[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.1"]
[White "Ranaldi, Lucas"]
[Black "Tari, Aryan"]
[Result "0-1"]
[ECO "A10"]
[WhiteElo "2353"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,53,9,0,33,25,27,27,29,28,29,24,29,23,37,21,39,43,41,41,39,39,33,0,0,0,0,-62,-66,-57,-58,-29993,-29994,-29994,-29995,-29997,-29998,-29998,-29999,-29999]} 1. c4 g6 2. Nf3 Bg7 3. e4 e5 4. d4 exd4 5. Nxd4 Nf6 6. Nc3 O-O 7. Be2 Re8 8. f3 c6 9. Bg5 h6 {A10: English Opening: Unusual Replies for Black.} 10. Bh4 d5 11. cxd5 cxd5 {White has an edge.} 12. Nxd5 g5 13. Nxf6+ Bxf6 14. Bf2 Qa5+ 15. Kf1 {[#]} Rd8 $146 {[#] White must now prevent ...Nc6.} ({Predecessor:} 15... Nc6 16. Nxc6 bxc6 17. Qe1 Qxe1+ 18. Rxe1 Bxb2 19. Bc4 Be6 20. Bxe6 Rxe6 21. Re2 Be5 {½-½ (36) Floren,D-Irmer,F DESC email 2011}) 16. Qc2 Nc6 17. Nxc6 bxc6 18. Be1 Qb6 19. Bc3 Bxc3 20. Qxc3 Ba6 21. Bxa6 ({Better is} 21. h4 $11) 21... Qxa6+ $15 22. Kf2 Rd3 $1 {[%cal Rd3c3][%mdl 1024] Black has compensation.} 23. Qf6 $2 {[%mdl 8192] White does not recover from this.} (23. Qe5 $15) 23... Rd2+ {Black mates.} 24. Kg3 {[#]} Qe2 $1 {[%csl Gd2][%cal Re2g2][%mdl 512]} 25. Rag1 Qf2+ 26. Kg4 Qh4+ 27. Kf5 Qf4# {Accuracy: White = 61%, Black = 93%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.2"]
[White "Urkedal, Frode Olav Olsen"]
[Black "Vestby-Ellingsen, Mads"]
[Result "1-0"]
[ECO "D38"]
[WhiteElo "2557"]
[BlackElo "2351"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,89,22,21,8,18,12,28,31,10,14,0,19,10,22,10,12,7,15,4,18,14,8,11,32,16,14,8,22,0,62,43,75,29,29,26,41,35,52,54,53,53,62,33,26,24,21,18,18,14,54,53,48,33,50,50,50,50,50,50,50,50,211,211,520,515,587,587,664,664,633,593,940,912,29976,7132,29983,29984,29998,29999]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 O-O 7. e3 h6 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. Bh4 Bf5 9. Qb3 Bxc3+ {White has an edge.} 10. Qxc3 {now supersedes 10.bxc3.} Nbd7 11. Nd2 c6 12. Be2 Ne4 13. Bxd8 Nxc3 14. bxc3 {[#] Hoping for Bh4.} Rfxd8 15. g4 {[#]} Be6 $146 ({Predecessor:} 15... Bh7 16. a4 Rac8 17. h4 c5 18. Bf3 Nf6 19. g5 Ne8 20. a5 b5 21. axb6 axb6 {½-½ (27) Stein,K (2521)-Dunlop,G (2535) ICCF email 2018}) 16. a4 Rac8 17. a5 c5 18. h3 f5 19. Rg1 Nf6 20. Nb3 {Threatens to win with g5.} cxd4 (20... b6 $1 $11) 21. cxd4 $14 fxg4 22. Nc5 (22. hxg4 {with more complications.} b6 23. Nc1 Ne4 24. f3 Ng5 25. Kd2) 22... Rxc5 23. dxc5 gxh3 24. a6 Rd7 25. f3 bxa6 26. Rxa6 Kf7 $1 27. Kf2 {[%mdl 1024] White has compensation.} Rc7 28. Ra5 g5 29. Rga1 Nd7 30. Kg3 Kf6 31. Bf1 $1 Nxc5 32. Rxa7 Rc6 33. Bxh3 Bxh3 34. Kxh3 {[%mdl 4096] [#] Endgame Strongly threatening Rc1. KRR-KRN} Ne6 35. R7a6 Rc3 36. R1a3 Rc1 $2 {A mistake that costs the game.} (36... Rc2 $14) 37. Rb6 $18 {Black must now prevent Raa6.} Re1 $2 (37... Kf5 38. Ra5 g4+ 39. fxg4+ Ke5) 38. Kg2 Ke5 39. Ra8 Nc5 40. Re8+ Kf5 41. Rxh6 d4 42. Rd6 d3 43. Kf2 (43. Kg3 $142 Rg1+ 44. Kf2 Rc1 45. e4+ Nxe4+ 46. Rxe4 Rc5 47. Red4 Ra5 48. R6d5+ Rxd5 49. Rxd5+ Kf4 50. Rxd3) 43... Re2+ 44. Kg3 g4 45. fxg4+ {Accuracy: White = 94%, Black = 61%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.3"]
[White "Risting, Eivind Olav"]
[Black "Notkevich, Benjamin Arvola"]
[Result "0-1"]
[ECO "D41"]
[WhiteElo "2300"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,96,11,31,0,0,0,2,0,0,1,15,0,0,0,0,0,10,-80,-62,-65,-77,-69,-62,-144,-44,-38,-34,-56,-45,-131,-102,-111,-114,-108,-78,-111,-53,-180,-175,-164,-177,-175,-129,-130,-140,-135,-125,-116,-116,-94,-93,-115,-81,-162,-155,-162,-163,-1240,-1313,-1302,-1233,-1226,-1125,-6079,-5177,-29950,-29950,-29954,-29949,-29950,-29945,-29968,-29970]} 1. d4 Nf6 2. c4 e6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. Nf3 cxd4 8. cxd4 Bb4+ 9. Bd2 Bxd2+ 10. Qxd2 O-O 11. Bc4 b6 12. O-O Nd7 13. Rfe1 Bb7 14. Bb3 {D41: Queen's Gambit Declined: Semi-Tarrasch with 5 cxd5.} Rc8 15. Rad1 Re8 16. h3 {The position is equal.} Nf6 17. Qf4 Qc7 18. Qh4 h6 19. Re3 {[#]} Qe7 $146 ({Predecessor:} 19... b5 20. Ne5 a5 21. a4 bxa4 22. Bxa4 Red8 23. f3 Ba8 24. Qf2 Rb8 25. Re2 Rb4 {½-½ (49) Epishin,V (2574)-Del Rio de Angelis,S (2489) Calvia 2005}) 20. Qf4 b5 21. g4 {[#]} (21. d5 $11) 21... a5 $1 $36 {[%cal Ra5a4][%mdl 2048] ...a4 is the strong threat. Black has the initiative.} 22. a4 bxa4 23. Bxa4 Red8 24. Bb5 (24. Rde1 $15) 24... Qc7 (24... g5 $17 25. Nxg5 e5) 25. Qxc7 $1 $15 Rxc7 26. Bd3 a4 27. Bb1 (27. Ra1 $15) 27... Rc4 28. d5 exd5 29. e5 Ne8 (29... Nh7 {is more complex.} 30. e6 fxe6 31. Rxe6 Rb4 32. Re3 d4) 30. Nd4 Rdc8 (30... Nc7 $17 31. Ba2 Rb4) 31. Nf5 (31. Ba2 $15 Rc1 32. Ree1) 31... Rc1 $19 32. Ree1 Rxd1 33. Rxd1 {aiming for Ne7+.} Kf8 34. Ba2 Rc5 35. Rb1 Bc6 36. Nd4 Bd7 37. Rb7 Ke7 38. f4 Nc7 {White must now prevent ...Ne6.} 39. f5 {[#]} (39. Kf2 $17) 39... Nb5 $1 {[%cal Rb5d4]} 40. Nxb5 Rxb5 41. Rxb5 $2 (41. Rc7) 41... Bxb5 42. Bxd5 $17 {[%mdl 4096] Endgame KB-KB} Bd3 43. Kf2 Bb1 44. Ke3 a3 45. h4 a2 {Black mates.} 46. Bxa2 Bxa2 47. Kf4 Bb1 48. g5 h5 {Accuracy: White = 47%, Black = 78%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.4"]
[White "Johansson, Linus"]
[Black "Nordquelle, Daniel"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2476"]
[BlackElo "2284"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,77,39,39,22,29,31,43,25,34,44,40,27,39,0,0,0,0,0,15,8,35,0,0,-81,168,171,195,-53,-35,-177,-93,-122,0,0,77,77,193,181,257,251,243,252,463,453,434,422,710,702,690,690,793,773,2057,1862,29979,12838,29980,29981,29989,29990,29990,29991,29996,29997,29997,124]} 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. a4 Bb4 6. g3 b5 7. Bg2 Bb7 8. O-O {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} (8. axb5 cxb5 9. O-O a6 $15) 8... a6 9. Ne4 Nf6 10. Nxf6+ {White is slightly better.} gxf6 {[#]} 11. e4 $146 ({Predecessor:} 11. Qc2 Nd7 12. Rd1 Qe7 13. Nd2 O-O 14. b3 cxb3 15. Qxb3 Nb6 16. Ne4 Nd5 17. Nc5 Bxc5 18. dxc5 {1-0 (68) Cheng,B (2433)-Solomon,S (2371) Melbourne 2014}) 11... Nd7 12. Bh6 Bf8 13. Bxf8 Kxf8 14. Qd2 Kg7 15. Qf4 Re8 16. Rfd1 Nb6 17. h4 Nxa4 18. Nh2 (18. Ne5 $1 $11 {keeps the balance.}) 18... Nb6 $2 (18... h5 $17 19. Qc1 c5) 19. Ng4 $18 {[%mdl 1024] White has strong compensation.} Nd7 20. e5 $2 (20. d5 $1 $18 exd5 21. exd5) 20... f5 $1 $15 {[%cal Rf5g4]} 21. Nh2 (21. Nh6 $1 $15) 21... Qe7 (21... h6 $19 22. Nf1 Qe7) 22. g4 $17 fxg4 ({Better is} 22... Qxh4 $17 {aiming for ...Rg8.} 23. Ra3 Qh6 24. Qxh6+ Kxh6 25. gxf5 exf5) 23. Nxg4 $11 Kh8 ({Much worse is} 23... Qxh4 24. Ra3 $16) (23... Rg8 $1 $11 {remains equal.} 24. Ra3 (24. Nh6 Rgf8 $17) 24... Kh8) 24. Nf6 $1 $16 {Black is on the road to losing.} Nxf6 (24... Rg8 $16 {keeps fighting.}) 25. exf6 $18 Qd7 ({Weaker is} 25... Qf8 26. Re1 $11) (25... e5 $142) 26. Kh2 $1 Rg8 {Strongly threatening ...c5!} 27. Be4 $40 {[%mdl 128] White has strong attack.} c5 $2 (27... b4) 28. dxc5 Qc8 {White must now prevent ...Bxe4.} 29. Rg1 Bxe4 (29... Rxg1 $142 30. Rxg1 Qb8 31. Qxb8+ Rxb8) 30. Rxg8+ Qxg8 31. Qxe4 {[%mdl 4096] Endgame KQR-KQR} Qb8+ {[#]} 32. Kh3 $1 Qd8 {[#]} 33. Rd1 $3 {[%cal Rd1d8][%mdl 512]} Qf8 (33... Qxd1 34. Qxa8+) 34. Rd7 (34. c6 $142 Re8 35. Rd7 Qg8 36. Qg4 Qxg4+ 37. Kxg4 Rg8+ 38. Kf4 h6 39. c7) 34... Rc8 35. c6 {White mates.} Qh6 36. Qd4 Rg8 37. Rd8 e5 38. Rxg8+ {[%mdl 64] Back Rank} Kxg8 39. Qd8+ $2 {Accuracy: White = 75%, Black = 36%.} (39. Qg4+ {mates} Kh8 40. Qc8+ {[%mdl 64] Double Attack} Qf8 41. Qxf8#) 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.5"]
[White "Fossan, Aleksander"]
[Black "Holm, Kristian Stuvik"]
[Result "0-1"]
[ECO "D40"]
[WhiteElo "2240"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,82,0,0,0,-7,0,-3,0,0,0,0,14,-30,-27,-41,-50,-112,-131,-112,-129,-116,-109,-127,0,-229,0,-321,-310,-311,-311,-316,-316,-315,-157,-290,-305,-332,-332,-334,-332,-352,-349,-326,-275,-303,-288,-303,-309,-294,-298,-401,-399,-391,-390,-569,-557,-658,-687,-584,-504]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. Bd3 dxc4 8. Bxc4 O-O 9. O-O Nc6 10. a3 b6 11. Re1 Bb7 12. Qd3 Rc8 13. Ba2 h6 {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3.} 14. Be3 {[#]} Bd6 $146 ({Predecessor:} 14... Re8 15. Rad1 Bf8 16. Bf4 Ne7 17. Rxe6 Bxf3 18. Rxf6 Bxd1 19. Rxf7 Kh8 20. Qxd1 Ng6 21. Be3 Rc7 22. Qg4 Rxf7 23. Bxf7 {1-0 (23) Cori,J (2657)-Azarov,S (2556) Saint Louis 2017}) 15. Rad1 Ne7 {[%cal Bc6e7,Be7d5,Bd5c3][%mdl 32] The position is equal.} 16. Ne5 Ned5 17. Bd2 Re8 18. Qh3 Nxc3 19. bxc3 Ne4 20. Bb1 ({White should try} 20. f4 $1 $15) 20... Nxd2 $17 21. Rxd2 Bxe5 ({Resist} 21... Bxa3 22. Ra2 $15) 22. Rxe5 Qd6 23. Qd3 Qxa3 $40 {[%mdl 128] Black mounts an attack.} ({Black should play} 23... Qc6 $17 {[%csl Gb7][%cal Rc6g2]} 24. f4 (24. Qh7+ $2 Kf8 $19) 24... Qxc3) 24. Qh7+ $1 $11 {Black continues to play with concentration.} Kf8 {( -> ...Qc1+)} 25. Rde2 $2 {[%mdl 8192]} (25. Rd1 $11 {and White is okay.}) 25... Rxc3 $19 {Threatens to win with ...Rc1+.} 26. Qh8+ Ke7 27. Qxg7 {White wants to mate with Rxe6+.} Rc1+ {[%mdl 64] Double Attack} 28. Re1 Rxe1+ 29. Rxe1 {[#]} Qa5 $1 {[%cal Ra5e1]} 30. Rd1 Qg5 31. Qxg5+ hxg5 {[%mdl 4096] Endgame KRB-KRB} 32. f3 Kd6 33. Kf2 Rc8 34. Be4 Bd5 35. Rb1 f5 36. Bd3 Rc3 37. Ke2 Ra3 38. Rb2 Ra4 39. f4 (39. Rd2 {might work better.}) 39... gxf4 {Black is clearly winning.} 40. h4 Rxd4 41. h5 {[#]} f3+ $1 {Accuracy: White = 57%, Black = 89%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.6"]
[White "Haldorsen, Benjamin"]
[Black "Shehzad, Shazil"]
[Result "1-0"]
[ECO "A11"]
[WhiteElo "2458"]
[BlackElo "2205"]
[Annotator "TA"]
[PlyCount "33"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,33,28,18,33,27,20,103,83,77,48,609,630,624,583,564,583,708,697,693,682,1116,1112,1106,1088,1071,1065]} 1. Nf3 d5 2. g3 c6 3. c4 Bg4 4. Ne5 Bf5 5. Qb3 Qb6 6. cxd5 {A11: English Opening: 1...c6.} Qxb3 7. axb3 {Black must now prevent Nc3.} Be4 (7... Bxb1 $1 $11 {keeps the balance.} 8. Rxb1 cxd5) 8. f3 {White is better.} Bxd5 9. Nc4 {[#] Strongly threatening Nb6!} b5 $146 {[%mdl 8192] [#] Loses the game.} (9... Na6 $14) ({Predecessor:} 9... Nd7 10. d4 Ngf6 11. Nbd2 h5 12. e4 Bxc4 13. Nxc4 e6 14. Bf4 Bb4+ 15. Kf2 O-O {½-½ (55) Shyam,N (2454)-Monnisha,G (2110) Chennai 2014}) 10. Nb6 $1 $18 {[%mdl 576] Pin. White is clearly winning.} Kd8 (10... axb6 11. Rxa8) 11. e4 Bxb3 12. Nxa8 Ba4 13. d4 Kc8 {[#]} 14. b3 $1 Bxb3 15. Rxa7 {[%cal Ba1a7,Ba7c7,Bc7c6][%mdl 32]} Nd7 16. Rc7+ Kd8 17. Rxc6 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.7"]
[White "Sjoberg, Isak"]
[Black "Djurhuus, Rune"]
[Result "1-0"]
[ECO "C03"]
[WhiteElo "2189"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,85,31,13,16,20,28,1,13,-23,-21,-24,22,17,16,0,0,0,59,0,4,18,81,59,87,-31,-29,-30,-10,-9,97,78,121,101,172,169,171,158,167,161,166,121,172,171,218,215,511,467,465,465,455,428,419,310,318,256,264,256,248,218,219,221,217,223,251,231,230,233,271,263,366,337,384,317,393,383,686,681]} 1. e4 e6 2. d4 d5 3. Nd2 Be7 4. Bd3 c5 5. dxc5 Nf6 6. Qe2 a5 {C03: French Tarrasch: Unusual Black 3rd moves.} 7. Ngf3 Na6 8. e5 Nd7 {The position is equal.} 9. c4 Ndxc5 10. Bb1 {[#]} Nc7 $146 ({Predecessor:} 10... b6 11. cxd5 Qxd5 12. O-O Nb4 13. Nc4 Ba6 14. b3 Rd8 15. Ba3 O-O 16. Bxb4 axb4 {0-1 (33) Pourkashiyan,A (2308)-Rychagov,A (2538) Chalkis 2010}) 11. O-O b6 12. Rd1 Ba6 13. b3 O-O {[#]} (13... dxc4 $11 14. Nxc4 Nd5) 14. Nd4 (14. Ne4 $1 $14 {[%mdl 512]}) 14... Qe8 15. N2f3 f5 (15... dxc4 $11 16. bxc4 Qa4) 16. exf6 $1 $16 Bxf6 {...dxc4 is the strong threat.} 17. Ne5 (17. Ng5 $1 $16) 17... dxc4 $15 18. bxc4 Rd8 19. Bf4 {[#]} Bb7 (19... Nd5 $1 $11 {[%mdl 512] keeps the balance.} 20. Qc2 (20. cxd5 Bxe2) 20... g6 21. cxd5 Rxd5) 20. Bc2 $40 {[%mdl 128] White wants a kill.} N7a6 21. Nb5 g6 (21... Nb4 $16) 22. Bh6 Qe7 23. Bxf8 Rxf8 24. a3 Nb8 25. Nd6 Ba8 {[#]} (25... Nc6 $16 {is a better defense.}) 26. Rab1 $1 $18 Qc7 27. f3 Nb7 $2 (27... Nc6 28. Ng4 Bg7) 28. Nxg6 hxg6 29. Qxe6+ Kh7 30. Qh3+ Kg7 31. Qg3 Qc5+ 32. Kh1 Qg5 33. Qxg5 ({Much less strong is} 33. Rxb6 $6 Qxg3 34. hxg3 Nc5 $16) 33... Bxg5 34. Nxb7 Bxb7 35. Rxb6 Bc6 {If Black can now play ...Be3 this consolidates a bit.} 36. Rd6 Bf6 37. Rdxc6 Nxc6 38. Rxc6 {KRB-KRB} Rd8 {If only Black now had time for ...Rd2....} 39. g3 Rd2 40. Be4 Ra2 41. Ra6 Rxa3 42. c5 g5 $2 (42... Rc3 43. Rxa5 Be7) 43. Ra7+ {Accuracy: White = 77%, Black = 43%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.8"]
[White "Haug, Johannes"]
[Black "Nilsen, Tobias Lang"]
[Result "1-0"]
[ECO "E02"]
[WhiteElo "2431"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,69,58,41,59,1,12,6,26,30,35,61,97,91,114,115,117,98,101,100,115,119,118,94,83,95,100,87,93,58,60,47,60,25,22,5,6,28,93,89,106,27,33,38,87,2,147,147,243,239,806,789]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Qa4+ Nbd7 6. Qxc4 a6 7. Qc2 c5 8. O-O Be7 9. d4 O-O 10. Rd1 Ra7 11. Nc3 b5 {E02: Open Catalan: 5 Qa4+.} 12. dxc5 (12. Be3 $14) 12... Bxc5 $11 13. Ng5 {[#]} Qb6 $146 {The position is equal.} ({Predecessor:} 13... Qc7 14. Qb1 h6 15. Nge4 Bb7 16. Nxc5 Nxc5 17. Bxb7 Rxb7 18. Bf4 e5 19. Be3 Ng4 {1-0 (62) Karavade,E (2374)-Burrows,M (2121) Douglas 2018}) 14. Nce4 Nxe4 15. Nxe4 Rc7 {[#] aiming for ...Bxf2+!} 16. Nxc5 Qxc5 17. Qxc5 Rxc5 18. Be3 {Strongly threatening Rxd7.} Rc2 19. Rac1 Rxc1 20. Rxc1 Nf6 21. Bc5 Re8 22. Rd1 Nd5 23. e4 Nf6 24. b4 e5 25. a3 h6 26. f3 Be6 27. Bf1 Nd7 28. Bf2 $36 {[%mdl 2048] White has good play.} Nb8 (28... Rc8 $11 {remains equal.}) 29. Rd6 $16 Rc8 30. Ba7 (30. Rb6 $16) 30... Nc6 $1 $11 {[%cal Rc6a7]} 31. Bc5 Nb8 32. f4 ({White should play} 32. Be3 $16) 32... exf4 (32... Nd7 $11) 33. gxf4 $16 Bc4 (33... Bd7 $16 {keeps fighting.} 34. Bg2 Kh7) 34. Bh3 $18 Be6 $2 {[#]} (34... Re8 35. Bg2 Be6) 35. Rxe6 {Accuracy: White = 61%, Black = 58%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.9"]
[White "Kvaloy, Aksel Bu"]
[Black "Pantzar, Milton"]
[Result "1-0"]
[ECO "C56"]
[WhiteElo "2164"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,61,0,17,-1,0,-41,-41,-35,-29,-35,-39,-39,-37,-35,-33,-52,-40,-49,-34,-50,-47,-48,-41,-56,-64,-60,-50,-95,-74,-97,-79,-79,-77,-79,-75,-77,-83,-176,-185,-169,-177,-175,-175,-246,-256,-243,-243,-247,-262,-317,853,852]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 5. e5 Ne4 6. Qe2 Nc5 $1 (6... Bb4+ 7. Kd1 $16) 7. c3 {[#] C56: Two Knights: 4 d4 exd4 5 0-0 Nxe4.} d3 $1 {[%mdl 512]} 8. Bxd3 (8. Qe3 {feels hotter.} Be7 9. O-O d5 10. exd6 cxd6 11. Bxd3 Nxd3 12. Qxd3 O-O 13. Bf4) 8... Nxd3+ 9. Qxd3 {Black is slightly better.} d6 10. Bf4 dxe5 11. Qxd8+ Nxd8 {[%cal Bc6d8,Bd8e6,Be6g7,Bg7f5][%mdl 32]} 12. Bxe5 Ne6 13. O-O {[#]} f6 $146 {[%mdl 2048] Black has some pressure.} ({Predecessor:} 13... Bc5 14. Nbd2 Bd7 {½-½ (14) Szokol,I (1428)-Kapatos,E (1235) LSS email 2012}) 14. Bg3 Bd7 15. Nbd2 O-O-O 16. Nb3 g5 17. Nfd4 Ng7 18. c4 Nf5 19. Rfe1 Bb4 20. Re4 Rhe8 21. Rxe8 Rxe8 22. Nxf5 Bxf5 23. c5 Bc2 24. Rc1 (24. a3 $17) 24... Bxb3 $1 $19 25. axb3 {[%mdl 4096] Endgame KRB-KRB} Re2 26. c6 {[#]} b5 $1 ({Resist} 26... Rxb2 27. cxb7+ Kxb7 28. Rxc7+ Kb6 29. h3 $17) 27. h4 (27. Rb1 {was worth a try.}) 27... Rxb2 28. hxg5 fxg5 29. Be5 Rxb3 30. Rd1 {White wants to mate with Bf6.} Bd6 $4 {[%mdl 8192]} (30... Bc3 $19 31. Rd5 b4) 31. Bf6 {What a bad dream for Black. Accuracy: White = 70%, Black = 82%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.10"]
[Round "1.10"]
[White "Nilsen, Joachim Birger"]
[Black "Tunsjo, Axel"]
[Result "1/2-1/2"]
[ECO "E38"]
[WhiteElo "2411"]
[BlackElo "2149"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,133,76,112,51,54,54,50,15,62,0,190,88,84,83,106,112,116,108,108,73,147,146,139,135,212,162,181,194,190,179,192,182,190,195,200,181,176,158,237,231,226,225,253,247,263,258,292,273,308,252,258,244,258,257,254,244,367,360,375,367,367,357,322,0,357,346,359,266,418,176,273,272,255,183,168,168,189,179,364,364,343,123,123,123,123,129,134,123,113,123,133,133,441,441,441,441,4775,4775,4775,4775,1643,8,21,8,8,0,0,0,0,0,0,0,0,-8,-8,-16]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 Na6 {[%cal Bb8a6,Ba6c5,Bc5e4][%mdl 32]} 6. a3 Bxc3+ 7. Qxc3 Nxc5 8. b4 Nce4 9. Qb2 d5 10. c5 h6 {[#]} 11. Bf4 $146 {E38: Nimzo-Indian: Classical: 4...c5.} (11. f3 $16) ({Predecessor:} 11. f3 Ng5 12. h4 Ngh7 13. Bf4 O-O 14. g4 a5 15. e3 axb4 16. axb4 Rxa1+ 17. Qxa1 d4 18. e4 b6 {½-½ (40) Haugen,A (2499)-Nasybullin,V (2489) ICCF email 2013}) 11... Nh5 $14 12. Be3 O-O 13. g4 {White is slightly better.} Qf6 14. O-O-O ({White should try} 14. Qxf6 $14 Nhxf6 15. f3) 14... Qxb2+ (14... e5 $1 $11 {remains equal.} 15. gxh5 d4) 15. Kxb2 $16 Nhf6 16. f3 Ng5 17. h4 Ngh7 18. g5 Nh5 19. Bh3 f5 (19... Bd7 $142) 20. gxh6 g6 21. f4 a5 (21... N7f6 $16) 22. Nf3 axb4 23. axb4 Ra4 24. Kb3 Bd7 25. Ra1 Rfa8 26. Rxa4 Bxa4+ 27. Kb2 Bb5 28. Nd4 $36 {[%mdl 2048] Keeping Black busy.} Bc4 (28... Bd7 $16 {was called for.} 29. Ra1 Rxa1 30. Kxa1 N7f6) 29. Ra1 $18 Rxa1 30. Kxa1 Nf8 31. Bg2 Ng3 32. Bf3 Nf1 33. Bc1 Nh2 34. Bg2 Ng4 35. b5 Nxh6 36. c6 bxc6 37. bxc6 Nf7 (37... Kf7 $142 38. Kb2 Ng8) 38. Ba3 Ba6 39. Kb2 Bc8 40. Nb5 Ba6 41. Nd4 Bc8 $1 42. e3 e5 43. Nb5 ({Stronger than} 43. Bxd5 exd4 44. exd4 Ne6 $11) 43... Ba6 (43... e4 $142 44. Nc3 d4) 44. Nd6 (44. Nc7 $142 Bc4 45. Nxd5) 44... Nxd6 (44... e4 $142 45. Ne8 Ne6 46. Nf6+ {[%mdl 64] Double Attack} Kg7) 45. Bxd6 {[%mdl 4096] Endgame KBB-KBN} e4 46. c7 Ne6 47. Kc3 Kf7 {intending ...Ke8.} 48. Kb4 Ke8 $2 (48... d4) 49. Ka5 Bc8 50. Kb6 $2 (50. Be5 $18 {and the rest is easy.}) 50... d4 $16 51. exd4 Nxd4 {[#]} 52. Be5 $1 {[%cal Re5d4]} Nf3 53. Bf6 Kf7 54. Bc3 Nxh4 55. Bf1 g5 $2 {[%mdl 8192]} (55... Ke7 $16 {is tougher.}) 56. Ba6 $18 Bd7 57. Kc5 Ke7 ({Avoid the trap} 57... gxf4 $2 58. Kd6) (57... Ke6 $142 58. Bf6 Nf3) 58. fxg5 f4 59. Bf6+ Ke6 60. Bc4+ $2 ({Better is} 60. c8=B $18 f3 61. Bc4+ Kf5 62. Bxd7+ Kf4 63. Kd4) 60... Kf5 $11 {The position is equal.} 61. Kd6 Bc8 62. Bb5 f3 $1 63. Bd4 {[#] Strongly threatening Bd7+.} Kxg5 64. Be3+ Kf6 {Hoping for ...Nf5+.} 65. Bd4+ Kg5 {And now ...Nf5+ would win.} 66. Ke5 Nf5 67. Kxe4 {Black defended with fortune. Accuracy: White = 70%, Black = 63%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.1"]
[White "Tari, Aryan"]
[Black "Haug, Johannes"]
[Result "1/2-1/2"]
[ECO "C76"]
[WhiteElo "2634"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,89,31,21,28,29,31,34,37,51,41,32,39,39,50,44,67,67,60,7,104,100,111,64,74,57,76,75,143,146,183,138,273,195,218,82,70,64,66,0,0,0,0,0,18,0,0,0,42,48,59,52,41,12,37,0,0,0,0,0,0,0,20,-8,-13,-42,12,0,58,67,72,72,57,0,19,13,125,-49]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 g6 7. O-O Bg7 8. h3 Nf6 {C76: Ruy Lopez: Deferred Steinitz: 5 c3 Bd7 6 d4 g6.} 9. Re1 O-O 10. Bc2 h6 {White is slightly better.} 11. Nbd2 Re8 12. a3 Nh5 {[%cal Re5d4]} 13. Nf1 {[#]} Rb8 $146 ({Predecessor:} 13... Nf4 14. Ng3 Qf6 15. Bxf4 exf4 16. Ne2 Rad8 17. Nc1 g5 18. Nd3 h5 19. Nh2 Qh6 {½-½ (68) Hou,Y (2683)-Vignesh,N (2422) Doha 2015}) 14. Be3 b5 15. Qd2 g5 16. Ng3 (16. b4 $14) 16... Nf4 (16... Nxg3 $11 17. fxg3 Na5) 17. Rad1 $16 Bc8 18. b4 Qf6 {White should prevent ...Nxh3+!} 19. Nh2 h5 20. Kh1 Qh6 {[#]} (20... Qg6 $142) 21. h4 $1 {[%mdl 512]} Qg6 (21... gxh4 22. Ne2 $14) 22. Nf5 Bf6 (22... f6 $16 23. hxg5 fxg5) 23. Nf3 gxh4 {[%csl Gf4][%cal Rg6g2]} 24. Bxf4 (24. g3 $18 h3 25. Bxf4 exf4 26. Qxf4 Bxf5 27. Qxf5) 24... exf4 25. Qxf4 Bxf5 $1 26. Qxf5 (26. exf5 $14 Qg4 27. Qxg4+ hxg4 28. Nh2) 26... Qxf5 $11 27. exf5 Ne7 28. Be4 Rec8 29. Re3 Kg7 30. Kh2 Rb6 31. Kh3 c5 32. dxc5 $1 ({Much worse is} 32. Nxh4 cxd4 33. cxd4 d5 $11) 32... dxc5 33. Rd7 cxb4 34. cxb4 Rc1 35. Re1 Rc3 36. Re3 {[#] Hoping for Rxc3.} Rc1 $1 37. Kh2 Rf1 38. Re2 $132 {[%mdl 2048] White is fighting back} (38. Bd3 $5 {[%cal Rd3f1]} Rd1 39. Bxb5 Rxd7 40. Bxd7 $11) 38... Ra1 39. Re3 Rf1 (39... Ng8 $15) 40. Bd3 Rxf2 (40... Rd1 $11) 41. Rexe7 Bxe7 42. Rxe7 Ra2 43. Be4 ({White should play} 43. Rc7 $14) 43... Rd6 44. Ra7 {Ng5 is the strong threat.} ({But not} 44. Nxh4 Rxa3 45. Nf3 Re3 $15) 44... Kf6 (44... Rxa3 $11 {remains equal.} 45. Ne5 Kf6 46. Nd7+ Kg5) 45. Ra8 $2 {Accuracy: White = 70%, Black = 68%.} ({Stronger than} 45. Nxh4 Rxa3 46. Nf3 Re3 $15) (45. Kh3 $16) 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.2"]
[White "Mihajlov, Sebastian"]
[Black "Urkedal, Frode Olav Olsen"]
[Result "1/2-1/2"]
[ECO "C68"]
[WhiteElo "2389"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,35,11,22,20,16,20,31,14,31,9,46,47,39,33,49,34,44,29,32,28,33,29,30,30,37,31,52,39]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Qf6 6. d4 {C68: Ruy Lopez: Exchange Variation, sidelines.} exd4 7. Bg5 Qd6 8. Nxd4 Be7 9. Be3 Qg6 10. Nc3 {[#]} Nh6 $146 ({Predecessor:} 10... Nf6 11. f3 Bd7 12. Qe2 O-O-O 13. Nb3 Bd6 14. Bc5 Bf4 15. Qf2 b6 16. Ne2 Nh5 {0-1 (40) Timman,J (2588)-Stefanova,A (2527) Antwerp 2009}) 11. f3 O-O 12. Qd2 Rd8 {With the idea ...c5.} 13. Qf2 f5 14. e5 c5 15. Nde2 Qc6 $1 16. Rad1 Nf7 17. Rxd8+ Bxd8 18. Bxc5 {Accuracy: White = 100%, Black = 91%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.3"]
[White "Notkevich, Benjamin Arvola"]
[Black "Tryggestad, Andreas Garberg"]
[Result "1-0"]
[ECO "D96"]
[WhiteElo "2476"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,93,39,25,36,22,17,22,20,24,27,31,27,23,19,45,29,45,50,56,-2,0,-11,-22,-19,-18,-3,-10,-22,-11,-8,-19,-49,0,0,0,-8,0,0,0,0,0,0,0,1,35,23,71,81,122,111,121,119,112,125,136,135,198,117,154,148,130,108,160,121,124,130,121,121,130,132,153,159,157,152,145,151,152,160,151,156,142,132,675,666]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 Be6 7. Qb5+ {D96: Grünfeld: Russian System (5 Qb3): sidelines.} Bd7 8. Qxb7 Nc6 9. Qb3 {The position is equal.} Rb8 10. Qd1 Bf5 11. a3 O-O 12. e3 Qd6 {[#]} 13. Be2 $146 ({Predecessor:} 13. b4 e5 14. dxe5 Nxe5 15. Qxd6 Nxf3+ 16. gxf3 cxd6 17. Bd2 Nd7 18. Rc1 Rfc8 19. Ba6 {1-0 (52) Trzcinski,I (2339)-Szczepankiewicz,D (2421) ICCF email 2018}) 13... Rfd8 14. O-O e5 15. Qa4 ({White should play} 15. dxe5 $14 Qc5 16. Qa4 Nxe5 17. e4) 15... exd4 $11 16. Nb5 Qd7 {[#] Hoping for ...d3.} 17. Nbxd4 Nxd4 18. Qxd4 Ne4 19. Qxd7 $1 Bxd7 20. Bd3 Nc5 21. Bc4 Be6 22. Bxe6 Nxe6 23. Rb1 Rb3 24. Nd2 Rbd3 25. Nc4 Nc5 26. b4 Na4 {...Nc3 is the strong threat.} 27. g3 Rd1 {aiming for ...Nc3.} 28. Bb2 $36 {[%mdl 2048] White has the initiative.} Nxb2 29. Nxb2 R1d2 30. Nc4 R2d3 31. Rfc1 a6 32. Kf1 Bf8 33. Ke2 h5 (33... R3d5 $16 34. h4 h5) 34. Rd1 (34. Rb2 $18) 34... R3d5 35. Rxd5 Rxd5 $16 {[%mdl 4096] Endgame KRB-KRN} 36. Rb3 Kg7 (36... Rb5 $142) 37. f4 Rb5 38. Rd3 c5 39. bxc5 Rxc5 40. Ne5 Rc2+ 41. Kf3 Be7 42. Rd7 Kf8 43. a4 Rxh2 44. Ra7 h4 45. gxh4 ({Don't do} 45. Rxa6 $6 Rh3 $14) 45... Rh3+ {[#]} 46. Kf2 $1 Bc5 $2 {[%mdl 8192]} (46... Rh2+ $16 47. Kg3 Ra2 48. Rxa6 Kg7) 47. Nd7+ {[%mdl 64] Double Attack. Accuracy: White = 88%, Black = 71%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.4"]
[White "Storme, Isak"]
[Black "Johansson, Linus"]
[Result "0-1"]
[ECO "A62"]
[WhiteElo "2379"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,66,21,9,17,35,14,33,27,31,0,0,0,0,0,0,0,6,0,0,6,5,6,8,12,9,0,0,0,0,-7,0,0,89,65,97,-294,-286,-254,-284,-249,-278,-264,-81,-76,-75,-29990,-29991,-29991,-29992]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Re8 10. Bf4 Na6 {10...Bf5 is becoming the main line.} 11. Re1 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7.} Bg4 12. h3 Bxf3 13. Bxf3 {White is slightly better.} Qd7 14. e4 {[#]} c4 $146 ({Predecessor:} 14... Rad8 15. Kh2 c4 16. b3 Nh5 17. Bd2 Nc5 18. bxc4 f5 19. Rb1 Qf7 20. exf5 Qxf5 {½-½ (35) Sandipan,C (2613)-Arun Prasad,S (2513) Kolkata 2012}) 15. e5 dxe5 16. Rxe5 Nb4 17. Be2 $1 Rxe5 18. Bxe5 Qxh3 19. Bxf6 Bxf6 20. Bxc4 {With the idea Ne4.} Qf5 21. a3 Na6 22. Qe2 Nc5 23. d6 Rd8 24. Re1 Bxc3 25. bxc3 {And now Qe7 would win.} Kg7 (25... Rxd6 $11 {keeps the balance.} 26. Qe8+ Kg7) 26. Bxf7 Rxd6 {[#]} 27. Qe8 $2 {[%mdl 8192]} (27. Bc4 $1 $16 {keeps the pressure on.} Rd7 28. Qe8) 27... Rf6 $19 ({Wrong is} 27... Qxf7 $2 {[#]} 28. Re7 $1 $18 {[%mdl 512]}) 28. Qg8+ {[#]} Kh6 $1 {[%mdl 512]} 29. Qf8+ {[#]} Kh5 $1 {[%mdl 512]} 30. f3 {g4+ is the strong threat.} Qxf3 $2 $40 {[%mdl 128] Black has strong attack.} (30... Rxf7 $19 {is more deadly.} 31. g4+ Kg5 32. Qd8+ Qf6 33. Re5+ Kh4) 31. Qxc5+ $17 Rf5 32. Re5 $2 {[%mdl 8192]} (32. Bxg6+ $17 hxg6 33. Qe3) 32... Qxg3+ {[%mdl 64] Double Attack} 33. Kh1 Rxe5 {Accuracy: White = 69%, Black = 76%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.5"]
[White "Holm, Kristian Stuvik"]
[Black "Sjoberg, Isak"]
[Result "1-0"]
[ECO "D00"]
[WhiteElo "2462"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,55,0,53,21,23,4,21,18,84,82,91,86,81,69,117,116,120,130,163,80,96,76,150,140,131,121,131,125,118,125,158,160,155,156,160,156,231,222,211,72,316,328,317,324,340,331,319,307]} 1. d4 Nf6 2. Bg5 d5 3. Nd2 c5 4. dxc5 Nc6 {[#]} 5. e4 $146 ({Predecessor:} 5. c3 a5 6. Ngf3 e6 7. e4 Bxc5 8. Bd3 h6 9. Bh4 Be7 10. O-O O-O 11. e5 Nd7 12. Bxe7 Qxe7 {1-0 (36) Andreikin,D (2712)-Wang,H (2709) Huaian 2017}) 5... e5 (5... dxe4 $11 6. Ne2 Qa5) 6. exd5 {D00: 1 d4 d5: Unusual lines.} (6. Bxf6 $5 gxf6 7. Ne2 $11) 6... Qxd5 7. Nb3 Qe4+ 8. Qe2 {The position is equal.} Nd4 (8... a5 $11 {keeps the balance.}) 9. Nxd4 $16 Qxd4 10. Qb5+ Nd7 11. Be3 Qe4 12. O-O-O a6 13. Qa5 Be7 14. Be2 (14. Ne2 $18 {has better winning chances.}) 14... O-O 15. Qc7 (15. Bf3 {seems wilder.} Qc4 16. Kb1 Bxc5 17. Qc7 Qb5 18. Ne2) 15... Qc6 (15... Qa4 $142) 16. Qxc6 bxc6 17. Nf3 f6 18. b4 a5 19. a3 {[%cal Ba2a3,Ba3b4][%mdl 32]} axb4 20. axb4 e4 21. Nd4 Ne5 22. Bf4 Ba6 (22... Ng6 $16) 23. Bxa6 $18 Rxa6 24. Nb3 (24. Kd2 $18) 24... Nc4 $2 {[#] Black cannot hold the game after this.} (24... Ra4 $16 {was necessary.}) 25. Rd4 $1 {[%csl LRc4,LRe4] White has a decisive advantage.} Ne5 26. Rxe4 Rfa8 {White should prevent ...Ra1+.} 27. Bxe5 fxe5 28. Kb2 {Accuracy: White = 70%, Black = 51%.} ({Weaker is} 28. Rxe5 Bf6 $14) 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.6"]
[White "Kvaloy, Aksel Bu"]
[Black "Haldorsen, Benjamin"]
[Result "0-1"]
[ECO "B15"]
[WhiteElo "2164"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,94,23,25,36,39,56,34,17,9,14,11,12,14,12,6,21,17,19,15,14,17,27,14,38,17,38,40,181,150,183,182,183,164,200,205,210,195,193,202,285,319,325,317,404,313,314,301,445,426,408,339,339,346,339,281,240,202,137,89,73,48,63,0,0,0,0,-52,-52,-531,-491,-1409,-1260,-29979,-29980,-29980,-29981,-29981,-29981,-29978,-29978]} 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4 Bd6 7. Qe2+ Be7 8. O-O O-O 9. d4 Bd6 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 10. Re1 Bd7 11. Bd2 {[#]} a5 $146 {White is slightly better.} ({Predecessor:} 11... Qc8 12. a4 a5 13. Nh4 b6 14. Bd3 f5 15. Qh5 g6 16. Qh6 Be6 17. d5 cxd5 {1-0 (37) Gligoric,S-Puc,S Zagreb 1946}) 12. a4 Na6 {[%cal Bb8a6,Ba6c7,Bc7d5,Bd5b4][%mdl 32]} 13. c3 Nc7 14. Nh4 g6 15. Qd3 {[#] Hoping for Nxg6!} Nd5 16. Bb3 Re8 17. Rxe8+ Bxe8 18. Re1 Bd7 19. c4 Nb4 20. Qe3 Qc7 21. c5 Bxh2+ (21... Bf8 $1 $14) 22. Kh1 $18 {aiming for Qe7!} Re8 {[#]} 23. Qh6 $1 Rxe1+ 24. Bxe1 {White wants to mate with Bxf7+!} Nd5 25. g3 $40 {[%mdl 128] White attacks with force.} Bxg3 26. fxg3 Be6 27. Ng2 b6 (27... Qd8 {was worth a try.} 28. Bd1 Nb4) 28. Nf4 Bf5 ({Reject} 28... Nxf4 29. Qxf4 Qxf4 30. gxf4) 29. Nxd5 cxd5 30. Qe3 Be4+ 31. Kh2 bxc5 (31... g5 $142 32. Bd1 h6) 32. dxc5 Qe5 33. Bd1 Qxb2+ 34. Qd2 Qe5 35. c6 ({Less strong is} 35. Qxa5 Qd4 $16) 35... d4 36. Qxa5 Bxc6 {( -> ...Qe4)} 37. Qxe5 fxe5 38. g4 f5 39. Bb3+ (39. a5 $14) 39... Kg7 $11 40. g5 h6 $1 {[%cal Rh6g5]} 41. Bh4 (41. Ba5 $1 $11) 41... d3 $1 $15 {[%mdl 1024] White must now prevent ...f4. Black has compensation.} 42. Kg1 $2 {[%mdl 8192]} (42. Kh3 $15) 42... e4 43. Kf2 (43. a5 $142 e3 44. a6) 43... f4 $19 44. a5 e3+ {Black mates.} 45. Ke1 d2+ 46. Ke2 Bb5+ 47. Kd1 f3 {Accuracy: White = 68%, Black = 77%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.7"]
[White "Vea, Odin Blikra"]
[Black "Nilsen, Joachim Birger"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2204"]
[BlackElo "2411"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,50,-31,-35,-95,-52,-52,-80,-116,-107,-122,-146,-139,-94,-102,-47,-76,-77,-275,-264,-272,-278,-262,-247,-278,-267,-291,-277,-318,-264,-316,-283,-294,-285,-443,-466,-871,-864,-1166,-1173,-1126,-1134,-1052,-796]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. Bg5 Qb6 6. Bd3 {B12: Caro-Kann: Advance Variation.} (6. b3 $15) 6... Qxd4 {Threatens to win with ...Bxd3.} 7. Nf3 $1 {[%cal Rf3d4]} Qg4 {[#]} 8. Rh3 $146 {[#] Strongly threatening Rg3.Black is better.} ({Predecessor:} 8. Bxf5 Qxf5 9. O-O Qd7 10. e6 Qxe6 11. Re1 Qd6 12. c4 f6 13. Qb3 Nd7 14. Be3 {1-0 (44) Morozevich,A (2656)-Bocharov,D (2557) Sochi 2018}) 8... Bxd3 9. Qxd3 e6 10. Nbd2 Qa4 (10... Qxg2 11. Rg3 $16) 11. Nd4 Na6 ({Better is} 11... Ne7 $17 12. N2f3 Nd7) 12. b3 Qa5 13. f4 $2 {[#] This move loses the game for White.} (13. c3 $17) 13... Nb4 $19 14. Qc3 c5 15. Ne2 d4 16. Qb2 f6 17. exf6 gxf6 ({Weaker is} 17... Nxf6 18. c3 $15) 18. c3 Nd5 ({Inferior is} 18... fxg5 19. cxb4 Qxb4 20. hxg5 $11) 19. cxd4 O-O-O 20. dxc5 Rh7 ({Less strong is} 20... Bxc5 21. a3 $17) 21. O-O-O (21. b4 $142 Nxb4 22. Nb3 Nd3+ 23. Kf1 Nxb2 24. Nxa5) 21... fxg5 {Black is clearly winning.} 22. hxg5 (22. Rd3 $142 Rhd7 23. c6) 22... Bg7 23. Qc2 Qa3+ 24. Kb1 Nb4 25. Nc4 Rxd1+ {Accuracy: White = 36%, Black = 80%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.8"]
[White "Kaasen, Tor Fredrik"]
[Black "Aarnes, Eirik"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2401"]
[BlackElo "1902"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,57,23,44,42,42,38,43,44,43,32,57,27,22,6,4,9,5,0,0,0,45,45,42,28,38,13,38,0,6,20,21,0,54,9,66,45,396,383,413,395,1842,1841,29985,29986,29996,29997]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nde2 Be6 8. g4 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Be7 9. Bg2 O-O 10. Be3 {White is slightly better.} b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 11. Qd2 Nbd7 {[#]} 12. g5 $146 ({Predecessor:} 12. O-O-O b4 13. Nd5 Bxd5 14. exd5 a5 15. Ng3 Nb6 16. Qd3 Ne8 17. h4 g6 18. h5 {1-0 (27) Oliveros,C (2021)-Ruiz Agudelo,S (1873) Medellin 2016}) 12... b4 13. Nd5 Nxd5 14. exd5 Bf5 15. h4 Rc8 16. Rc1 Nb6 17. b3 $1 a5 18. Ng3 $36 {[%mdl 2048] White fights for an advantage.} Bd7 19. Ne4 Bb5 20. Bh3 Rb8 $1 21. h5 Bd7 22. Bg2 Bb5 (22... f5 $11 23. gxf6 gxf6) 23. Rg1 (23. g6 $5) 23... Rb7 (23... Kh8 $11) 24. Bh3 (24. a3 $5) 24... Bd7 $2 {[%mdl 8192] [#] Black cannot hold the game after this.} ({Black should try} 24... Kh8 $1 $14) 25. Bxb6 $1 $18 {[%mdl 64] Overworked Piece} Rxb6 26. Bxd7 Qxd7 $2 {[#]} (26... Rb7 27. Bc6 Rc7) 27. Nf6+ $1 {[%mdl 576] Promotion} Bxf6 (27... gxf6 28. gxf6+) 28. gxf6 Qf5 {[#]} 29. Qh6 $1 {Accuracy: White = 81%, Black = 48%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.9"]
[White "Tunsjo, Axel"]
[Black "Djurhuus, Rune"]
[Result "0-1"]
[ECO "B27"]
[WhiteElo "2149"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,101,-6,-12,-12,-12,-12,-18,-17,-16,0,0,0,-43,-47,-48,-48,-43,-39,-81,-90,-102,-89,-191,-200,-222,-199,-226,-144,-153,-146,-151,-151,-151,-145,-207,-113,-138,-119,-110,-121,-113,-90,-90,-89,-90,-84,-82,-82,-82,-76,-75,-79,-75,-64,-135,-128,-150,-124,-115,-40,-232,-255,-249,-171,-234,-232,-233,-181,-387,-397,-406,-396,-696,-670,-725,-707,-1305,-420,-420,-420,-1971,-991,-992,-803,-5065,-4610,-5081,-5073,-29989,-29990,-29990]} 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Bd2 Qxc5 6. Bc3 Nf6 7. Bd3 O-O {B27: Sicilian: 2 Nf3, unusual Black 2nd moves.} 8. O-O Nc6 9. Nbd2 d6 {The position is equal.} 10. h3 b5 11. Nb3 Qb6 12. Nbd4 {[#]} b4 $146 ({Predecessor:} 12... Nxd4 13. Bxd4 Qc6 14. e5 dxe5 15. Bxe5 Bb7 16. Qe2 a6 17. Rfe1 Rac8 18. c3 Rfe8 {0-1 (41) Bombek,P (2209)-Brodowski,P (2426) Frydek Mistek 2008}) 13. Nxc6 Qxc6 {[%mdl 64] Double Attack} 14. Bxb4 Nxe4 15. Qe2 Bb7 16. Rfe1 {[%cal Rd3e4] [#]} Ng5 $1 {[%mdl 512]} 17. Nh4 {[#]} (17. Bd2 $17 {might work better.} Nxf3+ 18. Qxf3) (17. Nxg5 Qxg2#) 17... Nxh3+ $1 {[%mdl 512]} 18. Kh2 (18. gxh3 Qh1#) 18... Nf4 (18... Bxb2 19. Kxh3 Bxa1 20. Rxa1 $15) 19. Qxe7 Be5 20. Rxe5 {Strongly threatening Bb5.} dxe5 21. Qxe5 Nxd3 ({Inferior is} 21... Nxg2 22. Bxf8 (22. Bc3 $2 f6 $19) 22... Rxf8 23. Bb5 $14) 22. cxd3 Rfe8 23. Qg3 (23. Qf4 $17) 23... Qd5 (23... Qb5 $19 24. Bc3 Rad8) 24. Rc1 $17 Qe5 ({Much worse is} 24... Qxa2 $6 25. Nf5 $11) 25. Rc7 {And now Qxe5 would win.} Qxg3+ 26. Kxg3 Ba6 27. d4 Rec8 28. Re7 Rab8 29. a3 Rb7 30. Re5 Bc4 31. Nf3 f6 32. Ra5 Rd8 33. Bc5 (33. Bc3 $15) 33... a6 34. Nd2 Bd3 35. b4 Rbd7 (35... Rb5 $17 {aiming for ...Rxa5.} 36. Ra4 Ra8) 36. Kf3 $2 {White does not recover from this.} ({Better is} 36. f3 $15) 36... Re8 $19 37. a4 Re2 38. Nf1 (38. Nb1 $142) 38... Ra2 39. Ne3 f5 {Threatens to win with ...g5.} 40. g4 $2 (40. Kg3) 40... h5 41. gxf5 gxf5 42. Bb6 $2 (42. d5 h4 43. Nxf5 Bxf5 44. Rxa6) 42... h4 43. Nxf5 Rf7 44. Kg4 Rxf5 (44... Bxf5+ $142 45. Rxf5 Rxf5 46. Kxf5 h3) 45. Rxf5 Bxf5+ 46. Kxf5 {KR-KB} (46. Kxh4 $142 Rxa4 47. Kg5) 46... h3 47. Bc7 Rxa4 48. d5 Rxb4 49. d6 Kf7 {( -> ...h2)} 50. Ke5 h2 51. d7 {Accuracy: White = 46%, Black = 70%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.11"]
[Round "2.10"]
[White "Pantzar, Milton"]
[Black "Fossan, Aleksander"]
[Result "1/2-1/2"]
[ECO "D76"]
[WhiteElo "2417"]
[BlackElo "2240"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,45,12,4,12,3,21,-49,-35,-54,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 O-O 5. Bg2 d5 6. cxd5 Nxd5 7. O-O Nb6 8. Nc3 Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 9. d5 Na5 10. e4 c6 11. Bf4 cxd5 12. exd5 {has lost popularity (12.Nxd5).} Nac4 13. Qe2 Bf5 {D76: Fianchetto Grünfeld: Main Line with 7...Nb6.} 14. Rac1 Rc8 {[#]} 15. Rfd1 $146 ({White should try} 15. b3 $11 Nd6 16. Ne5) ({Predecessor:} 15. Nh4 Bd7 16. b3 Nd6 17. Be5 Bh6 18. Rcd1 Re8 19. Rfe1 Nf5 20. Nxf5 Bxf5 21. g4 {1-0 (38) Khismatullin,D (2673)-Duzhakov,I (2420) Moscow 2015}) 15... Nxb2 $1 $15 {Black is slightly better.} 16. Qxb2 {Threatens to win with Qb3.} Rxc3 (16... Na4 $1 $15 17. Qxb7 Nxc3) 17. Rxc3 $11 {aiming for Qb3.The position is equal.} Na4 $1 {[%cal Ra4b2][%mdl 64] [#] Double Attack, Pin} 18. Qxb7 Nxc3 19. Rd2 Ne4 20. Re2 Nc3 21. Rd2 Ne4 22. Re2 Nc3 23. Rd2 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.1"]
[White "Haldorsen, Benjamin"]
[Black "Notkevich, Benjamin Arvola"]
[Result "0-1"]
[ECO "A13"]
[WhiteElo "2458"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,116,7,6,18,18,18,18,18,18,19,29,22,0,16,0,20,19,59,41,51,75,52,56,68,38,44,54,56,4,8,0,0,0,0,0,0,-84,-78,-79,-87,-95,-90,-93,-92,-145,-145,-214,-207,-264,-145,-145,-105,-104,-114,-108,-50,-184,-195,-191,-85,-72,-82,-72,-68,-64,-68,-135,-122,-191,-123,-166,-157,-185,-170,-283,-283,-291,-237,-940,-932,-12840,-12840,-12841,-12841,-12841,-12842,-12842,-12843,-12843,-12843,-12844,-12844,-12845,-12845,-12845,-12844,-12845,-12845,-12845,-12846,-12846,-12847,-12847,-12847]} 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 d4 5. O-O c5 6. e3 Nc6 7. exd4 cxd4 8. d3 Bd6 {A13: English Opening: 1...e6.} 9. Bg5 h6 10. Bxf6 $1 Qxf6 {The position is equal.} 11. Nbd2 Qe7 12. a3 a5 13. Re1 O-O 14. Rc1 {now scores much better than the old 14.Nb3. Played by Fabiano Caruana in May 2020.} e5 15. Qc2 {[#]} Bc5 $146 {[#]} ({Predecessor:} 15... Bf5 16. c5 Bc7 17. Qc4 Qf6 18. Qb5 Rfb8 19. Ne4 Qd8 20. Nfd2 Bd7 21. Qc4 Be6 {0-1 (56) Belous,V (2564)-Cornette,M (2586) chess.com INT 2017}) 16. Nxe5 $1 {[%mdl 512]} Nxe5 17. f4 {[#]} Nxd3 $1 {[%mdl 512]} 18. Qxd3 Qc7 19. Nb3 Be7 20. Nxd4 (20. Qxd4 a4 $17) 20... Bf6 21. Kh1 ({White should play} 21. Nb5 $14 Qc5+ 22. Qe3 Qxe3+ 23. Rxe3) 21... Qc5 $11 22. Nb3 Qh5 23. Bf3 Bg4 24. Bxg4 ({Don't play} 24. Bxb7 Rab8 $17) 24... Qxg4 25. Nc5 (25. Qe2 $11 {keeps the balance.} Qf5 26. Qc2) 25... Bxb2 $17 26. Rb1 Rfd8 27. Qe2 Qxe2 28. Rxe2 Bxa3 29. Nxb7 (29. Na4 $142) 29... Rdb8 30. Ra2 (30. Rb5 $17 a4 31. Ra2) 30... Be7 $19 31. Rb5 a4 ({Black should try} 31... Ra7 $1 $19 {White must now prevent ...a4.} 32. Rab2 (32. Nxa5 $2 Rxb5 33. cxb5 Bd8 $19) 32... a4) 32. c5 $17 Kf8 33. c6 a3 $1 34. Kg2 Ra6 (34... Rc8 $17 35. Na5 g6) 35. c7 (35. Nc5 $1 $15 Rxb5 36. Nxa6) 35... Rc8 $1 $19 36. Nd8 {intending Rb8.} Ke8 (36... Bd6 $19 {and Black stays clearly on top.} 37. Nb7 Bxc7) 37. Rb8 $17 {Threatens to win with Rd2.} Kd7 $1 38. Nxf7 Rxc7 39. Ne5+ Ke6 40. h4 {White is on the road to losing.} (40. Rb3 $15) 40... Rc3 $1 41. Kh3 (41. Re8 $17) 41... h5 (41... Bd6 $19 42. Re8+ Kf6 43. Ng4+ Kf7) 42. Rb7 Bf6 43. Rb5 Ra4 {And now ...Rxf4 would win.} 44. Kg2 {[#]} (44. Ng6 {was called for.}) 44... Re4 $1 $19 45. Rb6+ Kf5 {...Ree3 is the strong threat.} 46. Rf2 $2 (46. Kh2) 46... Ree3 {Black is clearly winning.} 47. Nf3 {[#]} Rxf3 $1 {[%mdl 576] Deflection, Promotion} 48. Rxf3 Rxf3 49. Kxf3 {[%mdl 4096] Endgame KR-KB} a2 50. Rb5+ {[#]} Kg6 $1 51. f5+ Kh7 52. Ra5 a1=Q 53. Rxa1 Bxa1 {KB-K3P} 54. Kf4 Bf6 55. Ke4 Kg8 56. Kf4 Kf7 57. Ke4 Bc3 58. Kf4 Kf6 {Accuracy: White = 53%, Black = 84%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.2"]
[White "Johansson, Linus"]
[Black "Holm, Kristian Stuvik"]
[Result "1-0"]
[ECO "D85"]
[WhiteElo "2476"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,69,22,23,-10,-2,0,18,6,4,6,4,2,11,15,12,10,43,40,40,27,42,39,35,35,57,42,60,27,39,10,25,8,17,18,35,35,35,27,37,37,48,48,62,63,62,48,70,63,249,234,433,434,374,340]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Qa4+ Nd7 8. Nf3 O-O 9. Be2 c5 {9...Nb6 deserves study.} 10. O-O {D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3.} cxd4 11. cxd4 Nb6 12. Qa3 {The position is equal.} Bg4 13. Bg5 Bxf3 14. Bxf3 Qxd4 15. Qxe7 {[#]} Qe5 $146 ({Predecessor:} 15... Qa4 16. Rac1 Qxa2 17. Qxb7 Rab8 18. Qc6 Rbc8 19. Qd6 Qa5 20. Bd2 Qe5 21. Qxe5 Bxe5 {½-½ (31) Bogner,S (2619)-Djukic,N (2567) Batumi 2018}) 16. Rac1 Rac8 17. Qxe5 Bxe5 18. Bg4 Rc4 19. Rxc4 Nxc4 20. Rd1 Rb8 21. Rd5 Kg7 22. h4 {[#] Hoping for Be2.} h6 23. Bc1 h5 24. Bh3 Bf6 25. g3 Rd8 26. Rxd8 Bxd8 $14 {[%mdl 4096] Endgame KBB-KBN} 27. Kf1 Kf8 28. Ke2 Ke7 29. Bc8 b6 30. Ba6 Nd6 31. Bd3 Ke6 32. Bc2 Bf6 $2 {[#]} (32... Kd7 $14) 33. Bb3+ $18 Ke7 $2 (33... Kd7 {was worth a try.} 34. Bf4 Nxe4) 34. Ba3 Bd4 35. Bxd6+ {Accuracy: White = 86%, Black = 73%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.3"]
[White "Nilsen, Joachim Birger"]
[Black "Tari, Aryan"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2411"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,26,16,20,20,10,25,31,23,19,48,19,14,22,18,20,11,18,35,27,35,22,47,45,48,43,37,9,12,10,8,11,25,0,28,13,30,18,17,12,15,13,57,37,49,16,26,22,16,7,13,9,16,1,0,-9,0,-9,7]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. e3 O-O 6. Bd3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} c5 7. Nge2 Nc6 8. a3 {White has an edge.} Bxc3+ 9. Qxc3 e5 {[#]} 10. d5 $146 ({Predecessor:} 10. dxc5 dxc5 11. Ng3 Qe7 12. Qc2 Re8 13. Ne4 Nxe4 14. Bxe4 g6 15. Bd2 Be6 16. g3 {0-1 (39) Kudrnac,V-Kout,Z Czechia 1996}) 10... e4 11. dxc6 exd3 12. Qxd3 bxc6 13. O-O d5 14. Qc2 Ng4 15. b4 Ba6 16. h3 Ne5 17. cxd5 Qxd5 18. Nf4 (18. Rd1 $5 {[%cal Rd1d5]} Bd3 19. Qc3 $14) 18... Qc4 19. Qxc4 Nxc4 20. Re1 Rfd8 21. e4 Rab8 22. Ne2 Rd3 23. Bf4 Re8 24. bxc5 Rxe4 25. Ng3 Re6 26. Red1 Rd5 {[#]} 27. Nf5 $1 {[%mdl 512]} g6 (27... Rxf5 28. Rd8+) 28. Rxd5 cxd5 {The position is equal.} 29. Ne3 d4 30. Nxc4 Bxc4 31. Rc1 Bb5 32. a4 Bc6 33. f3 f6 {Accuracy: White = 83%, Black = 89%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.4"]
[White "Urkedal, Frode Olav Olsen"]
[Black "Kaasen, Tor Fredrik"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2557"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,95,37,41,30,49,46,41,39,58,45,60,39,106,102,108,117,107,0,56,50,62,0,5,0,111,56,52,3,56,0,83,79,150,144,95,62,70,66,70,47,32,0,0,0,0,0,22,-11,0,-1,0,0,0,0,0,0,0,0,55,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 Na6 7. g4 {E71: King's Indian: 4 e4 d6 5 h3.} e5 8. Nge2 exd4 9. Nxd4 {White is slightly better.} Re8 10. f3 c6 11. Qd2 $1 {[#]} Nc7 $146 (11... d5 $14) ({Predecessor:} 11... d5 12. cxd5 cxd5 13. Bb5 Bd7 14. g5 Nh5 15. Nxd5 Rc8 16. Bxa6 bxa6 17. Rd1 Be6 {½-½ (41) Zawadka,Z (2217)-Ledford,S (2244) ICCF email 2018}) 12. O-O-O $16 d5 13. cxd5 cxd5 14. Ndb5 (14. Qh2 $16) 14... Bd7 (14... a6 $11 15. Nxc7 Qxc7) 15. Nd6 $14 {[%mdl 64] [#] Double Attack} ({Much weaker is} 15. Nxa7 b5 $15) 15... Re7 $1 16. Nxb7 (16. g5 $14 Nh5 17. Nxb7) 16... Qb8 $11 17. Nc5 {Black must now prevent e5!} dxe4 (17... Bc6 $1 $11 {remains equal.}) 18. fxe4 (18. Qd6 $16 Re6 19. Nxe6 (19. Nxd7 Rxd6 20. Nxb8 Rxd1+ 21. Nxd1 Rxb8 $14) 19... Bxe6 20. Bf4) 18... Bc6 $14 {[%cal Rf6e4]} 19. Bd4 {next Qf2 is good for White.} Qe8 ({Black should try} 19... Ne6 $11 20. Nxe6 Rxe6) 20. Bg2 (20. Bc4 $1 $14) 20... Rd8 {[#]} (20... Ne6 $11 21. Nxe6 Rxe6) 21. Qf2 $1 $16 Nd7 ({Better is} 21... Ne6 22. Bxf6 Rxd1+ 23. Rxd1 Bxf6) 22. Bxg7 Kxg7 23. Qd4+ Kg8 $1 24. Kb1 Rb8 25. Nxd7 Rxd7 26. Qf6 ({Much worse is} 26. Qxa7 Nb5 $15) 26... Nb5 27. Ka1 Nxc3 28. Qxc3 Re7 29. h4 Bxe4 30. Bxe4 Rxe4 31. Rhe1 Rxe1 32. Rxe1 $11 {[%mdl 4096] Endgame KQR-KQR} Qd7 33. h5 Rc8 34. Qb4 Qd5 (34... Re8 $11) 35. a3 (35. h6 $1 $14 f6 36. a3) 35... a5 {The position is equal.} 36. Qf4 g5 $1 {[%cal Rg5f4]} 37. Qf6 {Intending h6 and mate.} Qd2 38. Rb1 {Hoping for h6.} Rc1 39. h6 {[%csl Gh6][%cal Rf6g7]} Rxb1+ 40. Kxb1 {[%csl Gh6][%cal Rf6g7] KQ-KQ} Qd1+ 41. Ka2 {[%csl Gh6][%cal Rf6g7]} Qd5+ 42. Kb1 {[%csl Gh6][%cal Rf6g7]} Qd1+ 43. Ka2 {[%csl Gh6][%cal Rf6g7]} Qd5+ 44. b3 {[%csl Gh6][%cal Rf6g7]} Qd2+ 45. Kb1 {[%csl Gh6][%cal Rf6g7]} Qd1+ 46. Kb2 {[%csl Gh6][%cal Rf6g7]} Qd2+ 47. Kb1 {[%csl Gh6][%cal Rf6g7]} Qd1+ 48. Kb2 {Accuracy: White = 75%, Black = 77%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.5"]
[White "Haug, Johannes"]
[Black "Mihajlov, Sebastian"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2431"]
[BlackElo "2389"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,31,26,27,5,25,0,0,0,0,-12,-10,-27,-37,-29]} 1. Nf3 d5 2. g3 c6 3. Bg2 Bg4 4. O-O Nd7 5. d3 Ngf6 6. Nbd2 e5 7. e4 dxe4 8. dxe4 Bc5 9. h3 Bh5 10. Qe1 O-O 11. Nh4 {A07: Réti Opening: New York and Capablanca Systems.} Re8 12. Nc4 {[%cal Bd2c4,Bc4e3,Be3f5][%mdl 32]} b5 13. Ne3 {[#]} Bf8 $146 ({Predecessor:} 13... Nb6 14. Nef5 Nfd7 15. b3 a5 16. Be3 Bb4 17. Bd2 Bxd2 18. Qxd2 Nf8 19. Qc3 Qc7 {1-0 (71) Benidze,D (2475)-Atakisi,U (2378) Izmir 2016}) 14. b3 Nc5 15. Nef5 Qc7 16. a4 {White took control after the opening.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.6"]
[White "Djurhuus, Rune"]
[Black "Nordquelle, Daniel"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2437"]
[BlackElo "2284"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,73,10,-6,6,-17,5,0,0,-10,0,0,0,0,0,0,0,0,0,0,7,8,10,7,10,4,6,10,14,0,60,55,143,130,170,166,140,147,156,141,144,131,223,202,178,178,252,248,679,185,714,675,1595,1378,2387,1880,1880,1787,1539,732]} 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 Nbd7 5. b3 b6 6. O-O Bb7 7. Bb2 Bd6 8. d4 O-O 9. Nbd2 Qe7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 10. Qc2 Rfd8 11. Ne5 c5 {The position is equal.} 12. e4 {[#]} (12. cxd5 {with more complications.} Nxd5 13. Nec4 Nb4 14. Qc3 Bxg2 15. Kxg2 Nf6 16. Nxd6 Qxd6 17. Nf3) 12... dxe4 $146 ({Predecessor:} 12... cxd4 13. Nxd7 Qxd7 14. exd5 exd5 15. Bxd4 dxc4 16. Bxb7 Qxb7 17. Nxc4 Be7 18. Rad1 Ne4 {0-1 (58) Vojinovic,L (1963)-Jovanovic,B (2155) Vrnjacka Banja 2012}) 13. Nxe4 cxd4 14. Nxd7 Rxd7 15. Nxf6+ Qxf6 16. Bxb7 Rxb7 17. Qe4 {[%mdl 64] Double Attack} Rab8 18. Bxd4 Qe7 19. Rfd1 Rd7 20. Rd3 Rbd8 21. Rad1 $40 {[%mdl 128] Black needs to defend precisely.} f6 22. Qc6 {aiming for Bc3.} Rc7 (22... Bb4 $11 23. Qe4 e5) 23. Qb5 Rcc8 (23... Ba3 $14) 24. Be3 $16 Kf8 25. a4 Qc7 26. b4 Be7 {With the idea ...Rxd3.} 27. Rxd8+ $1 Rxd8 28. Rxd8+ Qxd8 (28... Bxd8 $16 29. c5 g5) 29. a5 $18 Qd1+ 30. Kg2 Qb1 {[#]} (30... Qd6 {was necessary.} 31. h4 (31. axb6 axb6 32. Bxb6 Qxb4 $14) 31... Bd8) 31. Qc6 $1 ({Stronger than} 31. axb6 Qe4+ 32. Kg1 Qb1+ 33. Kg2 Qe4+ 34. Kh3 axb6 $11) 31... Qxb4 $2 {[#]} (31... bxa5 32. bxa5 a6) 32. a6 $2 (32. Bxb6 $1 {[%mdl 512]} Qd6 (32... axb6 33. a6) 33. Qc8+ Kf7 34. Bxa7) 32... Bd8 $2 (32... Qd6 33. Qc8+ Bd8) 33. c5 {Strongly threatening cxb6.White is clearly winning.} Qc4 34. Qa8 {[%mdl 64] Double Attack} bxc5 35. Qxd8+ Kf7 36. Qc7+ Kg6 37. Qc6 {Accuracy: White = 86%, Black = 50%.} (37. h4 $142) 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.7"]
[White "Sjoberg, Isak"]
[Black "Storme, Isak"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2189"]
[BlackElo "2379"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,50,18,8,14,64,0,19,0,-14,-31,-12,-142,-148,-127,-133,-141,-147,-132,-164,-219,-203,-194,-208,-260,-270,-355,-354,-498,-490,-627,-626,-621,-604]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Qd2 Nbd7 10. O-O-O Rc8 11. Kb1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Qc7 12. g3 (12. Nd5 $14 Nxd5 13. exd5) 12... b5 13. Qf2 {The position is equal.} Be7 14. h3 Qb7 {[#]} 15. a3 $146 (15. Na5 $11 {keeps the balance.} Qc7 16. Nb3) ({Predecessor:} 15. Na5 Qc7 {½-½ (17) Sax,G (2570)-Leko,P (2635) Budapest 1997}) 15... Rxc3 $17 16. bxc3 d5 17. Bg2 dxe4 18. fxe4 O-O 19. Kb2 (19. g4 $142) 19... a5 {[%mdl 1024] Black has strong compensation.} 20. g4 ({Don't blunder} 20. Nxa5 $2 Qa6 $19) 20... Rc8 21. g5 Ne8 ({Don't do} 21... Nxe4 22. Qe1 $19) 22. Rhf1 Qc6 23. Rxd7 (23. Rd3 {keeps fighting.} Nd6 24. Ka1) 23... Qxd7 $19 {Black is clearly winning.} 24. Nc5 Bxc5 25. Bxc5 Qc7 {Accuracy: White = 36%, Black = 93%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.8"]
[White "Tryggestad, Andreas Garberg"]
[Black "Kvaloy, Aksel Bu"]
[Result "0-1"]
[ECO "A28"]
[WhiteElo "2363"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,78,31,27,27,34,34,20,30,34,34,34,34,31,46,43,81,66,75,63,79,63,68,0,0,0,0,0,88,78,191,200,313,317,373,364,356,353,574,525,728,709,739,722,655,404,712,179,156,135,310,0,0,-393,-392,-352,-239,-231,-223,-29989,-29989,-29992,-29987,-29987,-29988,-29988,-29989,-29989,-29990]} 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. e3 Bb4 5. Qc2 O-O 6. Nd5 a5 7. a3 Bc5 {A28: English Opening: Four Knights Variation.} 8. Ng5 {Threatening mate with Nxf6+.} g6 9. Nxf6+ Qxf6 {The position is equal.} 10. Ne4 Qe7 11. b3 Ba7 12. Bb2 d6 13. h4 {[#]} h6 $146 ({Predecessor:} 13... Nd8 14. O-O-O c6 15. f4 d5 16. Ng3 Bc5 17. Bxe5 Bxa3+ 18. Kb1 a4 19. h5 axb3 20. Qxb3 {½-½ (31) Demuth,A (2548)-Sengupta,D (2594) Teplice 2017}) 14. Be2 f5 15. Nc3 Qf7 16. O-O-O Be6 17. Bd3 ({White should try} 17. Nb5 $14) 17... a4 $11 18. Nxa4 b5 19. cxb5 Na5 (19... Nd4 $1 $11 {remains equal.} 20. exd4 Bxb3) 20. b4 $16 Nb3+ (20... Nc4 $16) 21. Kb1 $18 e4 (21... h5 $142 22. Nc3 Rab8) 22. Be2 Bb6 {[#]} 23. Nc3 $1 (23. Nxb6 cxb6 24. Qc6 Rfd8 $16) 23... Rfc8 {[#]} 24. g4 $1 d5 $2 (24... Bd4 {keeps fighting.} 25. f3 (25. exd4 Nxd4 26. Qc1 Nb3 $11) 25... exf3) (24... fxg4 25. Nxe4) 25. h5 d4 26. hxg6 Qd7 {[#]} 27. Nxe4 $1 fxe4 28. Rxh6 Qd5 (28... c5 $142) 29. Qc6 $2 (29. Rh5 Na1 30. Bxa1 (30. Rxd5 Nxc2 31. Re5 {[%mdl 64] Double Attack} Bb3 $11) 30... Qb3+ 31. Qxb3 Bxb3 32. Rdh1) 29... Qxc6 30. bxc6 Rf8 $2 {[#]} (30... Kg7 $16 {was worth a try.} 31. Rdh1 Bg8) 31. Rdh1 $2 (31. g7 $1 $18 Rxf2 (31... Kxg7 32. Rxe6) 32. Rxe6) 31... Rxf2 $11 {...Kg7 is the strong threat.} 32. Bd1 $2 {[%mdl 8192]} (32. Rh8+ $11 {and White has nothing to worry.} Kg7 33. Rxa8 Rxe2 34. a4) 32... Nxd2+ $19 33. Ka1 {aiming for Rh8+.} Nc4 34. Bb3 {Strongly threatening Rh8+.} Kg7 35. exd4 $2 (35. Rh7+ $19 Kxg6 36. R7h6+ Kg5 37. R1h5+ Kxg4 38. Bd1+ Rf3 39. Rxe6 Kxh5 40. Rxe4) 35... Rxb2 {Black mates.} 36. Bxc4 Rxb4 37. Rh7+ {[#]} Kf6 $1 38. g5+ Kxg5 39. R7h5+ {[#]} Kf6 $1 {Never resign too early! Accuracy: White = 66%, Black = 47%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.9"]
[White "Vestby-Ellingsen, Mads"]
[Black "Pena Riasco, Alexander"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2351"]
[BlackElo "2115"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,24,62,45,68,51,64,66,85,84,102,100,102,91,126,131,132,113,123,104,204,248,283,287,275,283,301,299,377,328,244,236,243,234,515,515,511,516,486,478,488,501,593,606,606,606,606,606,583,581,567,561,560,554,673,672,607,546,840,840,833,833,833,831,1955,1955,1806,1822,1772,1691,29975,29974,12837,6341]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 c6 6. Bc4 Bf5 7. Bd2 e6 8. Nd5 Qd8 9. Nxf6+ gxf6 10. O-O {B01: Scandinavian Defence.} Nd7 11. Nh4 {was the old line (11.Re1).} Bg6 12. c3 {White is slightly better.} Qc7 13. Re1 Bd6 14. g3 O-O-O 15. b4 {[%cal Bb2b4,Bb4b5][%mdl 32] [#]} e5 $146 ({Predecessor:} 15... f5 16. Qf3 Rdg8 17. Ng2 e5 18. b5 e4 19. Qe2 c5 20. Kh1 Nb6 21. Bf4 Rd8 22. dxc5 Qxc5 {1-0 (58) Stefansson,H (2523)-Gorovets,A (2517) chess.com INT 2018}) 16. Bf1 Kb8 17. Qb3 f5 18. a4 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} f6 (18... f4 $16) 19. b5 $18 c5 20. a5 Qc8 21. a6 b6 22. Qd5 {[#] Threatens to win with Bg2.} Nf8 23. dxe5 ({Resist} 23. Bg2 e4 $18) ({Not} 23. Nxg6 hxg6 24. Qf7 (24. Bg2 e4 $16) 24... Qd7 $14) 23... Bxe5 24. Qf3 Rxd2 25. Bg2 {Qa8+ is the strong threat.} Nd7 $2 {[#]} (25... Kc7) 26. Qa8+ Kc7 27. Qxa7+ Kd8 28. Rad1 Rxd1 29. Rxd1 Ke7 30. Bc6 {[%cal Rd1d7]} Rd8 31. Rxd7+ Rxd7 32. Qxd7+ Qxd7 33. Bxd7 {[%mdl 4096] Endgame KBB-KBN} Bb8 34. Bxf5 Bf7 35. Be4 Be8 36. Nf5+ Kd8 37. Nd6 Bd7 {and the idea ...Kc7 leaves Black hopeful.} 38. Bf5 Kc7 39. Bxd7 Kxd6 {KB-KB} 40. Be8 Kd5 41. Bf7+ Ke4 42. c4 h6 43. Kg2 f5 44. f4 Ke3 45. Kh3 {Black got outplayed after the opening. Accuracy: White = 100%, Black = 50%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.12"]
[Round "3.10"]
[White "Aarnes, Eirik"]
[Black "Pantzar, Milton"]
[Result "0-1"]
[ECO "C68"]
[WhiteElo "1902"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,82,16,30,13,0,0,0,0,0,0,0,0,0,2,0,0,0,-11,14,15,8,8,20,19,18,6,8,14,4,18,33,-77,-76,-76,-76,-80,-71,-85,-85,-98,-82,-92,-96,-151,-156,-159,-135,-137,-122,-135,-125,-111,-122,-224,-210,-233,-233,-226,-226,-1196,-252,-5214,-247,-6223,-6179,-5289,-2238]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O Bd6 6. d4 exd4 7. Qxd4 f6 8. Be3 Ne7 9. Nbd2 Be6 10. Qc3 {C68: Ruy Lopez: Exchange Variation, sidelines.} Qd7 11. Nd4 Bf7 12. Nc4 {The position is equal.} c5 {And now ...Bxc4 would win.} 13. Nxd6+ cxd6 14. Ne2 {[#]} O-O $146 ({Predecessor:} 14... Qc6 15. Rad1 O-O 16. Ng3 Rac8 17. Rfe1 d5 18. exd5 Nxd5 19. Qd2 Rfe8 20. f3 Qb6 {1-0 (49) Himanshu,S (2420)-Rajesh,V (2309) Dieren 2018}) 15. Nf4 b6 16. Rfd1 Rad8 17. Qd3 Qb7 18. c4 b5 19. b3 {[%cal Bb2b3,Bb3c4,Bc4d5][%mdl 32]} bxc4 20. bxc4 Qb4 21. Nd5 Nxd5 22. cxd5 Bg6 23. f3 f5 24. Rab1 (24. exf5 $1 $14 {stays ahead.} Rxf5 25. Qxa6) 24... fxe4 {Black converts the advantage convincingly.} 25. Qxa6 Qc3 26. Rb3 Qf6 27. f4 Bh5 28. Rdb1 Ra8 29. Qc4 Rxa2 {White must now prevent ...Bf3!} 30. Rb7 (30. Rb8 $142 Ra8 31. Rxf8+ Qxf8 32. h3) 30... Re2 $17 31. Qxe4 Bg6 32. Qf3 Rxe3 $40 {[%mdl 128] Black goes for the king.} 33. Qxe3 {Threatens to win with R1b6.} Bxb1 34. Rxb1 Qxf4 {[%mdl 4096] Endgame KQR-KQR} 35. Qe6+ (35. Qxf4 $17 Rxf4 36. Rb6) 35... Kh8 $19 36. h3 h6 37. Rb7 {[#]} Kh7 $1 38. Rd7 $2 (38. Qe1) 38... Rf6 $2 (38... Ra8 {( -> ...Ra1+)} 39. Qe1 Qd4+ {[%mdl 64] Double Attack} 40. Kh2 Ra1 41. Rxg7+ Qxg7 42. Qe4+ Kh8 43. Qe8+ Qg8) 39. Qe7 $2 (39. Qe2) 39... Rg6 $2 (39... Qd4+ 40. Kh2 Rf1 41. Qxd6 Rb1 42. Rxg7+ Qxg7) 40. Qe8 $2 (40. Qe2) 40... Qc1+ 41. Kh2 {[#]} Qc2 $1 {Accuracy: White = 56%, Black = 80%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.1"]
[White "Notkevich, Benjamin Arvola"]
[Black "Johansson, Linus"]
[Result "0-1"]
[ECO "E27"]
[WhiteElo "2476"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,0,15,9,26,19,34,21,23,32,22,14,27,0,0,0,0,-234,-182,-180,-59,-164,-147,-161,-118,-212,-223,-212,-227,-284,-164,-200,-118,-118,-118,-113,-177,-179,-126,-122,-125,-198,-198,-197,-133,-146,0,-198,-202,-202,-190,-1837,-1677,-5983]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 O-O 5. a3 Bxc3+ 6. bxc3 d6 7. e4 e5 8. Bd3 {E27: Nimzo-Indian: Sämisch: 5...0-0 6 f3.} Nh5 {Black wants to play ...Qh4+.} 9. Ne2 Qh4+ 10. g3 {White is slightly better.} Qh3 11. Kf2 $1 Nc6 12. Be3 {[#]} Na5 $146 ({Predecessor:} 12... b6 13. Qd2 Qd7 14. g4 Nf6 15. Ng3 Na5 16. Qe2 Qa4 17. c5 bxc5 18. dxe5 Nd7 19. exd6 cxd6 {1-0 (46) Osmak,I (2375)-Volotovsky,K (2055) Mykolaiv 2018}) 13. Rb1 b6 14. g4 {[#] dxe5 is the strong threat.} Bxg4 $1 {[%mdl 512]} 15. Ng3 $2 (15. fxg4 $11 {and White stays safe.} Nf6 16. Rg1) 15... Bc8 16. Qd2 h6 (16... f6 $1 $19 17. Nxh5 Qxh5) 17. Rbg1 ({White should play} 17. Bxh6 $1 $15 gxh6 18. Bf1) 17... Kh7 18. Ke1 Ba6 19. Nf5 (19. Nxh5 $17 {was called for.} Qxh5 20. Qe2 (20. Qg2 Qg6 $17)) 19... Nxc4 $19 20. Bxc4 Bxc4 21. Qf2 exd4 (21... Be6 $142 22. Ng3 f5 23. Nxh5 Qxh5) 22. cxd4 Be6 (22... Rae8 $19 {And now ...g6 would win.} 23. Rg4 Rxe4 $1 {[%mdl 512]} 24. Rxg7+ Nxg7 25. fxe4 Nxf5 26. Qxf5+ Qxf5 27. exf5 Kg7 28. Rg1+ Kf6 29. Bxh6 Re8+ 30. Kd2 Kxf5) 23. Nxg7 $17 Nxg7 24. Rg3 Qh5 25. Rhg1 Nf5 (25... Rg8 $19 26. d5 Bxd5 $1 {[%mdl 512]}) 26. exf5 Bxf5 {Threatens to win with ...Rae8.} ({But not} 26... Qxf5 $2 27. Rg7+ Kh8 28. Qh4 $1 $18 {[%mdl 512]}) 27. Rg5 (27. Qg2 $17 Qh4 28. Kf1 Bd3+ 29. Ke1) 27... hxg5 $19 28. Rxg5 Qh3 (28... Qh6 $19 29. Rxf5 Rfe8) 29. Rg3 $17 {[#]} Qh5 (29... Qh4 $1 $17 {[%cal Rh4f6]} 30. Rg7+ Kxg7 31. Qxh4 Rh8) 30. Rg5 $19 {[#]} Qh6 $1 31. Rxf5 Rae8 32. f4 $2 (32. Kd2 Rxe3 33. Qxe3) 32... Qh3 {[%mdl 64] Double Attack} 33. Qe2 {Accuracy: White = 44%, Black = 57%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.2"]
[White "Tari, Aryan"]
[Black "Mihajlov, Sebastian"]
[Result "1-0"]
[ECO "C70"]
[WhiteElo "2634"]
[BlackElo "2389"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,73,17,24,25,18,20,0,25,35,37,15,26,15,34,0,12,0,258,0,-15,-4,0,0,0,0,0,0,0,0,8,0,8,8,8,8,8,0,0,0,8,8,8,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,233,251,690,704,5593,2442]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 f5 5. d3 fxe4 6. dxe4 Nf6 7. O-O d6 {C70: Ruy Lopez: 3...a6 4 Ba4, Norwegian and Delayed Schliemann.} 8. Nc3 Be7 9. Nd5 b5 {The position is equal.} 10. Bb3 {And now Ng5 would win.} Na5 $1 {[#]} 11. Be3 $146 ({Predecessor:} 11. Ng5 Nxb3 12. axb3 c6 13. Nxf6+ Bxf6 14. Qh5+ g6 15. Qh6 Qe7 16. f4 Bg7 17. Qh4 {1-0 (55) Yatsishin,I-Kiuchukov,M Ustron 1994}) 11... Nxb3 12. axb3 Bb7 13. c4 Nxd5 14. exd5 c6 $2 {[%mdl 8192] [#]} (14... O-O $11) 15. Qd3 $2 (15. Nxe5 $1 $18 {[%mdl 512]} dxe5 16. Qh5+ {[%mdl 64] Double Attack} g6 17. Qxe5) 15... cxd5 $11 16. cxd5 O-O 17. Nd2 Rc8 18. Ne4 h6 19. f3 Qd7 20. Rfd1 Qf5 21. Kh1 Qf7 22. Bb6 Qg6 23. Ba5 Bg5 24. Bb4 Rfd8 25. Qe2 Be7 26. Rd3 Rd7 27. Qf2 Bd8 28. h3 Ra8 29. Ba5 Bxa5 30. Rxa5 Rc8 31. Ra1 Rdc7 32. Rd2 Rd7 33. Qb6 Kh8 34. b4 Rc4 $2 {[#]} (34... Kh7 $11) 35. Nc5 $1 $18 {[%cal Rc5d7][%mdl 576] Double Attack, Pin} Qg5 $2 (35... Qf7) (35... dxc5 36. Qxg6) 36. Nxd7 Qxd2 {[#]} 37. Qd8+ $1 {Accuracy: White = 93%, Black = 79%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.3"]
[White "Nilsen, Joachim Birger"]
[Black "Urkedal, Frode Olav Olsen"]
[Result "1/2-1/2"]
[ECO "E35"]
[WhiteElo "2411"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,45,5,16,19,14,50,3,16,20,14,0,9,1,22,0,0,0,1,0,27,0,0,11,53,59,68,51,73,14,21,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. Bg5 h6 7. Bh4 g5 {E35: Nimzo-Indian: Classical: 4...d5 5 cxd5 exd5.} 8. Bg3 h5 {8...Nc6 gains popularity.} 9. e3 (9. a3 $5 {[%cal Ra3b4]} Bxc3+ 10. Qxc3 $11) 9... h4 10. Be5 Nc6 11. Bb5 O-O 12. Bxf6 Qxf6 13. a3 Bf5 14. Bd3 Bxc3+ 15. bxc3 Ne7 16. h3 c5 17. Nf3 Rac8 18. Bxf5 Nxf5 {[#]} 19. Qa4 $146 ({Predecessor:} 19. Qb3 Rfd8 20. Qxb7 Rb8 21. Qxa7 cxd4 22. cxd4 Ra8 23. Qc7 Qa6 24. Qe5 Qd3 25. Rd1 Qc3+ 26. Nd2 Qd3 27. Nb1 Qc2 28. O-O Re8 29. Qxd5 {1-0 (29) Perez Ponsa,F (2566)-Pichot,A (2598) Buenos Aires 2019}) 19... Nd6 20. O-O (20. Qxa7 $16 Rc6 21. O-O) 20... Ne4 $11 {The position is equal.} 21. dxc5 Rxc5 22. Qxa7 Qa6 23. Qxa6 {Accuracy: White = 78%, Black = 79%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.4"]
[White "Holm, Kristian Stuvik"]
[Black "Vestby-Ellingsen, Mads"]
[Result "1/2-1/2"]
[ECO "A35"]
[WhiteElo "2462"]
[BlackElo "2351"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,119,13,4,0,0,0,0,0,0,0,0,0,0,0,0,0,4,2,8,12,14,2,2,4,4,6,3,0,5,0,0,-6,0,0,29,12,24,16,22,22,32,16,16,-14,-12,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-1,0,0,0,0,0,-2,0,-14,-4,-6,0,-12,-12,-12,0,-27,-8,-16,-16,-35,-13,-32,0,0,0,-1,0,0,28,28,28,28,28,28,28,28,28,28,39,39,39,0]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Qb3 e6 9. Bb5 $1 {9.Bb5 is better than 9.Bg5.} Bg7 10. Bg5 {A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3.} Qb6 11. Qa3 f6 $1 {[#] Strongly threatening ...Nxc3.} 12. Nxd5 {The position is equal.} exd5 13. Bxc6+ $1 bxc6 14. O-O Kf7 15. Bf4 Re8 16. Bd6 {[#]} Bh6 $146 ({Predecessor:} 16... Qa6 17. Qxa6 Bxa6 18. Rfc1 Bb7 19. Rc3 Re2 20. Rb3 Ba6 21. Bc5 g5 22. h3 Kg6 {½-½ (41) Nepomniachtchi,I (2718)-Leko,P (2720) Sochi 2012}) 17. Rfe1 Ba6 18. Qc3 Qb7 19. Nd2 Qd7 20. Bg3 Rxe1+ 21. Rxe1 Re8 $132 {[%mdl 2048] Black has counterplay} 22. Nb3 Rxe1+ 23. Qxe1 {[#] Threatens to win with Nc5.} Bf8 24. Qc3 Bb5 25. h3 Qe7 26. Qa5 Qd7 27. a4 Bd3 28. Qc3 Ba6 29. Na5 c5 {[%cal Bc6c5,Bc5c4][%mdl 32]} 30. Nb3 c4 31. Qa5 Bb7 32. Nc5 Bxc5 33. Qxc5 a5 34. Qxa5 Bc6 35. Qa6 Bxa4 36. Qa8 Kg7 37. h4 Bc6 38. Qb8 Qb7 39. Qd6 Qd7 40. Qc5 h6 41. Bd6 Qe8 42. Bf4 g5 43. Be3 Qd7 44. f3 gxh4 45. Kf2 Qb7 46. Bc1 Qd7 47. Qa3 Qe6 48. Qa7+ Bd7 49. Qc7 Qf5 {aiming for ...Qc2+.} 50. Bd2 h3 51. g4 Qe6 52. Qg3 Qf7 (52... h5 {looks sharper.} 53. Qxh3 Be8 54. Qh4 hxg4 55. Qh6+ Kg8) 53. Qxh3 h5 (53... Qg6 {seems wilder.} 54. Qh4 Be8 55. Qh2 Bf7 56. Qh4 h5) 54. Qxh5 Qxh5 55. gxh5 $11 {KB-KB} Be8 56. h6+ Kg6 57. Bf4 Bd7 58. Ke3 Bf5 59. Kd2 Bh3 60. Ke3 {Accuracy: White = 93%, Black = 93%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.5"]
[White "Kaasen, Tor Fredrik"]
[Black "Haldorsen, Benjamin"]
[Result "0-1"]
[ECO "A43"]
[WhiteElo "2401"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,81,65,75,95,102,113,34,116,118,116,111,116,105,129,81,108,87,95,81,81,81,81,81,98,96,102,88,88,101,118,88,108,77,78,73,73,56,84,-36,-30,-50,-30,-111,-126,-123,-76,-91,0,0,0,0,0,3,65,81,319,292,235,241,397,-185,-192,-233,0,0,0,-1055,-1029,-2062,-2039,-29986,-29987,-29987]} 1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 c5 5. d5 Bxc3+ 6. bxc3 e5 {A43: Schmid Benoni.} 7. Bd3 Qe7 {[#]} 8. h4 $146 (8. Ne2 $16) ({Predecessor:} 8. Ne2 f5 9. exf5 gxf5 10. Ng3 Qf7 11. Qc2 Ne7 12. Rb1 Qg6 13. O-O O-O 14. f4 {0-1 (70) Fuhrmann,D (2286)-Telljohann,S (2421) Germany 2005}) 8... Nf6 ({Black should try} 8... f5 $1 $14) 9. Ne2 $16 Nbd7 10. Ng3 h5 11. Bg5 Nf8 12. Qa4+ Qd7 13. Qa3 N8h7 14. Bd2 O-O 15. Bh6 Re8 16. f3 a6 17. Qb2 Kh8 18. a4 Ng8 19. Be3 Qd8 20. Qc2 Rf8 21. Kd2 Rb8 22. Raf1 Ngf6 23. Be2 Qe7 24. f4 (24. Bh6 $16) 24... exf4 $15 25. Bxf4 Bg4 26. e5 (26. Bf3 $1 $11) 26... dxe5 $17 27. Bh6 Rfe8 28. Bg5 Nxg5 (28... e4 $17 29. Rxf6 Qe5) 29. hxg5 $11 Nh7 30. Ne4 {Threatens to win with Bxg4.} Bxe2 31. Kxe2 Kg7 (31... Nxg5 $11 32. g4 Nxe4 33. Qxe4 h4) 32. g4 $14 hxg4 $2 (32... Nxg5 $16 33. gxh5 Nxe4 34. Qxe4 Rf8) 33. d6 $18 Qe6 {[#]} 34. Ke1 $1 {Qh2 would kill now.} g3 $2 {[#]} (34... Rh8 {was called for.}) 35. Rf6 $4 {[%mdl 8192]} (35. Qg2 $1 $18 {is the narrow road to win. White threatens Rxh7+! and mate.} Rh8 36. Qxg3) 35... Qxc4 $19 {White must now prevent ...Nxg5!} (35... Nxf6 $2 {loses.} 36. gxf6+ Qxf6 37. Nxf6 $18) 36. d7 Re7 $2 ({Black should play} 36... Rh8 $19 {Strongly threatening ...Nxg5!} 37. Rff1 Qd5) 37. Rd6 $11 Rd8 38. Nf6 $2 {[%mdl 8192]} (38. Rxh7+ $11 Kxh7 39. Qg2) 38... Nxg5 $19 39. Rf1 e4 {( -> ...Nf3+)} 40. Qd2 Nf3+ 41. Rxf3 {Accuracy: White = 58%, Black = 66%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.6"]
[White "Djurhuus, Rune"]
[Black "Kvaloy, Aksel Bu"]
[Result "1/2-1/2"]
[ECO "A09"]
[WhiteElo "2437"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,158,-23,-16,-30,-19,-43,-22,-41,-20,-23,73,72,67,77,70,70,64,72,101,69,111,121,138,119,160,83,81,79,112,22,74,34,28,30,28,29,29,18,38,14,51,11,15,-44,-44,-51,-44,-47,-37,-44,-35,-62,-2,-2,-4,-1,-33,-47,0,0,29,0,0,0,0,-18,-16,-20,-8,-8,-8,-12,-14,-11,-8,-8,-8,-8,-12,-13,0,-8,-8,-8,-8,-8,-10,-8,0,0,0,0,0,-2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,15,15,15,15,15,15,15,15,15,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. c4 d4 3. g3 Nc6 4. d3 e5 5. Bg2 g6 6. O-O Bg7 7. Na3 Nge7 8. Nc2 a5 9. b3 {[%cal Bb2b3,Bb3b4,Bb4b5][%mdl 32]} O-O 10. a3 {A09: Réti Opening: 1 Nf3 d5 2 c4.} b6 {[#]} 11. Bg5 $146 ({Predecessor:} 11. Rb1 Bb7 12. b4 Qc8 13. b5 Nd8 14. a4 Ne6 15. Ba3 Re8 16. e3 dxe3 17. Nxe3 e4 18. dxe4 Bxe4 {1-0 (41) Bauer,C (2622)-Delorme,A (2475) Cap d'Agde 2010}) 11... Bb7 12. b4 h6 13. Bd2 Kh7 (13... Qd7 $11) 14. b5 $16 Nb8 15. Ng5+ hxg5 16. Bxb7 Ra7 17. Bg2 g4 18. Bc1 Nd7 19. e3 Nc5 20. exd4 exd4 21. Ra2 (21. Qxg4 $142 Nf5 22. Rd1) 21... c6 22. bxc6 Qc8 23. Bf4 (23. Ne1 $16) 23... Nxc6 (23... Na4 $1 $11 {remains equal.}) 24. Bd6 Re8 25. Bxc5 bxc5 26. Bxc6 Qxc6 27. Qxg4 Rae7 28. Rb2 Qa4 (28... a4 {keeps more tension.} 29. Qd1 Rb7 30. Rxb7 Qxb7 31. h4 Kg8) 29. Qd1 Re2 30. Ne3 ({Better is} 30. f4 $11) 30... Qxd1 $15 31. Nxd1 Rxb2 $1 32. Nxb2 {[%mdl 4096] Endgame KRB-KRN} Rb8 33. Na4 Bf8 $1 34. Re1 Bd6 ({Black should try} 34... Rb3 $1 $15 35. Re8 Kg7) 35. Kf1 $11 Rb3 36. Ke2 Rxa3 37. Nb6 f5 38. Rb1 a4 39. Nc8 Bf8 {The position is equal.} 40. Rb7+ Kh6 41. Ne7 Bxe7 42. Rxe7 {KR-KR} Ra2+ 43. Kf3 Rd2 44. Rc7 Rxd3+ 45. Ke2 Rc3 46. Rxc5 a3 47. Ra5 Kg7 48. h4 Kf7 49. f3 Re3+ 50. Kf2 Rb3 51. Ke2 $1 Ke6 52. Ra6+ Kf7 53. c5 Re3+ 54. Kf2 Rc3 {[#] Hoping for ...Rc2+.} 55. Ke2 Rxc5 56. Rxa3 Rc2+ 57. Kd3 Rg2 58. Kxd4 Rxg3 59. Ke5 Kg7 60. h5 gxh5 61. Kxf5 h4 62. Ra7+ Kf8 63. f4 Rb3 64. Rh7 Rb6 65. Kg5 h3 66. Rxh3 Ra6 67. Rh7 Kg8 68. Rd7 Kf8 69. Kf5 Rb6 70. Ke5 Ra6 71. Rd6 Rxd6 72. Kxd6 {[#] White threatens Ke6 and mate. KP-K} Kf7 73. Ke5 {Threatening mate with Kf5.} Ke7 74. f5 Kf7 75. f6 Kf8 76. Kf5 Kf7 77. Kg5 Kf8 78. Kg6 {f7 would kill now.} Kg8 79. f7+ Kf8 80. Kf6 {Accuracy: White = 83%, Black = 82%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.7"]
[White "Storme, Isak"]
[Black "Haug, Johannes"]
[Result "0-1"]
[ECO "B12"]
[WhiteElo "2379"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,50,16,0,32,30,38,18,43,31,23,0,16,22,41,0,0,-17,0,-9,-22,-75,-60,-79,-79,-160,-158,-164,-153,-159,-159,-216,-214,-249,-249,-256,-253,-347,-347,-526,-525,-29992,-29993]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nd2 e6 5. Nb3 Nd7 6. Nf3 Ne7 {B12: Caro-Kann: Advance Variation.} 7. Be2 h6 $1 {[%mdl 4] now scores much better than the old 7...Nc8.} 8. O-O g5 {The position is equal.} 9. Ne1 Qc7 10. Bh5 c5 11. c3 {[#]} Rg8 $146 ({Predecessor:} 11... Bg6 12. f4 c4 13. Nd2 gxf4 14. Rxf4 Bg7 15. Nf1 O-O 16. Ng3 Kh7 17. Rh4 Qd8 {1-0 (53) Topalov,V (2749)-Nakamura,H (2774) Saint Louis 2017}) 12. Nxc5 ({White should play} 12. f4 $14) 12... Nxc5 $11 13. dxc5 Nc6 14. Nd3 d4 {White should prevent ...dxc3.} 15. cxd4 (15. c4 $11 {remains equal.}) 15... O-O-O $17 16. Be3 Nxd4 17. Qa4 (17. c6 $142 Nxc6 18. Be2) 17... Bxd3 18. Bxd4 {[#] aiming for Rfd1.} Bxf1 19. Rxf1 Bxc5 20. Bxc5 (20. Bc3 $17 {keeps fighting.}) 20... Qxc5 $19 21. Bxf7 Rgf8 22. Bxe6+ Kb8 23. b4 Qxe5 24. Bg4 (24. Qb3 {was necessary.}) 24... Rd2 {( -> ...Rdxf2!)} 25. f3 {[#]} Qe2 $1 {Accuracy: White = 37%, Black = 93%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.8"]
[White "Gjestemoen-VonHirsch, Andre"]
[Black "Ranaldi, Lucas"]
[Result "1/2-1/2"]
[ECO "C45"]
[WhiteElo "2077"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "167"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,166,0,0,-10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-24,57,58,55,62,61,59,62,53,106,107,214,200,177,160,172,170,158,153,155,102,105,104,128,122,148,136,271,129,181,187,183,173,169,174,191,189,176,146,174,143,138,66,139,142,136,133,112,110,228,228,356,375,367,340,355,0,185,0,340,227,191,0,0,0,20,0,0,0,258,0,169,169,327,288,335,0,0,0,300,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb6 6. Nc3 Nf6 7. Qe2 {C45: Scotch Game.} O-O 8. Bg5 h6 9. Bh4 a5 {White must now prevent ...g5.} 10. a4 Nd4 11. Qd3 Nxb3 12. cxb3 c6 13. O-O-O d5 14. exd5 cxd5 15. Nxd5 g5 16. Bg3 {[#]} (16. Qf3 $5 {[%cal Rd5f6]} Nxd5 17. Rxd5 Qc7+ 18. Bc4 $11) 16... Nxd5 $146 ({Better is} 16... Be6 $1 $11 17. Nxb6 Qxb6) ({Predecessor:} 16... Be6 17. Nxb6 Qxb6 18. Qb5 Rac8+ 19. Kb1 Qxb5 20. Bxb5 Bxb3 21. Rd6 Ne4 22. Rxh6 Rc2 {½-½ (29) Wang,H (2698)-Malakhov,V (2722) Danzhou 2017}) 17. Qxd5 $14 Qxd5 18. Rxd5 Be6 19. Rb5 Rac8+ 20. Kb1 Bc5 (20... Bd4 $14) 21. Rxb7 $16 Bd5 (21... Bb4 $16 {is a better defense.}) 22. Rb5 $1 $18 Rfd8 23. f3 ({But not} 23. Rxa5 Bb4 $16) 23... Bb4 24. Bc4 $1 {[%cal Rc4d5]} Bxc4 25. bxc4 Rxc4 26. Rb8 (26. Be5 $142) 26... Rxb8 $16 27. Bxb8 {[%mdl 4096] Endgame KRB-KRB} Rd4 28. Rc1 f6 29. Ba7 Rd2 (29... Rd5 $16) 30. Rc2 (30. Bc5 $1 $18 {is the precise move to win.}) 30... Rd1+ (30... Rd5 $16) 31. Ka2 $18 Rd5 32. Kb3 h5 33. Kc4 Rd7 34. Bd4 Kf7 35. Bc3 Rb7 36. Kd5 Rc7 37. Kd4 (37. h3 $1 $16) 37... h4 (37... Rd7+ $1 $14 38. Kc4 Rc7+ 39. Kb3 Rb7) 38. Re2 $16 Rd7+ 39. Kc4 Rc7+ 40. Kb3 Rb7 (40... Bxc3 $16 {was worth a try.} 41. bxc3 Rb7+ 42. Kc4 Rb1) 41. h3 $1 $18 Bxc3+ (41... Kg6 $142 42. Re4 Bd6+ 43. Kc2 Rc7) 42. Kxc3 {KR-KR} Rc7+ 43. Kb3 Rb7+ 44. Kc3 (44. Kc2 $142 Kg6 45. Re4) 44... Rc7+ 45. Kb3 $2 (45. Kd3) 45... Rb7+ $1 46. Ka3 Rd7 47. Re4 $2 (47. b3 $1 $18) 47... Rd3+ $11 48. b3 Kg6 49. Re2 Kf5 50. Re4 Rd2 $2 {[%mdl 8192]} (50... Kg6 $1 $11 {and Black has nothing to worry.}) 51. Rg4 $2 (51. b4 $18) 51... Rd3 $2 (51... Ke5 $11) 52. Kb2 $1 $18 Rd2+ $2 (52... Ke5 {was necessary.} 53. Re4+ Kd6) 53. Kc3 Ra2 {[#]} 54. Kc4 $2 (54. b4 $1 $18) 54... Rb2 $2 {[%mdl 8192]} (54... Ra3 $11 {and Black is okay.}) 55. Kc3 Ra2 $1 {[#]} 56. Kc4 $2 (56. b4 $1 $18 {[%cal Rb4a5]} Rxa4 57. b5) 56... Rb2 $11 {The position is equal.} 57. Kb5 Rxb3+ 58. Kxa5 {And now Rb4 would win.} Rb2 59. Rb4 Rxg2 {...Rh2 is the strong threat.} 60. Kb6 {Hoping for a5.} Rg3 61. a5 Rxf3 62. a6 Ra3 $1 ({Don't blunder} 62... Rxh3 $2 63. a7 $18) 63. Rb5+ Kf4 64. Ra5 Re3 65. a7 Re8 66. Kc6 f5 67. Kd7 Rh8 68. Ke6 Rh6+ 69. Kf7 Rh8 70. a8=Q Rxa8 71. Rxa8 g4 72. hxg4 fxg4 {KR-KPP} 73. Kg6 h3 (73... g3 $5 74. Ra4+ $8 Kf3 75. Rxh4 g2 76. Rh3+ Kg4 $11) 74. Ra4+ Kf3 75. Ra3+ Kf2 (75... Kf4 $5 76. Ra4+ $8 Kf3 $11) 76. Ra2+ Kf3 77. Ra3+ Kf2 (77... Kf4 $5 78. Ra4+ $8 Kg3 $11) 78. Ra2+ Kf1 79. Kg5 g3 80. Kg4 g2 81. Kf3 Kg1 82. Ra1+ Kh2 83. Kf2 g1=Q+ 84. Rxg1 {Accuracy: White = 82%, Black = 63%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.9"]
[White "Shehzad, Shazil"]
[Black "Risting, Eivind Olav"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2205"]
[BlackElo "2300"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,74,49,20,20,24,17,20,27,23,32,23,167,8,16,20,31,-5,0,0,35,0,0,0,0,0,0,-32,0,-23,-18,-52,-27,-45,-62,-81,0,0,21,-140,-140,-309,-308,-298,-314,-283,-297,-366,-339,-338,-295,-343,-223,-210,-213,-209,-202,-210,-198,-521,-520,-512,-508,-436,-434,-29995,-29996]} 1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Be3 a6 5. f4 b5 6. Be2 b4 {B06: Modern Defence.} 7. Na4 Bb7 8. Bf3 Nf6 {The position is equal.} 9. e5 Nd5 10. Bf2 {[#] Hoping for c4.} O-O $146 {[#]} (10... Nd7 $11 {and Black is okay.}) ({Predecessor:} 10... Qd7 11. c4 bxc3 12. Nxc3 Nxc3 13. bxc3 Bxf3 14. Qxf3 Nc6 15. Ne2 O-O 16. O-O Na5 {½-½ (46) Kosintseva,N (2425)-Lanchava,T (2323) Dresden 2004}) 11. Ne2 $2 (11. c4 $1 $18) 11... Nd7 $11 12. O-O Rb8 13. c4 bxc3 $1 14. bxc3 N7b6 15. Nxb6 Nxb6 16. Bxb7 Rxb7 17. Qd3 a5 18. Qf3 Rb8 19. Ng3 Qd7 20. Rad1 Qa4 21. Ne4 Qxa2 22. Bh4 Rbe8 (22... f5 $17 23. exf6 exf6) 23. f5 $1 dxe5 {[#]} 24. f6 $2 ({White should play} 24. Bxe7 $1 $11 {[%mdl 512]} Rxe7 25. f6) 24... exf6 $17 25. Nxf6+ $2 (25. Bxf6 $17 {was called for.} exd4 26. Bxg7 Kxg7 27. Qf6+ Kg8 28. Qxd4) 25... Bxf6 $19 26. Bxf6 e4 27. Qh3 {Qh6 would kill now.} Nd5 28. Bg5 f5 29. Ra1 {[%cal Bd1a1,Ba1a5,Ba5c5][%mdl 32]} Qb3 30. Rxa5 e3 31. Qf3 Re4 {[%cal Be8e4,Be4f4,Bf4f1][%mdl 32]} ({Don't take} 31... Nxc3 32. Bxe3 Qb4 33. Rc5) 32. Rc5 e2 ({Resist} 32... Nxc3 33. Bh6 $17) 33. Re1 Rfe8 34. c4 $2 (34. h4) 34... Qb4 35. Qf2 {[#]} Nf4 $1 {[%mdl 512]} 36. Bxf4 {[#]} Rxf4 $1 {[%mdl 512]} 37. Qg3 {[#]} (37. Rb5 $19 Qc3 38. Rb3 Qxb3 39. Qxf4) (37. Qxf4 Qxe1+) 37... Rf1+ $1 {[%mdl 576] Decoy, Promotion. Accuracy: White = 45%, Black = 72%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "4.10"]
[White "Pantzar, Milton"]
[Black "Tryggestad, Andreas Garberg"]
[Result "1-0"]
[ECO "D73"]
[WhiteElo "2417"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,79,13,32,24,21,17,38,22,75,61,78,68,96,73,106,89,119,109,119,123,137,133,137,128,208,218,211,164,160,171,184,196,196,158,190,187,229,235,255,202,226,227,238,241,322,321,322,320,318,316,375,345,313,288,704,428,428,428,421,415,373,400,795,785,29989,29990]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. g3 c6 5. Nc3 d5 6. Qb3 O-O 7. Bg2 dxc4 8. Qxc4 Be6 9. Qa4 {D73: Fianchetto Grünfeld: 5 Nf3 .} Nbd7 10. O-O Nb6 11. Qc2 {White is slightly better.} Nbd5 (11... Nfd5 $11) 12. e4 $16 Nxc3 13. bxc3 Qa5 14. a4 Bc4 15. Rd1 {[#]} Nd7 $146 ({Predecessor:} 15... Rfd8 16. Rb1 b6 17. Ne5 Qa6 18. Nxc6 Rd7 19. Bf4 Ne8 20. Nb8 Rxb8 21. Bxb8 Nc7 {1-0 (34) Velikov,P (2492)-Bardin,C Gonfreville 1999}) 16. Nd2 Be2 17. Re1 Ba6 18. Ba3 Rfe8 19. e5 Qc7 (19... Nf8 $16 {was worth a try.} 20. f4 Rad8) 20. e6 $18 fxe6 21. Qb3 Nf8 22. Ne4 {[%mdl 1024] White has strong compensation.} b6 23. Ng5 Bc8 24. Ra2 {[%cal Ba1a2,Ba2e2,Be2e6][%mdl 32]} Bf6 25. Bc1 ({Don't do} 25. Nxe6 $6 Nxe6 26. Rxe6 Bxe6 $16) 25... Kg7 26. Bf4 Qd7 27. Rae2 Bb7 28. Nxe6+ Nxe6 29. Rxe6 ({Don't play} 29. Qxe6 $6 Rad8 $16) 29... c5 30. Bxb7 Qxb7 31. dxc5 Rac8 32. cxb6 axb6 33. Rxb6 Qd7 34. Be5 Qd2 $2 (34... Bxe5 35. Rxe5 Kh8) 35. Rd1 {[#] aiming for Bxf6+.} Qe2 36. Bxf6+ exf6 37. Rb7+ Kh6 38. Rbd7 Qc4 (38... Re7 $142 39. Rxe7 Qxe7) 39. Qb7 Rh8 40. R1d4 {Black did not feel at home in the position after the opening. Accuracy: White = 80%, Black = 39%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.1"]
[White "Johansson, Linus"]
[Black "Tari, Aryan"]
[Result "1-0"]
[ECO "E21"]
[WhiteElo "2476"]
[BlackElo "2634"]
[Annotator "TA"]
[PlyCount "113"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,113,20,22,-25,-16,-45,0,-11,-2,-6,46,13,17,11,20,18,23,5,0,10,7,0,0,0,3,5,16,-10,41,32,56,14,23,34,14,18,95,89,132,87,116,98,104,108,123,73,79,79,272,267,480,446,472,473,452,366,646,637,638,638,638,638,625,617,654,650,648,642,672,663,667,239,217,232,229,182,191,140,221,221,225,203,169,180,276,171,270,280,283,231,453,455,459,459,871,855,1063,1037,1036,1003,1445,1222,1465,1398,1354,939]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. Bg5 c5 6. d5 {E21: Nimzo-Indian: 4 Nf3.} h6 7. Bh4 Bxc3+ 8. bxc3 {The position is equal.} d6 9. e3 e5 (9... exd5 $11 10. cxd5 Bg4) 10. Qc2 e4 11. Nd2 $1 {[#]} g5 $146 ({Predecessor:} 11... Bf5 12. f4 g5 13. Bg3 Ng4 14. Ke2 Bg6 15. h3 Nf6 16. fxg5 hxg5 17. Bh2 Qe7 {½-½ (51) Tregubov,P (2581)-Saduakassova,D (2491) Porticcio 2018}) 12. Bg3 Bf5 13. h4 Bg6 14. Be2 Qe7 15. Qb2 b6 16. a4 Nbd7 17. a5 Rfb8 18. O-O bxa5 ({Black should play} 18... Nh5 $11) 19. Qc2 $14 Ne8 20. h5 Bh7 21. Nb3 Rb6 22. Nxa5 Nb8 (22... Ndf6 $1 $11) 23. Rfb1 $36 {[%mdl 2048] Black is under strong pressure.} Nf6 24. Nc6 Rxb1+ 25. Qxb1 Nxc6 26. dxc6 {And now Qb7 would win.} Rc8 27. Qb7 Rc7 28. Qa8+ Kg7 $2 {[#] Loses the game.} (28... Qe8 $16 29. Rxa7 Rxc6) 29. Rb1 $1 $18 Qe8 $2 (29... Bf5 {was called for.} 30. Rb7 a5) 30. Qxe8 Nxe8 31. Rb8 Re7 32. Rb7 Kf6 $2 (32... Rc7 33. Rxc7 {[%mdl 64] Overworked Piece} Nxc7 34. Bxd6 {[%mdl 64] Double Attack} Ne8) 33. Bg4 a5 {Black hopes to continue with ...a4.} 34. Bd7 a4 {If Black can now play ...a3 this consolidates a bit.} 35. Rb8 a3 36. Ra8 (36. Bxe8 a2 $16) 36... a2 37. Rxa2 ({Not} 37. Bxe8 Rxe8 38. Rxa2 Rc8 $16) 37... Bf5 38. Ra7 Be6 39. Rb7 Kf5 40. Rb8 $2 (40. f4) 40... Rxd7 41. cxd7 Bxd7 {[%mdl 4096] Endgame KRB-KBN} 42. Rb6 Ke6 43. f3 (43. f4 $18 {aiming for fxg5.} exf3 44. gxf3) 43... exf3 (43... Bc8 $16 44. fxe4 f6) 44. gxf3 Ke7 45. Rb7 Ng7 {[#]} 46. Bh2 $1 Ne8 (46... f5 $142 47. Rb6 Ne8) 47. Kf2 Kd8 (47... f5 $142 48. Ra7 Nf6) 48. e4 f6 49. f4 Bc6 $2 (49... gxf4 50. Bxf4 Bg4) 50. Rh7 {White is clearly winning.} Bxe4 51. Rxh6 g4 (51... Ke7 $142 52. Rh8 Kf7) 52. Rh8 Kd7 53. h6 Nc7 54. h7 Kc6 55. Bg3 Bg6 56. Bh4 Be4 57. Bxf6 {Accuracy: White = 72%, Black = 50%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.2"]
[White "Haug, Johannes"]
[Black "Notkevich, Benjamin Arvola"]
[Result "1-0"]
[ECO "B04"]
[WhiteElo "2431"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,73,12,20,30,42,35,46,66,53,104,107,106,93,99,93,101,110,144,136,139,133,294,292,289,277,280,275,264,209,265,264,268,235,238,227,300,301,302,250,363,250,249,251,262,227,257,239,519,498,510,499,954,952,29975,29976,29992,29993,29998,29999]} 1. d4 g6 2. e4 Bg7 3. Nf3 d6 4. Bc4 Nf6 5. Qe2 O-O 6. h3 c6 7. e5 Nd5 8. O-O dxe5 9. dxe5 Nd7 {B04: Alekhine's Defence: 4 Nf3.} 10. Re1 Nc5 11. Nbd2 {[%cal Bb1d2,Bd2b3,Bb3c5][%mdl 32]} b5 {[#] White is slightly better.} 12. Nb3 $146 ({Predecessor:} 12. Bb3 a5 13. Ne4 Nxb3 14. axb3 Qb6 15. Nc3 b4 16. Nxd5 cxd5 17. Bg5 e6 18. Qd2 {1-0 (60) Turner,J (2315)-Krnavek,L (2330) Czechia 2004}) 12... bxc4 (12... Na4 $14) 13. Nxc5 $16 c3 14. bxc3 $1 Qa5 15. Nb3 Qa4 16. Bd2 Rd8 17. Nfd4 Ba6 18. Qf3 Rac8 $2 (18... Nb6 $16) 19. Nc5 $18 Qc4 {[#]} 20. Ndb3 $1 {Re4 is the strong threat.} (20. Nxa6 Qxa6 21. Qe4 c5 $14) 20... Nc7 21. Re4 (21. Qxc6 Bb5 $16) 21... Qd5 22. Qe3 f5 23. exf6 $1 Bxf6 24. Nxa6 Nxa6 {[#]} 25. c4 $1 {[%cal Rc4d5]} Qf5 26. Re1 c5 27. a3 Nb8 (27... Rf8 {was worth a try.} 28. g4 Qd7) 28. Bc3 Bxc3 29. Qxc3 Nc6 30. Qe3 Qf6 31. Rf4 ({But not} 31. Qxc5 Qd6 $18) 31... Qb2 $2 (31... Qd6 {keeps fighting.} 32. Nxc5 e5) 32. Qe6+ Kh8 33. Rf7 Qxc2 {[#]} (33... Rg8 $142 34. Nxc5 Qd4) 34. Na5 $1 {[%mdl 512]} Qd2 (34... Nxa5 35. Qe5+) 35. Nxc6 {White mates.} Rxc6 36. Qxe7 ({Less strong is} 36. Qxc6 Qxe1+ 37. Kh2 Kg8 $14) 36... Rc7 37. Qe5+ {Black did not feel at home in the position after the opening. Accuracy: White = 87%, Black = 45%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.3"]
[White "Haldorsen, Benjamin"]
[Black "Holm, Kristian Stuvik"]
[Result "1/2-1/2"]
[ECO "D20"]
[WhiteElo "2458"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,26,0,0,0]} 1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Nb6 6. Bb3 Nc6 7. Nf3 Bg4 8. Ng5 Bxd1 9. Bxf7+ Kd7 10. Be6+ Ke8 11. Bf7+ Kd7 12. Be6+ Ke8 13. Bf7+ Kd7 {A rather calm draw. D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.4"]
[White "Urkedal, Frode Olav Olsen"]
[Black "Pantzar, Milton"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2557"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,67,5,27,0,0,-17,-33,-26,-31,-18,-26,-64,-68,-69,-75,-81,-73,-79,-84,-89,-78,-81,-93,-84,-56,-54,0,-6,-3,-1,-6,-8,0,-3,0,-110,-110,-118,-106,-263,-268,-243,-196,-178,-167,-281,-279,-281,-262,-272,-275,-289,-298,-349,-226,-319,-268,-295,-286,-875]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Qb3 c5 6. Nf3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} c4 7. Qc2 Nc6 {[#]} 8. g3 $146 {Black is slightly better.} ({Predecessor:} 8. Bg5 Be7 9. Bxe7 Ngxe7 10. e4 b5 11. O-O-O O-O 12. Be2 dxe4 13. Qxe4 Bf5 14. Qf4 {0-1 (25) Moroni,L (2553)-Maghsoodloo,P (2671) chess.com INT 2019}) 8... Bb4 9. Bg2 Nge7 10. Bg5 f6 11. Bf4 Bf5 12. Qc1 O-O 13. O-O b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 14. Rd1 Rc8 15. Ne1 Ba5 16. Nc2 Qd7 17. a4 b4 {[#]} 18. Nxd5 $1 {[%mdl 576] Decoy} Nxd5 19. Bxd5+ Qxd5 20. Ne3 Qd7 21. Qxc4+ Kh8 {Strongly threatening ...Bb6.} 22. Qc5 (22. Qxa6 $11 Ra8 23. Qb5) 22... Bg6 $17 23. d5 {[#]} Qa7 $1 {[%cal Ra7c5]} 24. Rac1 $2 {This costs White the game.} (24. Qxa7 $17 {is the only way for White.} Nxa7 25. Rac1) 24... Bb6 $19 25. Qc4 Ne7 26. Qxb4 Nf5 $36 {[%cal Rf5e3][%mdl 2048] Black is really pushing.} 27. Nxf5 (27. a5 $142 Bxe3 28. fxe3 Nxe3 29. Rxc8 Rxc8 30. Qd4 Qxd4 31. Rxd4) 27... Bxf2+ ({Don't do} 27... Bxf5 28. e3 $17) 28. Kg2 {Threatens to win with Ne7.} Bxf5 29. Rc7 Bc5 30. Rxa7 Bxb4 31. Rxa6 Rfd8 32. Kf3 (32. Rc1 $142) 32... Rc4 33. g4 Bc2 34. Rc6 $2 {Accuracy: White = 62%, Black = 76%.} (34. Rc1) 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.5"]
[White "Vestby-Ellingsen, Mads"]
[Black "Djurhuus, Rune"]
[Result "0-1"]
[ECO "B41"]
[WhiteElo "2351"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,103,40,75,82,106,111,104,104,115,49,54,54,63,20,14,25,17,-39,-21,-50,-35,-33,-35,-35,-25,-95,-8,-12,-15,-22,-27,-16,-20,-7,-7,-7,-7,-12,-4,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,-8,-8,-8,0,-31,-20,-109,-56,-198,-200,-187,-202,-1159,-1145,-1049,-484,-954,-480,-1244,-1022,-956,-943,-945,-929,-950,-808,-29990,-6083,-6083,-6083,-5795,-5795,-5357,-5281,-29978,-29979,-3037]} 1. d4 e6 2. Nf3 Nf6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 a6 6. e4 Qc7 7. a3 Nc6 8. Be3 Ne5 9. Be2 {B41: Sicilian: Kan Variation: 5 c4.} h5 10. h3 Ng6 11. Qd2 {White is better.} b6 {[#]} 12. Nf3 $146 (12. f4 $16) ({Predecessor:} 12. f4 Bb7 13. Bd3 h4 14. O-O Nh5 15. b4 Ng3 16. Rfe1 Be7 17. Rac1 d6 18. Qf2 {½-½ (32) Solak,D (2355)-Ionescu,C (2515) Bucharest 1997}) 12... Bb7 $14 13. Ng5 Bc5 14. O-O Bxe3 15. Qxe3 Qf4 16. Na4 (16. b4 $11) 16... Nxe4 $15 17. Nxe4 Qxe4 18. Qxe4 Bxe4 19. f3 Nf4 20. Rfe1 {[#]} (20. fxe4 $11 {keeps the balance.} Nxe2+ 21. Kf2) 20... Bc6 ({Don't play} 20... Nxe2+ $6 21. Rxe2 Bc6 22. Nxb6 $11) (20... b5 $1 $17 {[%mdl 512]} 21. Nb6 (21. cxb5 Nxe2+) 21... Rb8 22. fxe4 Rxb6 23. cxb5 Nxe2+ 24. Rxe2 Rxb5) 21. Nxb6 $11 Rb8 22. c5 Nxe2+ 23. Rxe2 d6 24. Nc4 dxc5 25. Ne5 Bb5 26. Rc2 Ke7 27. a4 Be8 28. Nd3 Rb6 29. Nxc5 a5 30. Nd3 Bd7 31. Rc5 Ra8 32. Ra3 f6 33. Rxh5 e5 34. Rh4 Bf5 35. Rc4 Rd8 $36 {[%mdl 2048] Black has some pressure.} 36. Rcc3 Rd4 37. Kf1 {[#]} (37. Nc5 $11) 37... Kd6 ({Black should play} 37... Bxd3+ $1 $17 38. Rxd3 Rxb2) 38. Nc5 {This costs White the game.} ({Better is} 38. h4 $15) 38... Rxb2 $19 {[%cal Rd4d1]} 39. Rc1 Rdd2 {White must now prevent ...Rf2+.} 40. Rb3 $2 (40. g4 Bc2 41. Ne4+ Bxe4 42. fxe4) 40... Rf2+ 41. Ke1 Rbe2+ 42. Kd1 Rxg2 43. Rb6+ {[#]} (43. Ne4+ $142 Bxe4 44. fxe4 Rxe4 45. Rd3+ Ke6 46. Rc6+ Kf5 47. Rf3+ Kg5 48. Rcc3) 43... Kc7 $1 44. Rb7+ Kc6 {( -> ...Rd2+)} 45. Rxg7 Bc2+ ({Not} 45... Rxg7 46. Kxe2 Kd5 47. Nb3 $17) 46. Rxc2 Rxc2 47. Ne6 Rxg7 (47... Rgd2+ $142 48. Ke1 Kd6 49. Nc5 {[%mdl 64] Decoy} Kxc5 50. Rc7+ {[#]} Kb4 $1 {[%mdl 512]} 51. Rxc2 Rxc2 52. h4 Kxa4 53. h5 Kb4 54. h6 a4 55. h7 Rh2 56. h8=B Rxh8 57. Kf2 a3 58. Ke3 f5 59. Kf2 a2 60. f4 a1=Q 61. fxe5 Qxe5 62. Kg2 Qe2+ 63. Kg3 Rg8+ 64. Kh4 Qh2#) 48. Nxg7 {KR-KN} Rf2 49. h4 Rxf3 50. h5 Rf2 51. Ne8 f5 52. Nf6 {Accuracy: White = 58%, Black = 81%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.6"]
[White "Risting, Eivind Olav"]
[Black "Nilsen, Joachim Birger"]
[Result "1/2-1/2"]
[ECO "E32"]
[WhiteElo "2300"]
[BlackElo "2411"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,37,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,17,8,0,0,25,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 {E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0.} cxd4 9. Nxd4 Nd7 {[%cal Bb8d7,Bd7c5,Bc5a4][%mdl 32]} 10. Bf4 Ndc5 11. O-O Bxc3 12. bxc3 Bd7 {12...Nxd3 is the modern continuation.} 13. Be2 {[#] Hoping for f3.} Na4 14. cxd5 exd5 15. Bd3 Nac5 16. Be2 Na4 17. Bd3 Nac5 18. Be2 Na4 19. Bd3 {[#] An uneventful encounter. Accuracy: White = 91%, Black = 100%.} {Predecessor:} Rc8 $146 20. Bxe4 dxe4 21. Qxe4 Nxc3 22. Qe3 Qb6 23. Rfe1 Rc4 24. Ne2 Nd5 25. Qd2 Bc6 26. Bg3 Nb4 27. Rec1 Rd8 {0-1 (53) Flom,G (2448)-Huschenbeth,N (2596) Bastia 2017} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.7"]
[White "Kvaloy, Aksel Bu"]
[Black "Kaasen, Tor Fredrik"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "2164"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,120,37,47,19,28,26,8,0,8,0,0,0,0,6,0,0,23,0,46,0,54,14,17,9,9,4,0,8,26,-66,-48,-57,-62,-225,-234,-234,-234,-230,-232,-237,-234,-239,-242,-230,-196,-197,-207,-204,-198,-195,-163,-243,-242,-274,-311,-310,-305,-298,-294,-366,-367,-429,-421,-477,-467,-514,-481,-498,-475,-662,-678,-629,-656,-788,-772,-725,-681,-1288,-1288,-4902,-1666,-1566,-1293,-1237,-1251,-1786,-1624,-5081,-5073,-29969,-29972,-29980,-29980,-29981,-29978,-29978,-29979,-29982,-29982]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3 Be6 9. Qd2 O-O 10. O-O-O Nbd7 11. g4 b5 12. g5 Nh5 {now supersedes 12...b4.} 13. Kb1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Nb6 14. Na5 Rc8 15. Rg1 {The position is equal.} Qc7 16. Nd5 Nxd5 17. exd5 Bxd5 18. Qxd5 Qxa5 19. Rg4 {[#]} Kh8 $146 ({Predecessor:} 19... g6 20. a3 Qc7 21. c4 bxc4 22. Rxc4 Qd8 23. h4 Ng3 24. Rdc1 Rxc4 25. Bxc4 Nf5 {1-0 (41) Stalmach,K (2560)-Zhak,B (2597) ICCF email 2015}) 20. Bd3 {[#] And now Rh4 would win.} g6 21. Rh4 f5 (21... Qc7 $11) 22. gxf6 Bxf6 23. Rxh5 gxh5 24. Bh6 e4 25. Qxe4 {[%csl Gd3][%cal Re4h7]} Rf7 26. Rg1 (26. Qf5 $11 Qc7 27. Qxh5) 26... Qc7 $15 27. Qe6 Rd8 28. Bg5 $2 {Loses the game.} ({Better is} 28. Bc1 $15) 28... Bxg5 $19 29. Rxg5 Qe7 ({Weaker is} 29... Rxf3 30. a4 $17) 30. Qxe7 Rxe7 {[%cal Re7e1][%mdl 4096] Endgame KRR-KRB} 31. Kc1 Re5 32. Rg2 Rg8 33. Rf2 Kg7 34. f4 Re7 35. Kd2 Kf6 36. Kc3 Reg7 {...Rg2 is the strong threat.} 37. Rf3 (37. Bf1 $142) 37... h4 38. Kd4 Rg2 39. Rh3 {[#]} R2g4 $1 40. Rf3 h5 41. Kd5 Rg2 42. Rh3 R8g4 43. f5 Rf4 44. Kxd6 Kg5 45. Ke5 Rgf2 46. Ke6 Kg4 47. Re3 {intending h3+.} Rxh2 48. f6 {If only White now had time for Be2+....} Rhf2 49. Be2+ Kg5 50. Re5+ Rf5 {Strongly threatening ...Rxe5+.} 51. Rxf5+ Rxf5 {KR-KB} 52. f7 Rf2 53. Bd3 Kh6 54. c4 Kg7 55. cxb5 axb5 56. Bxb5 Rxb2 {Black mates.} 57. a4 h3 58. Bc6 Re2+ 59. Kf5 h2 60. a5 Re1 {Accuracy: White = 47%, Black = 92%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.8"]
[White "Mihajlov, Sebastian"]
[Black "Nordquelle, Daniel"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2389"]
[BlackElo "2284"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,47,28,0,10,4,20,16,52,44,52,85,61,70,56,31,21,48,101,109,314,296,497,509,487,460,922,905,903,775,1136,1102,1583,1538,1512,1481,2011,2008]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 Be6 {7...Be7 is the modern continuation. B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 8. f4 g6 9. Be2 Nc6 {The position is equal.} 10. O-O Be7 11. f5 gxf5 12. exf5 Bxb3 13. axb3 d5 14. Bg5 {[#]} Nd4 $146 ({Better is} 14... Nb4 $14) ({Predecessor:} 14... Nb4 15. Na4 Rg8 16. Bxf6 Bxf6 17. c3 Nc6 18. Nc5 Kf8 19. b4 b6 20. Nb7 Qd7 {½-½ (40) Parshin,V (2330)-Mezera,L (2365) ICCF email 2014}) 15. Bf3 $1 $16 Nxf5 $2 {[#] Black cannot hold the game after this.} (15... Nxf3+ $16 16. Qxf3 e4) 16. Bxf6 $1 $18 ({Less strong is} 16. Bxd5 Nxd5 17. Qxd5 Qxd5 $16) 16... Bc5+ $2 (16... Bxf6 17. Bxd5 (17. Qxd5 O-O $16) (17. Nxd5 Ng3 $16) 17... Qb6+ 18. Kh2 Ne3) 17. Kh2 {White is clearly winning.} Qxf6 18. Bg4 Bd6 (18... Ne3 $142) 19. Rxf5 Qg6 20. Nxd5 e4+ 21. Kh1 h5 22. Nf6+ {[%mdl 64] [#] Discovered Attack} Ke7 23. Nxh5 Rh7 24. Rf6 {Accuracy: White = 100%, Black = 36%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.9"]
[White "Gjestemoen-VonHirsch, Andre"]
[Black "Storme, Isak"]
[Result "1-0"]
[ECO "A25"]
[WhiteElo "2077"]
[BlackElo "2379"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,67,0,12,6,18,12,22,10,22,-25,-4,-20,-6,-4,0,0,-33,11,34,-62,-65,-50,-49,-51,-63,-56,-47,-65,348,357,339,341,545,534,641,626,601,431,668,626,663,638,700,717,714,717,741,777,1531,1456,29988,29989,29993,29994,29994,29995,29995,29996]} 1. c4 g6 2. g3 Bg7 3. Bg2 e5 4. Nc3 Nc6 5. Rb1 f5 6. b4 Nf6 7. b5 {A25: English Opening vs King's Indian with ...Nc6 but without early d3.} Ne7 8. Nf3 e4 {[#]} 9. Nd4 $146 {The position is equal.} ({Predecessor:} 9. Ng5 h6 10. Nh3 d5 11. cxd5 Nfxd5 12. Nxd5 Qxd5 13. Bb2 Bxb2 14. Rxb2 Qe5 15. Qc1 {0-1 (31) Adan Bermudez,S (2366)-Narmontas,M (2427) Fredericia 2015}) 9... d5 10. c5 f4 11. Qa4 O-O 12. gxf4 Ng4 13. h3 Nxf2 14. Kxf2 {And now d3 would win.} Rxf4+ 15. Ke1 (15. Kg1 $14) 15... Nf5 $15 16. Nxf5 Bxf5 17. d4 {Nxd5 is the strong threat.} Qh4+ $1 18. Kd1 Rf2 19. Bf1 {Strongly threatening Be3.} ({Not} 19. Nxd5 $2 Rd8 $19) 19... Rxf1+ $4 {[%mdl 8192] Black cannot hold the game after this.} (19... e3 $1 $15 {stays ahead.} 20. Bxe3 Bh6 21. Bxh6 Qxh6) 20. Rxf1 $18 Qxh3 21. Rxf5 $1 gxf5 (21... Qxf5 $142 22. Be3 b6) 22. Kc2 Qh2 23. b6 cxb6 24. Qd7 {[%mdl 64] [#] Double Attack} Kh8 (24... Qg1 $142 25. Qxb7 {[%mdl 64] Double Attack} Re8) 25. Qxb7 Rb8 26. Qxd5 Rf8 27. cxb6 axb6 28. Rxb6 Qf2 29. Bh6 Qg2 30. Bxg7+ Kxg7 31. Rb7+ {White mates.} Kh8 32. Qe5+ Kg8 33. Qe6+ Kh8 {[#]} 34. Qe7 $1 {[%mdl 64] Double Attack. Accuracy: White = 85%, Black = 60%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.14"]
[Round "5.10"]
[White "Ranaldi, Lucas"]
[Black "Sjoberg, Isak"]
[Result "0-1"]
[ECO "E63"]
[WhiteElo "2353"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "120"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,120,42,22,47,24,36,26,37,31,33,25,25,28,22,26,29,15,30,14,20,0,22,0,18,25,31,27,24,28,62,0,0,0,-8,-22,-20,-36,-24,-50,-58,-76,-36,-39,-51,-69,-50,-59,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-18,-11,-81,-25,-94,0,-375,-364,-308,0,0,0,0,0,-1415,-1162,-1100,-1047,-1586,-1480,-1595,-1208,-12839,-12091,-12840,-12840,-12840,-12841,-12847,-12847,-12848,-12848,-12850,-12850,-12850,-29987]} 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. d4 O-O 5. Nc3 d6 6. Nf3 Nc6 7. O-O a6 8. d5 Na5 9. b3 c5 10. dxc6 Nxc6 11. Bb2 Qa5 {E63: King's Indian: Fianchetto: Panno Variation with 7...a6.} 12. Qc1 Bf5 13. Rd1 Rac8 {White has an edge.} 14. Nd5 Nxd5 $1 15. Bxg7 Kxg7 16. Rxd5 Qc7 {[#]} 17. Qc3+ $146 ({Predecessor:} 17. c5 Rfd8 18. cxd6 Rxd6 19. Qc3+ Kg8 20. Rad1 Rxd5 21. Rxd5 Rd8 22. Rxd8+ Qxd8 {½-½ (22) Ilincic,Z (2519)-Kislik,E (2302) Budapest 2008}) 17... f6 18. Rad1 Ne5 19. Qb4 Nc6 20. Qc3 Ne5 21. Qb4 Nc6 22. Qa3 Be6 23. R5d2 b5 24. c5 b4 25. cxd6 (25. Qc1 $1 $14) 25... bxa3 $11 26. dxc7 Rxc7 27. Rc1 {[#] Nd4 is the strong threat.} Rcc8 $1 28. Ng5 fxg5 29. Bxc6 Rc7 {Strongly threatening ...Rfc8.} 30. Rdc2 Rfc8 31. Be4 $1 Rxc2 32. Rxc2 $15 {[%mdl 4096] Endgame KRB-KRB} Kf6 $1 33. Rd2 $1 Bf5 (33... Rc1+ $15 34. Kg2 Bf5) 34. Bxf5 $1 $11 gxf5 {KR-KR} 35. b4 Rc1+ 36. Kg2 Ra1 37. Kf3 Ke5 38. Ke3 h5 39. f4+ gxf4+ 40. gxf4+ Ke6 41. Rc2 Kd6 42. Kd4 h4 43. h3 Rb1 44. Kc3 (44. Rc3 $11) 44... Kd5 ({Black should play} 44... e5 $17 45. Rd2+ Ke6) 45. Kd3 $1 Rh1 (45... Rxb4 $17 {And now ...Rb2 would win.} 46. Rc3 Rxf4) 46. Rc3 $2 {[%mdl 8192]} (46. Rc5+ $11 {and White has nothing to worry.} Ke6 47. Kd4) 46... Rxh3+ $19 47. e3 e5 $2 ({Black should try} 47... Rh1 $19 {White must now prevent ...h3.} 48. Rc5+ Ke6 49. Rc6+ Kd7) 48. Rc5+ $11 Kd6 {Threatens to win with ...exf4.} 49. Rxe5 Rh2 50. Rxf5 $2 {[%mdl 8192]} (50. Ra5 $11) 50... Rxa2 $19 {Black is clearly winning.} 51. Rh5 Rh2 52. Rh6+ Kd7 53. Rxa6 {[#]} a2 $1 54. Ke4 Rf2 55. Kd5 Rd2+ 56. Kc4 h3 57. Kc3 h2 58. Kxd2 h1=Q 59. Rxa2 Qg2+ 60. Kc3 Qxa2 {Accuracy: White = 77%, Black = 88%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.1"]
[White "Haug, Johannes"]
[Black "Johansson, Linus"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2431"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,75,12,26,8,12,10,24,22,35,35,42,30,46,34,66,70,152,151,285,287,303,295,285,289,322,277,282,264,285,266,260,278,304,286,345,344,329,346,328,336,327,310,331,353,331,332,604,528,29985,29986,29986,29987,29987,29988,29990,29991,29991,29991,29991,29982,29992,29993]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 a6 8. Qd2 b5 9. Nd1 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} cxd4 10. Nxd4 Qc7 11. c3 {White has an edge.} Be7 {[#]} 12. Bd3 $146 ({Predecessor:} 12. Be2 Bb7 13. O-O Nc5 14. Nf2 f5 15. exf6 Bxf6 16. Nxb5 axb5 17. Bxc5 Ba6 18. b4 {1-0 (26) Kostin,A (2299)-Manelis,V (2258) Voronezh 2013}) 12... Nc5 13. Bc2 Ne4 14. Qe2 b4 15. c4 Bh4+ (15... O-O $14) 16. g3 $16 Bxg3+ (16... Be7 $16 17. cxd5 Nxd4 18. Bxd4 exd5) 17. hxg3 $18 Nxg3 18. Qg2 Nxd4 19. Bxd4 Nxh1 20. Ne3 (20. cxd5 Bb7 $16) 20... Bb7 21. Ba4+ (21. Qxh1 dxc4 22. Qh4 Kf8 $14) ({But not} 21. cxd5 $6 O-O-O $16) 21... Kf8 22. cxd5 Rd8 {[%cal Rd8d5]} 23. Bb3 ({Not} 23. Qxh1 Bxd5 24. Nxd5 Rxd5 $16) 23... a5 24. Qxh1 a4 25. Bxa4 Bxd5 26. Nxd5 Rxd5 27. Be3 h5 28. Bb3 Rd8 29. Rc1 Qb8 30. Qe4 {f5 is the strong threat.} g6 $2 {[#]} (30... h4 31. Kf2 Rc8 32. Qxb4+ {[%mdl 64] Deflection} Qxb4 33. Rxc8+ Ke7 34. Bc5+ (34. Rxh8 g5 $18) 34... Kd7 35. Bxb4 Rxc8) 31. Bxe6 $1 {[%mdl 512]} Kg7 {[#]} (31... fxe6 32. Qxg6) 32. Bxf7 $1 {[%mdl 512] White mates.} Kxf7 33. Rc6 Rh6 34. f5 {[%mdl 64] Discovered Attack} Re8 35. Qd5+ Kg7 36. Bxh6+ Kh8 37. Bf4 Qa7 38. Rxg6 {Black got outplayed after the opening. Accuracy: White = 100%, Black = 54%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.2"]
[White "Pantzar, Milton"]
[Black "Haldorsen, Benjamin"]
[Result "1/2-1/2"]
[ECO "A62"]
[WhiteElo "2417"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "104"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,104,26,29,0,4,0,12,-4,-24,-43,-30,-42,-29,-38,-12,-45,-45,-36,-49,-46,0,0,4,-6,0,0,-13,-21,0,-6,18,-74,-32,-32,-31,-33,-39,-39,-32,-38,-38,-38,-38,-38,-33,-39,-16,-16,-7,-14,0,0,0,-23,0,0,0,-17,0,0,0,0,0,-25,-25,-25,0,0,0,-25,0,0,0,-25,-25,-25,0,-67,-67,-67,-67,-67,-33,-33,-25,-25,-25]} 1. d4 g6 2. c4 Bg7 3. Nf3 Nf6 4. g3 c5 5. d5 O-O 6. Bg2 e6 7. O-O exd5 8. cxd5 d6 9. Nc3 Qe7 10. Bf4 Nbd7 11. h3 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7.} Nh5 12. Bg5 f6 $1 {[%cal Rf6g5]} 13. Bc1 {The position is equal.} f5 14. e4 f4 $1 15. g4 Nhf6 16. Bxf4 {And now e5 would win.} Nxg4 17. Bg3 (17. Bc1 {feels hotter.} Ngf6 18. Ng5 Ne5 19. f4 Nf7 20. f5) 17... Nge5 18. Nxe5 Nxe5 {[#]} 19. f4 $146 ({Predecessor:} 19. Qe2 g5 20. f4 gxf4 21. Bxf4 Bd7 22. Bg3 Ng6 23. Rxf8+ Rxf8 24. Rf1 Rxf1+ 25. Qxf1 {0-1 (40) Bulski,K (2534)-Alekseev,E (2714) Kazan 2013}) 19... Nf7 20. Qd2 Bd7 21. Rae1 Rae8 22. Kh1 b6 23. Nd1 Qd8 24. Ne3 g5 25. Nc4 (25. f5 $11) 25... Bb5 26. b3 gxf4 27. Rxf4 Bxc4 $1 28. bxc4 Ne5 29. Qe2 Ng6 30. Rxf8+ Rxf8 31. Qg4 Kh8 32. Rf1 Rxf1+ 33. Bxf1 Be5 34. Bf2 Qf6 35. Qf5 Kg7 36. Kg2 h6 37. Kf3 Bd4 38. Bg3 (38. Qxf6+ {looks sharper.} Kxf6 39. Bg3 Be5 40. Bf2 h5 41. Be2) 38... Be5 (38... Ne5+ {is interesting.} 39. Bxe5 Bxe5 40. h4 Bc3 41. Bd3 h5) 39. Bf2 h5 (39... Qe7 {is more complex.} 40. Qg4 Qf7+ 41. Qf5 Qe8 42. Kg2 Nf4+) 40. Qxf6+ Kxf6 $11 {[%mdl 4096] Endgame KBB-KBN} 41. Bd3 Bd4 {[#] White must now prevent ...Ne5+.} 42. Bg3 Be5 43. Be1 Bd4 44. Bg3 Be5 45. Be1 Bb2 46. Bg3 Ne5+ 47. Ke2 Bc1 48. Bxe5+ (48. Bh4+ $11 Bg5 49. Be1) 48... Kxe5 $15 49. Kd1 Bg5 50. Kc2 Kf4 51. Be2 h4 52. Kd3 Bf6 {Accuracy: White = 77%, Black = 83%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.3"]
[White "Djurhuus, Rune"]
[Black "Nilsen, Joachim Birger"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2437"]
[BlackElo "2411"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,110,-5,8,10,16,14,16,21,25,-2,0,-2,0,0,0,-12,32,0,0,0,25,25,45,35,136,-6,369,166,153,135,117,120,122,-5,0,-48,-35,-55,-51,-65,0,0,0,0,-35,-83,-50,-68,0,0,102,104,139,155,138,112,106,109,124,0,0,-2,0,0,0,-10,-14,-24,0,0,0,0,0,0,0,0,0,0,0,25,0,9,1521,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 d5 2. d4 Nf6 3. Bf4 e6 4. e3 c5 5. Nbd2 Nc6 6. c3 cxd4 7. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Nh5 8. Be3 Bd6 9. Ne5 g6 10. f4 (10. Ndf3 {looks sharper.} f6 11. Ng4 O-O 12. g3 Kh8 13. Bg2) 10... f6 11. Nd3 O-O 12. g4 $36 {[%mdl 2048] White is more active.} Ng7 13. Bg2 {[#]} Bc7 $146 ({Predecessor:} 13... e5 14. Bxd5+ Kh8 15. Bxc6 bxc6 16. O-O exd4 17. Bxd4 Ne6 18. Be3 Ba6 19. c4 Bc7 {½-½ (58) Gochelashvili,D (2425)-Sarana,A (2472) Sochi 2017}) 14. Qf3 b6 15. O-O-O a5 16. h4 a4 17. h5 Ba6 {[#]} (17... gxh5 $14 18. Nf1 Qe8) 18. c4 (18. hxg6 $1 $16 Bxd3 19. f5 hxg6 20. Bh6 Bxf5 21. Bxg7 (21. gxf5 Nxf5 22. Bxf8 Qxf8 $16) 21... Kxg7 22. gxf5) 18... dxc4 $2 {[%mdl 8192]} (18... gxh5 $11 {and Black is okay.} 19. f5 (19. cxd5 Ne7 $11) 19... Qe7) 19. Qxc6 (19. hxg6 $142 hxg6 20. Qxc6 (20. Qh3 Kf7 $18) 20... cxd3 21. Qxa8 Qxa8 22. Bxa8 Rxa8 23. Rh6) 19... cxd3 $18 20. Qxa8 Qxa8 21. Bxa8 Rxa8 22. h6 (22. hxg6 $16 hxg6 23. Rh6) 22... Ne8 $11 23. Kb1 Bb7 {[%mdl 1024] Black has compensation.} 24. Rhg1 b5 $1 25. Rc1 Bb6 (25... Ba5 $15) 26. Rc3 Nc7 27. Rxd3 Nd5 28. Re1 Rd8 29. a3 Ba6 ({Black should play} 29... Ba5 $15) 30. b4 Bb7 (30... axb3 $1 $11 31. Rxb3 Ba5) 31. Ne4 $16 Nxb4 32. Nxf6+ Kf7 33. axb4 Kxf6 34. Bf2 {Black must now prevent Bh4+.} Kf7 {[#]} 35. d5 (35. Rc3 $1 $16) 35... Bxf2 $11 36. dxe6+ Ke7 37. Rxd8 Kxd8 38. Rd1+ Ke8 {Strongly threatening ...Be3.} 39. Kb2 Bf3 40. Rd2 Bg1 41. f5 gxf5 ({Don't blunder} 41... Bxg4 $2 42. fxg6 Bf5 43. g7 $18) 42. gxf5 {And now f6 would win.} Bg4 43. Rd5 Be3 44. Rxb5 {Hoping for Rb8+.} Bxh6 45. Rb8+ Ke7 46. Rb7+ Ke8 $2 {[%mdl 8192]} (46... Kd8 $11) 47. Rxh7 $2 (47. f6 $18 {[%cal Rb7b8]} Bf4 48. Rg7 (48. Rxh7 Be5+ {[%mdl 64] Double Attack} 49. Ka3 Bxf6 $11) 48... Bxe6 49. Re7+ {[%mdl 64] Double Attack} Kf8 50. Rxe6) 47... Bf8 {The position is equal.} 48. f6 {Threatens to win with e7.} Bxe6 49. Ka3 Bd7 50. Rh5 Kf7 51. Rh7+ Ke8 52. Rxd7 {[%mdl 64] Remove Defender} Kxd7 53. Kxa4 Bxb4 54. Kxb4 Ke6 55. f7 Kxf7 {Accuracy: White = 69%, Black = 66%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.4"]
[White "Notkevich, Benjamin Arvola"]
[Black "Gjestemoen-VonHirsch, Andre"]
[Result "1-0"]
[ECO "A23"]
[WhiteElo "2476"]
[BlackElo "2077"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,18,27,12,19,0,0,-27,173,176,176,170,179,179,232,208,220,181,197,188,194,197,205,184,196,181,292,277,281,275,641,632,493,415,654,496,643,650,639,631,540,400,400,327,766,403,777,756,761,746,925,894,2569,1884,1884,1864,1806,1804,1640,1640,926,886]} 1. c4 e5 2. Nc3 Nf6 3. g3 c6 4. d4 e4 5. Bg5 Bb4 $1 6. Bg2 {A23: English Opening: 1...e5 2 Nc3 Nf6 3 g3 c6.} d5 7. Qb3 Bxc3+ $1 8. bxc3 {[#] The position is equal.} Be6 $146 (8... Nbd7 $1 $11 {and Black stays safe.}) ({Predecessor:} 8... Nbd7 9. f3 h6 10. Bxf6 Nxf6 11. fxe4 Nxe4 12. cxd5 cxd5 13. Qb5+ Qd7 14. Qxd7+ Bxd7 {½-½ (51) Balog,I (2559)-Balogh,C (2629) Hungary 2019}) 9. Bxf6 $1 $18 (9. Qxb7 $6 Nbd7 $14) 9... gxf6 10. Qxb7 Nd7 {[#]} 11. Nh3 $1 (11. Qxc6 $6 Qa5 $11) 11... Qa5 {[#]} (11... Qc8 $142 12. Qxc8+ Rxc8) 12. O-O $1 (12. Qxa8+ $2 {perishes.} Ke7 $19) 12... Ke7 {aiming for ...Rab8.} 13. Nf4 ({Much less strong is} 13. Qxc6 $6 Rhc8 $16) 13... Rhc8 {Hoping for ...Rab8.} 14. Qb2 Nb6 15. Nxe6 fxe6 16. c5 Nc4 17. Qc1 Rab8 (17... Qd8 $142 18. Rb1 Rab8) 18. Qh6 Rf8 19. Rab1 {Rxb8 is the strong threat.} (19. Qxh7+ Rf7 $16) 19... Rb2 $2 (19... Qc7 20. f3 e3 21. Rxb8 (21. Qxh7+ Rf7 $18) 21... Qxb8 22. Qxh7+ Rf7) 20. Rxb2 Nxb2 21. Qf4 Rd8 (21... f5 $142 22. Qd6+ {[%mdl 64] Double Attack} Kf7 23. Qxc6 Qxc3 24. Qd7+ Kf6) 22. Qg4 Rf8 23. Bh3 f5 24. Qh4+ Rf6 25. Qxh7+ Rf7 26. Qh4+ Rf6 $2 (26... Kd7 27. Qh6 Nc4) 27. Qf4 Rf7 (27... Kf7 $142 28. Qb8 Qb5 29. Qxa7+ Kg6) 28. Rb1 {White is clearly winning.} Qxc3 29. Qb8 Qxd4 30. Rxb2 Rg7 31. Rb7+ {[%mdl 64] Double Attack} Kf6 32. Qf8+ Kg6 33. Rxg7+ Qxg7 34. Qxg7+ Kxg7 35. e3 {Black got outplayed after the opening. Accuracy: White = 79%, Black = 36%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.5"]
[White "Holm, Kristian Stuvik"]
[Black "Risting, Eivind Olav"]
[Result "1/2-1/2"]
[ECO "A29"]
[WhiteElo "2462"]
[BlackElo "2300"]
[Annotator "TA"]
[PlyCount "49"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,49,8,10,2,16,4,13,0,2,-14,-17,-8,22,16,16,9,13,0,0,15,4,4,4,13,14,0,11,3]} 1. c4 Nf6 2. Nc3 e5 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. d3 Be7 7. Be3 O-O 8. Rc1 Re8 9. Nf3 Nc6 10. O-O Be6 11. a3 Nd5 12. Nxd5 Bxd5 {The position is equal.} 13. Qa4 {A29: English Opening: Four Knights Variation with 4 g3.} a6 14. Rfe1 h6 {[#]} 15. h4 $146 ({Predecessor:} 15. Nd2 Bxg2 16. Kxg2 Qd5+ 17. Qe4 Rad8 18. Rc2 f5 19. Qxd5+ Rxd5 20. Rec1 Bd6 21. Nc4 {½-½ (83) Giri,A (2779)-Karjakin,S (2748) Riga 2019}) 15... f5 16. Nd2 Bxg2 17. Kxg2 {[#] And now Qb3+ would win.} Qd5+ 18. f3 Rad8 19. Qb3 Qxb3 20. Nxb3 Rd5 21. Bc5 Bf6 22. Rc2 e4 23. dxe4 fxe4 24. f4 g5 25. hxg5 {An uneventful encounter. Accuracy: White = 100%, Black = 91%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.6"]
[White "Sjoberg, Isak"]
[Black "Mihajlov, Sebastian"]
[Result "0-1"]
[ECO "C05"]
[WhiteElo "2189"]
[BlackElo "2389"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,60,20,35,-28,-33,-251,-229,-262,-250,-261,-270,-359,-373,-376,-376,-376,-373,-366,-369,-512,-412,-401,-217,-215,-216,-206,-200,-212,-213,-335,-316,-381,-381,-373,-379,-547,-544,-505,-442]} 1. e4 e6 2. d4 d5 3. Nd2 Nf6 4. e5 Nfd7 5. c3 c5 6. f4 Nc6 7. Ndf3 Qb6 8. g3 f6 9. Bh3 Be7 10. Ne2 cxd4 11. cxd4 O-O 12. Bxe6+ Kh8 13. Bxd5 {C05: French Tarrasch: 3...Nf6 4 e5 Nfd7, 5 f4 and 5 Bd3 sidelines.} (13. exf6 $1 $14 Nxf6 14. Bxc8 Bb4+ 15. Kf1 Raxc8 16. a3) 13... fxe5 $11 {Strongly threatening ...Qa5+.} 14. fxe5 $2 (14. Bxc6 $15 Qxc6 15. O-O) 14... Ndxe5 $19 15. O-O {Black is clearly better.} (15. Nxe5 Nxe5 16. Bf4 Bg4) 15... Bh3 16. Nxe5 Bxf1 ({Not} 16... Rxf1+ 17. Qxf1 Bxf1 18. Nf7+ Kg8 19. Ne5+ Kh8 20. Nf7+ Kg8 21. Ne5+ Kh8 $11) 17. Nf7+ {[#]} Rxf7 $1 {[%mdl 512]} 18. Bxf7 Bxe2 $1 19. Qxe2 {[#]} Nxd4 $146 ({Predecessor:} 19... Rf8 20. Bb3 Nxd4 21. Qxe7 Ne2+ 22. Kg2 Qf2+ 23. Kh3 Ng1+ 24. Kh4 Qxh2+ {0-1 (24) Amiri,P-Gleizerov,E (2550) Teheran 2005}) 20. Qf2 Qc6 21. Bh5 ({Don't go for} 21. Qxd4 $2 Bc5 $1 $19 {[%mdl 512]}) 21... Rf8 22. Qg2 ({Avoid the trap} 22. Qxd4 $2 Bc5 $1 $19 {[%mdl 512]}) 22... Bc5 (22... Qb5 $142 23. Be3 Nf5) 23. Qxc6 Nxc6+ 24. Kg2 Rf2+ 25. Kh3 {[#]} Rf1 $1 26. Kg2 (26. a3 $142) 26... Rg1+ 27. Kf3 g6 28. Bg4 Ne5+ 29. Ke4 (29. Kf4 {is the only way for White.} Nd3+ 30. Ke4 Nxc1 31. Bf3) 29... Nxg4 30. b4 Nf6+ {White got outplayed after the opening. Accuracy: White = 36%, Black = 86%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.7"]
[White "Kaasen, Tor Fredrik"]
[Black "Vestby-Ellingsen, Mads"]
[Result "1/2-1/2"]
[ECO "B47"]
[WhiteElo "2401"]
[BlackElo "2351"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,94,15,45,23,41,31,30,32,21,20,29,30,32,31,37,8,54,43,78,61,68,68,69,67,88,76,70,72,82,47,47,20,60,64,91,90,84,73,67,72,93,120,96,39,39,0,-27,-14,46,24,37,-14,-6,-81,0,0,10,-68,0,0,0,-31,0,0,2,-45,-56,-88,-96,-83,-48,-229,-167,-215,-223,-173,-118,-129,-56,-47,-18,-45,-54]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. g3 a6 7. Bg2 h5 8. O-O {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} h4 9. Re1 hxg3 10. hxg3 {White has an edge.} d6 11. Nxc6 bxc6 12. e5 {Hoping for exd6.} d5 $1 13. Na4 $36 {[%mdl 2048] White is pushing.} Ne7 14. Bd2 Nf5 15. c4 {[#]} Qa7 $146 ({Predecessor:} 15... Be7 16. Rc1 Qd8 17. Bc3 a5 18. b3 Kf8 19. c5 Ra7 20. Qg4 Kg8 21. Rcd1 Qf8 {0-1 (49) Sanchez Vigon,D (2220)-Domingo Nunez,A (2373) Linares 2018}) 16. Rc1 {Black must now prevent cxd5.} Bd7 17. Ba5 Rb8 18. c5 g6 19. Bb6 Qb7 20. Rc3 Bc8 21. Rb3 Qe7 22. Qg4 Rh5 23. Nc3 Qg5 24. Qxg5 Rxg5 {[#]} 25. Ne2 $1 {Threatens to win with f4.} Ne7 26. Nd4 Bg7 27. f4 Rh5 28. Bf1 (28. Nf3 $16) 28... g5 $1 $14 29. Kg2 (29. Be2 $14 Rh8 30. Kg2) 29... gxf4 $11 30. gxf4 Kd7 (30... Bh6 $11) 31. Rg3 Bh6 $1 {[%cal Rh6f4]} 32. Rg4 (32. Be2 $14 Rh4 33. Rg4 Rxg4+ 34. Bxg4) 32... Ng6 33. Ne2 (33. Be2 $11 {keeps the balance.} Bxf4 34. Rxg6 Rh2+ 35. Kf3 Bxe5 36. Rg4) 33... Rh4 (33... Bb7 $17) 34. Rxh4 Nxh4+ 35. Kf2 (35. Kg3 $1 $11 Ng6 36. Bh3) 35... Bb7 (35... Ng6 $15) 36. Bh3 {With the idea Rh1.} Ng6 37. Kf3 (37. Rh1 $5 {[%cal Rh3e6]} Bxf4 38. Nxf4 Nxf4 39. Bf1 $11) 37... Rg8 38. Rh1 {Strongly threatening Bxe6+!} Bf8 39. Ke3 (39. Bf1 {with more complications.} a5 40. Ng3 Be7 41. Rh7 Nf8 42. Rh6) 39... Rh8 40. Bg2 Rxh1 41. Bxh1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 42. Kf3 $2 (42. Bf3 $15) 42... Ba6 43. Ng3 {[#]} a4 $1 44. Nh5 Bd3 (44... Bc4 $19 45. a3 Kc8) 45. Kg3 Bh6 (45... Bc4 $17 46. a3 Kc8) 46. Bf3 $15 Bc2 47. Be2 Kc8 {Accuracy: White = 61%, Black = 70%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.8"]
[White "Pena Riasco, Alexander"]
[Black "Kvaloy, Aksel Bu"]
[Result "0-1"]
[ECO "D00"]
[WhiteElo "2115"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,-6,-7,-14,1,-19,-5,-10,-8,-10,-9,-12,9,0,2,-20,-29,-36,-28,-66,-66,-66,-52,-66,-62,-62,-65,-87,-80,-93,-107,-157,-159,-188,-187,-172,-172,-162,-161,-162,-158,-399,-379,-698,-698,-673,-679,-675,-672,-632,-637,-630,-617,-577,-556,-568,-462,-766,-715,-1075,-1092,-2708,-2589,-2142,-2171,-29973,-29970]} 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nd2 Bd6 5. Bg3 O-O 6. Bd3 {D00: 1 d4 d5: Unusual lines.} c5 7. c3 Qc7 8. Bxd6 {The position is equal.} Qxd6 9. f4 b6 10. Ngf3 Bb7 11. O-O {[#]} Ne4 $146 ({Predecessor:} 11... Nc6 12. Ne5 Ne7 13. Qf3 a5 14. g4 Ba6 15. Bxa6 Rxa6 16. f5 exf5 17. gxf5 Nc6 18. Ng4 Nxg4 19. Qxg4 {1-0 (32) Williams,S (2444)-Fontaine,Q (2270) Novi Sad 2016}) 12. Bxe4 dxe4 13. Ng5 Qd5 14. Rf2 cxd4 15. cxd4 f5 $1 16. Nb1 Na6 17. Nc3 Qd7 18. Qb3 Nc7 19. Rc2 Nd5 20. Nxd5 Bxd5 21. Qa3 Rfc8 22. Rac1 Rxc2 23. Rxc2 h6 24. Nh3 Rc8 $36 {[%mdl 2048] Black is really pushing.} 25. Rxc8+ $2 {[#] This move loses the game for White.} (25. Rc3 $17) 25... Qxc8 $19 26. Qc3 $2 (26. Kh1 Qc2 27. g3) 26... Qxc3 27. bxc3 {If only White now had time for a3....} Bxa2 {[%mdl 4096] Endgame KB-KN} 28. Kf2 a5 {[%cal Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 29. Ke1 a4 30. Kd2 Bb3 31. Nf2 a3 {[#] ( -> ...a2)} 32. Kc1 Bc4 33. g4 (33. Kb1 $142 Kf8 34. h3) 33... Kf7 34. Nh1 g5 35. Ng3 gxf4 36. exf4 e3 37. gxf5 e2 {Accuracy: White = 50%, Black = 100%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.15"]
[Round "6.10"]
[White "Nilsen, Tobias Lang"]
[Black "Ranaldi, Lucas"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2170"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,38,20,22,20,12,18,22,-8,-8,-7,56,56,48,-6,55,-9,37,0,-1,0,20,0,35,-29,-30,-34,-33,-56,-28,-560,-541]} 1. e4 c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. Ne2 Qb6 {[%csl Ge4][%cal Rb6f2] [#]} 6. d4 {B11: Caro-Kann: Two Knights Variation.} e6 7. Ng3 c5 8. Bd3 {The position is equal. 8.Bd3 scores better than 8.c3.} Nxg3 $1 9. fxg3 Be7 (9... Nc6 $11) 10. O-O $14 Nc6 11. a3 ({White should try} 11. dxc5 $14 Bxc5+ 12. Kh1) 11... Bd7 {[#]} (11... cxd4 $11 12. Qe2 h6) 12. Kh1 $146 (12. dxc5 $1 $14 Bxc5+ 13. Kh1) ({Predecessor:} 12. dxc5 Qxc5+ 13. Kh1 O-O-O 14. b4 Qb6 15. Qe2 f6 16. c4 dxc4 17. Bxc4 fxe5 18. Be3 {½-½ (74) Ongut,T (2164)-Sernecki,F (2285) Budapest 2019}) 12... h6 13. g4 cxd4 14. Qe2 O-O-O 15. b4 f6 16. Bb2 (16. Bf4 $14) 16... Qc7 $36 {[%cal Rc6e5][%mdl 2048] Black is pushing.} 17. exf6 Bxf6 {Hoping for ...e5.} 18. b5 Ne5 19. Bxd4 $2 {[%mdl 8192] [#]} (19. Nxd4 $11 Kb8 20. Rae1) 19... Nxf3 {[%mdl 64] Discovered Attack. Accuracy: White = 49%, Black = 59%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.1"]
[White "Johansson, Linus"]
[Black "Djurhuus, Rune"]
[Result "0-1"]
[ECO "A53"]
[WhiteElo "2476"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,82,22,27,19,47,52,47,33,41,33,33,31,39,54,30,21,26,21,20,0,0,0,22,0,0,-6,0,-6,-6,-6,0,14,0,0,8,0,0,0,0,-50,0,-218,-189,-269,-260,-255,-249,-231,-87,-1478,-1487,-1441,-789,-1389,-1341,-1891,-1849,-2102,-2099,-1962,-1210,-1870,-1890,-1570,-1555,-1438,-1453,-1404,-1352,-1564,-1557,-1493,-1420,-1548,-1337]} 1. d4 Nf6 2. c4 d6 3. Nc3 Nbd7 4. e4 e5 5. d5 Nc5 6. Bd3 {A53: Old Indian Defence without Nf3.} Be7 7. Bc2 O-O 8. h3 {White is slightly better.} c6 9. Nf3 cxd5 10. cxd5 b5 11. b4 {[#]} Ncd7 $146 ({Predecessor:} 11... Na6 12. a3 Bd7 13. Bd3 Qb8 14. Be3 Qb7 15. O-O Rac8 16. Rc1 Nc7 17. Nd2 Nfe8 {1-0 (40) Reiter,H (1980)-Laske,E (2025) Austria 1998}) 12. Be3 Nb6 13. Nd2 Bd7 14. Bd3 a6 15. O-O Ne8 16. Nb3 Bg5 17. Qd2 Bxe3 18. Qxe3 Rc8 $36 {[%mdl 2048] White is under pressure.} 19. Rac1 Nc4 20. Bxc4 Rxc4 21. a3 f5 $1 22. Na5 f4 23. Qf3 $1 Rc7 24. Ne2 Qh4 25. Nc6 $2 (25. Rxc7 $1 $11 Nxc7 26. Rc1) 25... h5 $1 $19 26. Nb8 {[#]} (26. Rfd1 {was worth a try.}) 26... Bg4 $1 {[%cal Rg4f3]} 27. hxg4 hxg4 28. Qd3 {[#]} Rf6 (28... Rcf7 $1 $19 {has better winning chances. Threatens to win with ...f3.} 29. f3 (29. Nxa6 $2 f3 $19) 29... g3) 29. Rfd1 $2 {[%mdl 8192] White does not recover from this.} (29. f3 $17 Rh6 30. fxg4) 29... Rh6 {[%csl Gh6][%cal Rh4h1] Black is clearly winning.} 30. Kf1 Qh1+ 31. Ng1 Rh2 32. Ke2 Qxg2 {[%csl Gh2][%cal Rg2f2]} 33. Kd2 Qxf2+ 34. Ne2 f3 {[%mdl 64] Pin} 35. Rxc7 Qxe2+ 36. Qxe2 Rxe2+ 37. Kd3 Nxc7 38. Nc6 Kf7 39. Rc1 Ne8 40. Nd8+ Kg6 41. Ne6 g3 {Accuracy: White = 66%, Black = 81%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.2"]
[White "Haldorsen, Benjamin"]
[Black "Haug, Johannes"]
[Result "1/2-1/2"]
[ECO "A30"]
[WhiteElo "2458"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,53,7,14,0,14,6,8,8,8,10,30,8,31,25,56,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6 6. b3 Bg7 7. Bb2 O-O 8. Nc3 d5 9. Nxd5 Nxd5 10. Bxg7 Kxg7 11. cxd5 Qxd5 12. d4 cxd4 13. Qxd4+ Qxd4 14. Nxd4 Bxg2 15. Kxg2 Rc8 16. Rfc1 {A30: Symmetrical English: Double Fianchetto and Hedgehog.} Na6 17. a3 Nc5 18. b4 {[#]} Na4 $146 ({Predecessor:} 18... Rd8 19. Nc6 Rd6 20. Nxe7 Nb3 21. Rd1 Re6 22. Rab1 Rxe7 23. Rxb3 Ree8 24. Rd7 a5 25. Rf3 Rf8 26. Rd6 axb4 27. axb4 Rfb8 28. Rd7 Rf8 29. Rb7 {½-½ (29) Schneider,L (2375)-Rath,U (2420) Esbjerg 1977}) 19. Nb5 a5 20. Rab1 Rab8 21. Kf3 f5 22. Na7 ({Better is} 22. e4 $14) 22... Rc3+ $11 {The position is equal.} 23. e3 axb4 24. axb4 b5 25. Rxc3 Nxc3 26. Rc1 Nd5 27. Rc5 {Accuracy: White = 90%, Black = 88%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.3"]
[White "Mihajlov, Sebastian"]
[Black "Notkevich, Benjamin Arvola"]
[Result "0-1"]
[ECO "C15"]
[WhiteElo "2389"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "68"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,68,12,14,18,16,29,18,2,10,0,22,16,73,87,80,62,60,72,82,77,142,142,153,152,211,97,127,71,63,40,57,45,55,-69,-72,-74,-85,-72,-72,-81,-85,-83,-76,-146,-135,-131,-132,-341,-339,-419,-200,-413,-419,-397,-415,-384,-364]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. Nge2 dxe4 5. a3 Be7 6. Nxe4 Nf6 7. Nxf6+ Bxf6 8. Be3 {C15: French: 3 Nc3 Bb4: Unusual White 4th moves.} O-O 9. Qd3 b6 10. O-O-O {[#] The position is equal.} Bb7 $146 ({Predecessor:} 10... Ba6 11. Qe4 Nd7 12. g4 Qc8 13. Rg1 c5 14. g5 Be7 15. d5 Bb7 16. Nc3 Re8 {1-0 (23) Rathnakaran,K (2469)-Van Osch,M (2288) Hoogeveen 2016}) 11. Rg1 Nd7 12. g4 Rc8 (12... g6 $11) 13. g5 $16 Be7 14. Bg2 Bxg2 15. Rxg2 b5 16. d5 e5 (16... Nb6 $142) 17. Qxb5 ({Of course not} 17. Bxa7 $6 b4 $11) 17... Rb8 18. Qc6 f5 (18... Nb6 $16 {was necessary.} 19. Nc3 Qc8) 19. f4 ({Not} 19. Bxa7 Ra8 $11) (19. gxf6 $1 $18 Rxf6 20. Qc4 (20. Bxa7 Rxc6 21. dxc6 Bd6 $17)) 19... Bd6 20. fxe5 ({White should try} 20. Bxa7 Ra8 21. Be3) 20... Nxe5 {[%cal Bd7e5,Be5g4,Bg4f2,Bf2d3][%mdl 32]} 21. Qc3 $1 Qe7 $1 {White must now prevent ...Nc4!} 22. Bf4 Ng4 23. h3 (23. Bxd6 $14 cxd6 24. Nd4) 23... Qe4 $1 $15 {[%cal Re4g2][%mdl 64] Double Attack} 24. Bxd6 cxd6 25. Rgg1 Rfc8 $1 {[%cal Rc8c3]} 26. Qd3 {[#]} Nf2 $1 {[%cal Rf2d3]} 27. Qxe4 fxe4 28. Rd4 {[#]} (28. Rdf1 $142 Nd3+ {[%mdl 64] Double Attack} 29. Kd2 Nxb2 30. Nd4) 28... Nd3+ $1 $40 {[%mdl 128] Black wants a kill.} 29. Kd2 Rxb2 30. Rxe4 $2 (30. Nc3 $17) 30... Nf2 $19 {[%mdl 64] Double Attack} 31. Re3 {Threatens to win with Nc3.} Rcxc2+ 32. Ke1 {[#]} Nxh3 $1 {[%mdl 512] Black is winning.} 33. Rxh3 {Re3 is the strong threat.} Rxe2+ 34. Kd1 Rg2 {Black used his chance. Accuracy: White = 68%, Black = 87%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.4"]
[White "Risting, Eivind Olav"]
[Black "Pantzar, Milton"]
[Result "0-1"]
[ECO "D31"]
[WhiteElo "2300"]
[BlackElo "2417"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,66,21,32,27,27,33,33,25,25,30,31,18,18,22,31,31,30,19,12,0,0,0,0,0,0,0,0,-64,-14,-16,-9,-8,-20,-34,-26,-81,-91,-56,-96,-204,-205,-189,-196,-302,-312,-335,-325,-359,-352,-392,-386,-513,-385,-405,-335,-29943,-12839,-12833,-12819]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 h6 6. Bf4 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Nf6 7. e3 Bd6 8. Be5 {White is slightly better.} c6 9. Bd3 O-O {[#]} 10. Qc2 $146 ({Predecessor:} 10. h3 Bxe5 11. Nxe5 Nbd7 12. f4 c5 13. Qf3 cxd4 14. exd4 b5 15. O-O Bb7 16. Kh2 {½-½ (30) Liu,Y (2524)-Gukesh,D (2535) Shanghai 2019}) 10... Re8 11. O-O Bg4 {Black wants to play ...Bxf3.} 12. Bxd6 Qxd6 13. Ne5 c5 14. Nxd5 Nxd5 ({Much worse is} 14... Qxd5 $6 15. Bc4 $16) 15. Nxg4 cxd4 16. exd4 Nc6 17. Rad1 Rad8 18. h3 ({Better is} 18. Qc5 $11) 18... Ndb4 (18... Nf4 $5 {[%cal Rc6d4]} 19. Kh1 Nxd4 $17) 19. Qb1 Nxd4 20. Bh7+ Kh8 21. a3 Nbc6 22. Be4 {[#]} (22. Bd3 $11) 22... Rxe4 $1 $17 {[%mdl 576] Remove Defender, Decoy} 23. Qxe4 {Black must now prevent Ne3.} f5 $36 {[%mdl 2112] Double Attack. Black has strong initiative.} 24. Qe3 (24. Nxh6 $17 Qxh6 25. Qb1) 24... fxg4 $19 25. hxg4 Qg6 26. Qh3 (26. Rde1 {keeps fighting.}) 26... Ne2+ 27. Kh1 Ncd4 28. Qh5 Qe4 29. Qh4 Rd5 30. Rfe1 Rg5 31. f3 Qf4 {And now ...Nf5! would win.} 32. Qh2 $2 (32. Rxd4 $19 Nxd4 33. Qh2) 32... Ng3+ 33. Kg1 Nde2+ {Accuracy: White = 50%, Black = 93%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.5"]
[White "Kvaloy, Aksel Bu"]
[Black "Urkedal, Frode Olav Olsen"]
[Result "0-1"]
[ECO "C47"]
[WhiteElo "2164"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,52,-8,-14,-29,-27,-41,-16,-16,-10,-33,-34,-77,-72,-36,-23,-309,-200,-337,-331,-334,-319,-681,-662,-1580,-1579,-29994,-29995,-29996,-29997]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 O-O 9. O-O cxd5 10. Bg5 c6 11. Na4 h6 12. Bh4 Re8 13. c3 Bd6 14. b4 {C47: Scotch Four Knights and Four Knights with 4 g3.} a5 15. a3 axb4 16. axb4 {The position is equal.} Ra7 17. Bc2 Ba6 {And now ...g5 would win.} 18. Nc5 {[#]} Bxf1 $146 ({Predecessor:} 18... Be2 19. Qd2 Qb8 20. Bxf6 Bxh2+ 21. Kh1 Bf4 22. Qd4 gxf6 23. Rxa7 Re5 24. f3 Be3 25. Qg4+ Rg5 26. Rfa1 Rxg4 27. fxg4 Qg3 28. Ra8+ Kg7 {0-1 (28) Wegener,D (2295)-Giorgadze,G Cuxhaven 1993}) 19. Rxa7 Be2 $36 {[%mdl 2048] White is under pressure.} 20. Qd4 $2 {[%mdl 8192] [#] This move loses the game for White.} (20. Qa1 $1 $11) 20... Bxh2+ $1 {[%mdl 576] Decoy} 21. Kxh2 (21. Kh1 {is the only way for White.} Be5 22. Qe3) 21... Qb8+ $19 {[%mdl 64] Double Attack} 22. Bg3 Qxa7 23. f3 $2 {[#]} (23. Bf5) 23... Bxf3 $1 24. Bh4 {[#]} (24. gxf3 Re2+) 24... Re2 $1 {[%mdl 64] Double Attack} 25. Qd3 Rxg2+ 26. Kh3 Qc7 {Accuracy: White = 22%, Black = 71%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.6"]
[White "Nilsen, Joachim Birger"]
[Black "Kaasen, Tor Fredrik"]
[Result "1-0"]
[ECO "A45"]
[WhiteElo "2411"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,96,-4,-6,-2,-12,0,0,0,14,-18,-8,-29,-20,-25,-22,-35,-11,-23,-16,-24,-12,-27,-1,-60,-72,-72,-68,-61,-54,-68,-64,-141,-136,-142,-129,-142,-128,-133,-72,-72,-72,-72,-72,-79,-85,-92,-92,-93,-93,-118,-118,-118,-118,-126,-125,-508,-477,-365,-365,-364,-339,-258,-301,-228,-147,-147,-148,-155,-155,-155,0,0,0,0,0,0,0,0,29978,29979,29979,29980,29980,29981,29981,29982,29982,29983,29990]} 1. d4 Nf6 2. Bf4 g6 3. Nc3 d5 4. e3 Bg7 5. h4 c6 6. Be2 {A45: Trompowsky Attack.} h5 7. Nf3 Qb6 8. a3 {The position is equal.} Bg4 9. O-O {[#]} Nbd7 $146 ({Predecessor:} 9... Bxf3 10. Bxf3 Nbd7 11. Rb1 O-O 12. b4 Rfe8 13. Na4 Qd8 14. Nc5 b6 15. Nxd7 Qxd7 {½-½ (57) Tran,M (2366)-Zhao,J (2599) Hanoi 2018}) 10. Qd2 O-O 11. Ne5 Bxe2 12. Qxe2 a5 13. b3 Rac8 14. Rad1 e6 15. e4 Rfd8 16. Rfe1 (16. Be3 $11) 16... Nxe5 $15 17. Bxe5 Nxe4 18. Nxe4 {And now Nf6+ would win.} Bxe5 19. dxe5 {Threatens to win with Nd6.} dxe4 20. Rd6 (20. Qxe4 $15 Rd5 21. Qe2) 20... Rxd6 $17 21. exd6 {[%mdl 4096] Endgame KQR-KQR} Rd8 22. Rd1 Qc5 $1 23. d7 Qxa3 ({Black should play} 23... e3 24. fxe3 Qxa3) 24. Qxe4 Qe7 25. Qd4 e5 26. Qd2 b5 27. g3 a4 28. bxa4 bxa4 29. Qa5 Rxd7 30. Rxd7 Qxd7 31. Qxa4 {KQ-KQ} Qd1+ 32. Kh2 $2 {[%mdl 8192]} (32. Kg2 $17 {was the crucial defense.}) 32... Qd4 $1 $19 {[%cal Rd4a4]} 33. Qxc6 Qxf2+ 34. Kh3 Qf1+ 35. Kh2 Qe2+ $1 36. Kh3 e4 37. Qe8+ Kg7 38. Qe5+ Kh7 $1 39. Qf4 {[#]} Qf3 $2 ({And not} 39... Qxc2 40. Qxf7+ Kh8 41. Qf8+ Kh7 42. Qf7+ Kh8 43. Qf8+ Kh7 44. Qf7+ $11) ({Better is} 39... Qc4 $1 $17 {aiming for ...Qc8+.} 40. c3 Qd5) 40. Qxf3 $1 $11 exf3 {KP-KP} 41. Kh2 $1 f6 (41... Kg7 $5 42. Kg1 $8 {[#]} f2+ $1 {[%mdl 512]} 43. Kxf2 Kf6 $11) 42. c4 {Black must now prevent c5.} Kg7 {...Kf7 is the strong threat.} (42... Kg8 $5 43. Kg1 $8 Kf7 $11) 43. Kg1 g5 $2 {[%mdl 8192]} (43... Kf7 $11 44. Kf2 Ke6 45. Kxf3 Kd6) 44. c5 {White mates.} Kf7 45. c6 Ke7 {[#]} 46. g4 $1 {[%mdl 512]} hxg4 47. h5 Kd6 48. h6 Kd5 {Accuracy: White = 79%, Black = 83%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.7"]
[White "Ranaldi, Lucas"]
[Black "Holm, Kristian Stuvik"]
[Result "1-0"]
[ECO "E99"]
[WhiteElo "2353"]
[BlackElo "2462"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,97,12,11,0,29,13,42,52,60,44,58,0,50,52,41,35,52,37,31,43,50,45,72,48,59,0,53,53,51,42,99,92,82,110,98,114,97,88,102,105,222,214,257,214,289,297,415,370,337,219,289,289,514,510,491,481,472,294,257,0,0,0,4881,2688,6087,5189,29962,11729,5834,5834]} 1. c4 g6 2. d4 Bg7 3. e4 d6 4. Nf3 Nf6 5. Nc3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3 f5 11. f3 f4 12. Bf2 g5 13. Rc1 Ng6 14. c5 Nxc5 15. b4 Na6 $1 16. Nd3 {E99: King's Indian: Classical Main Line: 9 Ne1 Nd7 10 f3 f5.} Rf7 17. Nb5 h5 18. Nxa7 {White is slightly better.} Bd7 19. a4 Bf8 20. Nc6 (20. Kh1 $14) 20... bxc6 21. dxc6 {[#]} Bc8 $146 ({Predecessor:} 21... Be6 22. b5 Nc5 23. Nxc5 dxc5 24. Qxd8 Rxd8 25. a5 g4 26. b6 cxb6 27. axb6 g3 28. Bxc5 {1-0 (47) Ostmoe,G (2434)-Berg,E (2608) Oslo 2011}) 22. b5 Rg7 23. bxa6 Bxa6 24. Kh1 Kh7 25. Re1 Nh8 26. Nb4 Bc8 $1 27. Ra1 g4 28. g3 $1 Nf7 29. Nd5 $1 fxg3 ({Better is} 29... Ng5 $14) 30. hxg3 $16 Nh6 31. f4 exf4 32. Nxf4 h4 33. Kg2 Qg5 34. Qd5 Be7 (34... Nf7 $16 {keeps fighting.}) 35. Bd4 $1 $18 Rf7 36. Rf1 {gxh4 is the strong threat.} Ba6 37. Bxa6 $1 h3+ 38. Kg1 Rxa6 39. Qb5 $40 {[%mdl 128] White attacks with force.} Ra5 40. Qd3 (40. Qb8 Bf6 $11) 40... Kg8 $2 (40... Qg8 41. Kh2 Bg5 42. e5+ Rf5 43. Nxh3 Qg6) 41. Ne6 Qg6 42. Nxc7 d5 43. Rxf7 Nxf7 44. Bc3 $2 (44. Nxd5 Rxd5 45. c7 Rxd4 $1 $11 {[%mdl 512]}) (44. Nb5 $18 {Strongly threatening c7.} Ra6 45. c7) 44... dxe4 $11 45. Qd7 Qg5 $2 {[%mdl 8192] [#]} (45... e3 $11 46. Nd5 (46. Bxa5 Qc2 $11) (46. Qxe7 {is a self mate.} h2+ 47. Kh1 Qxc6+ {[%mdl 64] Double Attack} 48. Kxh2 Rh5+ 49. Qh4 Rxh4+ 50. gxh4 Qxc7+ 51. Kh1 Qxc3 52. Rb1 e2 53. Kg1 e1=Q+ 54. Rxe1 Qxe1+ {[%mdl 64] Double Attack} 55. Kh2 Qf2+ 56. Kh1 g3 57. h5 Qh2#) (46. Qe8+ Bf8 $15) 46... h2+ 47. Kh1 Qe4+ 48. Kxh2 Qc2+ 49. Kh1 Rxd5 {[%mdl 64] Remove Defender} 50. Qxd5 Qxc3) 46. Rf1 $1 $18 {White wants to mate with Qe8+.} ({Less strong is} 46. Qe8+ Bf8 $18) 46... Qc5+ {[#]} 47. Kh1 $1 {[%mdl 512] Intending Qe8+ and mate.} Qc4 48. Qe8+ Bf8 49. Rxf7 {Accuracy: White = 85%, Black = 44%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.8"]
[White "Vestby-Ellingsen, Mads"]
[Black "Sjoberg, Isak"]
[Result "0-1"]
[ECO "A49"]
[WhiteElo "2351"]
[BlackElo "2189"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,111,59,0,0,-12,21,24,16,19,62,-33,0,-13,-2,-35,-30,-25,-16,-17,-18,-18,-20,-25,-29,-30,-27,-70,-9,-10,-9,-9,-9,-9,-9,-7,-10,-32,0,0,0,-14,-8,-13,-12,-9,0,-9,-21,-12,-4,-12,0,-79,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-19,0,-109,-33,-40,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-4,0,-8,-12,-27,0,0,0,0,0,0]} 1. Nf3 Nf6 2. g3 g6 3. b3 Bg7 4. Bb2 O-O 5. Bg2 d6 6. d4 e5 7. dxe5 Nfd7 8. c4 (8. Nc3 $14) 8... dxe5 $11 {A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} 9. Qd2 {[#]} a5 $146 ({Predecessor:} 9... e4 10. Ng1 e3 11. fxe3 Ne5 12. Qxd8 Rxd8 13. Nd2 Na6 14. O-O-O Ng4 15. Bxg7 Kxg7 16. Ne4 Rxd1+ 17. Kxd1 f5 18. h3 Nxe3+ 19. Kd2 Nxg2 20. Ng5 h6 21. N5f3 f4 22. Rh2 Ne3 {0-1 (22) From,S (2285)-Olsen,H (2200) Copenhagen 1993}) 10. Nc3 c6 {White has an edge.} 11. Rd1 Qe7 12. e4 ({White should try} 12. O-O $14) 12... Na6 13. Na4 Nac5 {With the idea ...Nxa4.} 14. Nxc5 Nxc5 15. Qe3 $1 Bg4 16. O-O Ne6 17. Rd2 Bxf3 18. Qxf3 a4 19. Rfd1 axb3 20. Rd7 Qb4 (20... Qe8 $15 21. axb3 Nd4 22. Bxd4 Qxd7) 21. Qxb3 Qxb3 22. axb3 Nc5 23. Rc7 $1 Rfd8 24. Rxd8+ Rxd8 25. Bf3 h5 26. b4 Nb3 {Strongly threatening ...Rd2.} 27. b5 Rd2 28. Ba3 Nd4 29. Bg2 cxb5 30. cxb5 Nxb5 31. Rc8+ Kh7 32. Be7 Nd4 33. Bf1 (33. Rc7 $11) 33... Rb2 (33... Bh6 $1 $17 {Threatens to win with ...Nf3+.} 34. Bf6 Nf3+ 35. Kg2 Ne1+ 36. Kg1 g5) 34. Kg2 b5 35. Rb8 Nc6 36. Rb7 Nxe7 37. Rxe7 {[%mdl 4096] Endgame KRB-KRB} f5 38. exf5 gxf5 39. Rb7 b4 40. Bc4 e4 41. Kf1 h4 42. Rb5 {[#]} (42. gxh4 $11 {keeps the balance.} Kh6 43. Rb6+ Kh5 44. Rb5) 42... Kg6 (42... f4 $1 $17 {[%cal Rf4f3][%mdl 512] Hoping for ...f3.} 43. gxf4 Bd4) 43. Be6 $15 Bd4 (43... Be5 $5 44. g4 (44. Rxe5 Kf6 $17) 44... Kf6 45. Bxf5 Bd4 46. Bxe4 Rxf2+ {[%mdl 64] Double Attack} 47. Ke1 Rxh2 $15) 44. Bxf5+ Kf6 45. Bxe4 Rxf2+ 46. Ke1 Rxh2 47. gxh4 Bc3+ 48. Kd1 Rxh4 49. Bd3 Rh2 {aiming for ...Rd2+.} 50. Bc4 Ke7 51. Rd5 Rb2 52. Kc1 Rg2 53. Kb1 b3 {[%mdl 64] Decoy} 54. Bxb3 {The position is equal.} Rb2+ 55. Kc1 Rxb3 56. Kc2 {[%mdl 32768] Accuracy: White = 85%, Black = 82%. . Sensor Board Error (Ke4/e5)?} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.9"]
[White "Aarnes, Eirik"]
[Black "Fossan, Aleksander"]
[Result "1-0"]
[ECO "B29"]
[WhiteElo "1902"]
[BlackElo "2240"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,105,32,16,10,45,54,79,51,54,42,67,34,45,27,33,33,33,33,87,83,87,85,99,63,74,45,136,30,32,8,7,6,6,0,0,0,0,0,25,0,48,58,120,109,86,68,240,227,249,247,380,369,1186,1181,1038,442,409,419,446,375,509,506,493,489,618,613,605,603,740,737,715,714,800,681,667,660,654,596,601,595,654,623,640,622,627,609,752,695,1472,1397,4722,29956,29983,29984,29980,29981,29994,29995]} 1. e4 c5 2. Nf3 Nf6 3. Nc3 d5 4. exd5 Nxd5 5. Bb5+ Bd7 6. Bc4 {B29: Sicilian: 2 Nf3 Nf6 (Nimzowitsch Variation).} Nxc3 7. dxc3 {And now Ng5 would win.} e6 {[#]} 8. Ne5 $146 {White is better.} ({Predecessor:} 8. O-O Be7 9. Qe2 Nc6 10. Bf4 Qb6 11. Rab1 Rd8 12. b4 cxb4 13. cxb4 a6 14. a3 {1-0 (28) Donate Moreno,S (1752)-Gonzalez Lopez,F (1433) Cuenca 2019}) 8... Nc6 9. Nxd7 Qxd7 10. Qe2 Bd6 11. Bg5 Qc7 12. g3 O-O 13. Bd3 a6 (13... Ne5 $14) 14. O-O-O $16 Ne5 15. Be4 Rae8 16. f4 {aiming for Rxd6.} Ng6 {[%cal Be5g6,Bg6e7,Be7f5][%mdl 32]} 17. h4 h6 ({Black should try} 17... f5 $14 18. Bf3 Nh8) 18. h5 (18. Bxg6 $1 $16 {Be4 is the strong threat.} fxg6 19. h5) 18... Ne7 $1 $11 19. Bh4 c4 20. Rd4 b5 21. Rhd1 $36 {[%mdl 2048] White fights for an advantage.} Nf5 $1 {[%cal Rf5d4]} 22. Bxf5 exf5 23. Qg2 Bc5 24. Rd7 Qa5 25. Qd5 b4 ({Better is} 25... Qb6 $1 $14) 26. cxb4 ({Reject} 26. Qxc4 $6 bxc3 27. Qxc3 Be3+ 28. Kb1 Qxc3 $11) 26... Qxb4 27. Rb7 Be3+ $2 {Black cannot hold the game after this.} (27... Bb6 $14 28. a3 Qc5) 28. Kb1 $18 Qc5 {[#]} 29. Qd7 $1 c3 (29... Bf2 {was worth a try.} 30. Be7 Rxe7 31. Qxe7 Qxe7 32. Rxe7 Bxg3) 30. Be7 {[%mdl 64] Double Attack} Qa5 $2 (30... Qxe7 31. Qxe7 Rxe7 32. Rxe7 Bd2) 31. Bxf8 Rxf8 32. Qc7 (32. Rd5 $142 Bc5 {[#]} 33. b4 $1 {[%mdl 512]} Qxb4+ 34. Rxb4 Bxb4 35. Rxf5) 32... Qxc7 33. Rxc7 cxb2 34. Kxb2 {[%mdl 4096] Endgame KRR-KRB} Bf2 35. Rd3 Rb8+ 36. Kc1 g6 37. hxg6 fxg6 38. Rd6 {[%mdl 64] Double Attack} g5 39. Rg6+ {[%mdl 64] Double Attack} Kf8 40. Rxh6 {[%cal Rh6h8]} Bd4 41. fxg5 a5 42. Rd7 Bc3 43. Kd1 Re8 {[%csl Gc3][%cal Re8e1]} 44. Rh1 Re4 45. Rf1 Kg8 46. Rc7 Re3 47. a4 Bb4 48. c4 Ra3 49. Rxf5 Rxa4 50. g6 Bd6 {White mates.} 51. Rd7 Ra1+ 52. Kc2 Ba3 53. Rff7 {Accuracy: White = 83%, Black = 46%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.16"]
[Round "7.10"]
[White "Gjestemoen-VonHirsch, Andre"]
[Black "Tunsjo, Axel"]
[Result "1-0"]
[ECO "B15"]
[WhiteElo "2077"]
[BlackElo "2149"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,91,12,12,12,4,6,9,16,0,0,0,0,0,0,-18,-19,-54,-51,-64,-66,-60,-62,-87,-75,-74,-62,-62,-62,-62,-66,-74,-74,-99,-99,-98,-100,-94,-1,-2,0,0,0,0,0,0,0,0,1233,1053,5165,4752,5165,2190,29975,29976,29976,29977,29977,29978,29978,29979,29979,29980,29980,29981,29981,29982,29983,29984,29984,29985,29992,29993,29993,29994,29997,29998]} 1. e4 c6 2. Nc3 g6 3. d4 Bg7 4. h3 d5 5. Nf3 dxe4 6. Nxe4 Nf6 7. Nxf6+ exf6 8. Bc4 O-O 9. O-O a5 {now scores much better than the old 9...Nd7. B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6.} 10. a4 Na6 {[%cal Bb8a6,Ba6c7,Bc7e6][%mdl 32]} 11. Re1 Nc7 {[#] The position is equal.} 12. Bd2 $146 ({Predecessor:} 12. c3 Nd5 13. Bd2 Be6 14. Qb3 Qd7 15. Rad1 Rfb8 16. Qc2 b5 17. axb5 cxb5 18. Bf1 {0-1 (58) Florstedt,J (2337)-Muse,M (2391) Germany 2019}) 12... Be6 13. Qe2 Re8 14. Bxe6 Nxe6 15. c4 Qd7 16. Qd3 f5 {[%cal Re6d4]} 17. Bc3 {[#]} Nxd4 $1 {[%mdl 512]} 18. Rxe8+ (18. Bxd4 c5) 18... Rxe8 19. Bxd4 {Hoping for Qc3.} c5 $1 20. Qd2 Bxd4 21. Nxd4 Qxd4 22. Qxd4 cxd4 $17 {[%mdl 4096] Endgame KR-KR} 23. Kf1 Re6 24. b3 Kg7 25. Rd1 Re4 26. Rd3 Kf6 ({Black should try} 26... h5 $17) 27. f3 $11 Re3 28. Rxe3 dxe3 {KP-KP} 29. f4 $1 g5 (29... Ke6 $5 30. Ke2 $8 Kd6 31. Kxe3 Kc5 $11) 30. g3 $1 gxf4 (30... Ke6 $5 31. Ke2 $8 (31. fxg5 $2 Ke5 $19) 31... Kd6 32. Kxe3 (32. fxg5 Kc5 $11) 32... gxf4+ 33. gxf4 (33. Kxf4 $2 Kc5 $19) 33... Kc5 $11) 31. gxf4 Kg6 $2 {[%mdl 8192] Black is on the road to losing.} (31... Ke7 $11 32. Ke2 Kd6 33. Kxe3 Kc5) 32. Ke2 $18 Kh5 33. Kxe3 Kh4 {[#]} 34. c5 (34. b4 $142 $1 {[%mdl 512]} axb4 35. a5 Kxh3 36. Kd3) 34... Kxh3 {[#]} 35. b4 $1 {[%mdl 512] White mates.} axb4 36. a5 b3 37. Kd3 b2 38. Kc2 Kg2 39. c6 {[%mdl 64] Deflection, Promotion} bxc6 40. a6 h5 41. a7 h4 42. a8=Q h3 43. Qxc6+ Kg1 44. Qf3 h2 {[#]} 45. Qg3+ $1 Kh1 46. Qf2 {Accuracy: White = 84%, Black = 73%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.1"]
[White "Djurhuus, Rune"]
[Black "Haug, Johannes"]
[Result "0-1"]
[ECO "D03"]
[WhiteElo "2437"]
[BlackElo "2431"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,110,13,13,16,12,10,-17,2,-27,-25,-18,0,0,0,0,12,0,-8,-6,0,-5,0,-7,0,0,0,0,0,0,0,-9,0,1,9,0,0,-46,-44,-35,-47,-40,-41,-51,-25,-36,-19,-19,-19,-24,-12,-32,-7,-7,0,0,0,0,0,-84,-98,-85,-86,-152,-141,-265,-268,-386,-372,-466,-430,-493,-481,-757,-286,-615,-557,-659,-643,-675,-564,-762,-715,-654,-616,-1215,-946,-2355,-2349,-2238,-2184,-2081,-2047]} 1. d4 Nf6 2. Bg5 e6 3. Nd2 h6 4. Bh4 d5 5. e3 c5 6. c3 Be7 7. Bd3 b6 8. Ngf3 Bb7 9. Ne5 O-O 10. O-O Nbd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 11. f4 Ne4 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5.} 12. Bxe7 Qxe7 13. Qc2 {[%cal Rd2e4]} Ndf6 {The position is equal.} 14. Rf3 Nd6 15. Raf1 {[#]} cxd4 $146 ({Predecessor:} 15... Nfe4 16. Rh3 Qe8 17. Nxe4 dxe4 18. Be2 Rc8 19. Qd2 cxd4 20. exd4 Bd5 21. a3 Rc7 22. Rc1 b5 23. Ng4 {½-½ (23) Csiszar,Z (2220)-Kovacs,T Paks 1995}) 16. exd4 Nfe4 17. Rh3 Qe8 18. Qd1 f6 19. Ng4 Bc8 20. Re3 ({But not} 20. Nxh6+ gxh6 21. Qe1 (21. Qg4+ $2 Kf7 $19) 21... Bb7 $15) 20... Bd7 21. Qe2 Rc8 22. Nf2 {[%cal Rf2e4]} f5 23. Nf3 Bb5 24. Ne5 Rc7 25. Rh3 (25. Bxb5 {is interesting.} Qxb5 26. Qxb5 Nxb5 27. a4 Nbd6 28. h4) 25... Rf6 (25... Bxd3 {seems wilder.} 26. Nfxd3 b5 27. a3 a5 28. Ra1 Nc4) 26. Bxb5 Qxb5 27. Qxb5 (27. Qc2 {with more complications.} Nc4 28. Nfd3 Qa6 29. Ra1 Nxe5 30. Nxe5 b5 31. Qe2) 27... Nxb5 28. Nxe4 fxe4 29. g4 Nd6 30. g5 hxg5 31. fxg5 Rxf1+ 32. Kxf1 Nc4 33. Nxc4 Rxc4 $11 {[%mdl 4096] Endgame KR-KR} 34. g6 Rc8 35. Ke2 Rf8 36. c4 Rf6 37. c5 {Rc3 is the strong threat.} Rxg6 {Strongly threatening ...bxc5.} 38. c6 {aiming for c7.} Rf6 $1 39. c7 (39. b4 $11 {remains equal.}) 39... Rf8 $17 {Black keeps a firm grip on the game.} 40. Ra3 {[#]} a5 $1 41. Rc3 (41. Rb3 $142 Rc8 42. Rxb6) 41... Rc8 42. Ke3 {[#]} (42. h4 $17) 42... g5 $1 $19 43. Kf2 (43. Kd2 {was worth a try.}) 43... Kf7 44. Kg3 Ke7 45. Kg4 Kd6 46. Kxg5 (46. Rb3 $142 e5 47. dxe5+ Kxe5 48. Rxb6 Rxc7 49. Rb8) 46... Rxc7 $2 (46... e5 47. dxe5+ Kxe5) 47. Rb3 $2 (47. Rxc7 Kxc7 48. Kf4) 47... Rb7 {Black is clearly winning.} 48. Kf6 a4 49. Rg3 {White hopes to continue with h4.} Rb8 50. Kf7 Rh8 51. h3 Rh6 52. b4 e5 53. Kg7 exd4 54. Kxh6 d3 55. Rg6+ Ke5 {Accuracy: White = 49%, Black = 92%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.2"]
[White "Pantzar, Milton"]
[Black "Johansson, Linus"]
[Result "0-1"]
[ECO "E15"]
[WhiteElo "2417"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,52,10,6,6,8,18,12,8,8,43,-16,-10,-23,-25,-97,-86,-98,-15,-124,-129,-112,-89,-92,-76,-109,-115,-185,-184,-489,-489,-818,-810,-1465,-1456,-1457,-1456,-1449,-1320,-1207,-1179]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 d5 6. cxd5 exd5 7. Bg2 Bb4+ 8. Bd2 Bxd2+ {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations.} 9. Qxd2 Ne4 10. Qc2 O-O {The position is equal.} 11. O-O c5 12. dxc5 {[#]} ({White should play} 12. Nc3 $14) 12... Qf6 $146 ({Predecessor:} 12... bxc5 13. Ne5 Qf6 14. f4 Nc6 15. Nxc6 Qxc6 16. Nd2 f5 17. Nf3 Rad8 {1-0 (17) Karolyi,T (2420)-Podlesnik,B (2380) Maribor 1987}) 13. Nbd2 Nc3 $1 {[%cal Rc3e2]} 14. Rfe1 (14. Kh1 $11) 14... Nc6 15. a3 bxc5 (15... Nxe2+ $17 16. Kh1 Ncd4 17. Nxd4 Nxd4) 16. e4 {[#]} (16. Kh1 $11) 16... Nd4 $1 $36 {[%cal Rd4c2][%mdl 2048] Keeping White busy.} 17. Nxd4 cxd4 {[%cal Bc5d4,Bd4d3][%mdl 32]} 18. e5 Qb6 {...Ne2+ is the strong threat.} 19. Qf5 d3 20. Kf1 (20. Kh1 $17 {keeps fighting.}) 20... Qh6 21. f4 $2 (21. Qf4 Qxh2 22. Qh4 Qxh4 23. gxh4) 21... Ne2 $19 {[#] Threatens to win with ...Qb6.Black is clearly winning.} 22. Nf3 (22. e6 $142 fxe6 23. Qh3) 22... Qb6 {White must now prevent ...Rac8.} 23. Rad1 Rac8 {Strongly threatening ...d2.} 24. Rd2 Rc2 {( -> ...Rxd2)} 25. Red1 Rxd2 26. Rxd2 Rc8 {Accuracy: White = 31%, Black = 85%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.3"]
[White "Notkevich, Benjamin Arvola"]
[Black "Nilsen, Joachim Birger"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2476"]
[BlackElo "2411"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,19,8,-4,0,0,0,0,0,0,-1,-10,-4,-13,-14,-18,-5,-8,8,0,4,1,0,0,0,0,4,0,18,14,25,19,20,27,32,2,11,8,8,14,14,2,8,0,0,0,0,-87,-83,-102,0,0,0,0,0,0,4,0,0,0,4,4,32,32,32,4,21,0,38,35,74,74,74,74,81,81,81,19,19,0,0,0,0,0,0]} 1. d4 d5 2. Nf3 e6 3. g3 Nf6 4. Bg2 b5 5. O-O Bb7 6. Nbd2 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} Nbd7 7. a4 b4 8. c4 bxc3 9. bxc3 c5 10. a5 Rc8 11. a6 Ba8 {[#]} 12. Qa4 $146 ({Predecessor:} 12. c4 Be7 13. Bb2 O-O 14. e3 dxc4 15. Nxc4 Bd5 16. Nfe5 cxd4 17. Bxd5 exd5 18. Nxd7 dxc4 19. Nxf6+ Bxf6 20. Bxd4 Bxd4 21. Qxd4 Qxd4 22. exd4 {0-1 (73) Meins,G (2460)-Bischoff,K (2561) Hoeckendorf 2004}) 12... Bd6 13. Ba3 Bc6 14. Qb3 O-O 15. Rfc1 c4 16. Qa2 Bxa3 17. Qxa3 Rb8 18. Ne5 Nxe5 19. dxe5 Nd7 {[#]} 20. Nxc4 $1 {[%mdl 512]} Bb5 $1 {[%cal Rb5c4]} (20... dxc4 21. Bxc6) 21. Nd6 Nxe5 22. e4 Nc4 23. Nxc4 Bxc4 24. exd5 exd5 25. Re1 Qf6 26. Re7 Rb3 27. Qc5 {[%mdl 64] Double Attack} Rxc3 {White must now prevent ...Be2!} 28. Rc7 {[#]} (28. Rxa7 $11 Rc2 29. Re1) 28... Rc2 $1 $17 29. Re1 {[#]} Bd3 (29... g6 $1 $17 {Threatens to win with ...d4.} 30. Qxa7 Ra2) 30. Qxa7 $11 {aiming for Rxc2.} Rxc7 (30... Bc4 {seems wilder.} 31. h4 d4 32. Rf1 h6 33. Rc6 Qf5) 31. Qxc7 {Hoping for a7.} Qxa6 32. Bxd5 $40 {[%mdl 128] Qxf7+! would kill now. White has some attack.} Bg6 33. Re7 Qa1+ 34. Kg2 Qf6 35. h4 h5 36. Bf3 Qd4 37. Rd7 Qf6 38. Re7 Qd4 39. Re5 Rd8 40. Bxh5 Bxh5 41. Rxh5 $16 {[%mdl 4096] Endgame KQR-KQR} Qe4+ 42. Kh2 Re8 43. Rg5 (43. Qc3 $16) 43... Qf3 $11 {The position is equal.} 44. Qc5 g6 {( -> ...Re1)} 45. Re5 Rxe5 46. Qxe5 Qxf2+ {Accuracy: White = 88%, Black = 92%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.4"]
[White "Urkedal, Frode Olav Olsen"]
[Black "Haldorsen, Benjamin"]
[Result "1-0"]
[ECO "D20"]
[WhiteElo "2557"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "153"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,153,29,14,10,16,22,0,0,0,34,0,0,-23,-1,-37,-60,-72,-20,-20,-17,-22,-22,-12,-17,-8,-10,-9,-9,-5,-11,-15,13,0,0,0,0,-12,-12,-11,-16,-12,-16,-16,83,72,76,77,77,76,154,158,147,109,101,119,104,85,119,106,123,131,131,118,199,40,40,40,40,46,40,40,177,177,198,48,48,40,48,48,198,198,198,198,6107,1179,5106,836,765,768,781,739,854,814,859,818,816,0,801,795,799,765,775,714,746,567,560,564,560,217,542,170,528,510,354,298,564,548,1528,1469,1395,1070,1900,1734,1797,2616,29962,29962,6609,29967,6645,5712,4134,2534,29986,29987,29990,29991,29991,29992]} 1. d4 d5 2. c4 dxc4 3. e4 Nf6 4. e5 Nd5 5. Bxc4 Bf5 6. Ne2 e6 7. O-O Nb6 8. Bb3 Nc6 9. Nbc3 Qd7 {D20: Queen's Gambit Accepted: 3 e3 and 3 e4.} 10. Be3 O-O-O 11. Qc1 Kb8 {The position is equal.} 12. Rd1 Nb4 13. a4 {[#]} a5 $146 ({Predecessor:} 13... N6d5 14. Nxd5 Nxd5 15. a5 a6 16. Nc3 Be7 17. Ba4 Qc8 18. Nxd5 exd5 19. Bg5 f6 20. exf6 gxf6 {0-1 (42) Trippold,D (2104)-Badelka,O (2374) Tarvisio 2017}) 14. Nf4 c6 15. d5 N6xd5 16. Nfxd5 cxd5 (16... exd5 $17 17. Bd4 Bg6) 17. Bb6 $11 Rc8 18. Qe3 Qc6 19. Ba7+ Ka8 20. Rac1 $1 Bc5 21. Bxc5 Qxc5 22. Nxd5 $1 Qxe3 23. Nxe3 Bd3 24. Rc3 Rhd8 25. f4 Kb8 26. f5 Rxc3 27. bxc3 Nc6 28. fxe6 fxe6 29. Bxe6 Nxe5 (29... g6 $11 {keeps the balance.}) 30. Nc4 $1 $16 {[%cal Rc4e5]} Nc6 31. Nxa5 $1 Nxa5 {[#]} 32. Bf5 $1 {[%mdl 512]} Bxf5 (32... Rd5 $142) 33. Rxd8+ Bc8 34. Rg8 {[%mdl 1024] White has strong compensation.} g6 35. Rh8 Nb3 36. Kf2 Nc5 37. Ke3 ({Of course not} 37. Rxh7 $6 Nxa4 38. Rg7 Bf5 $11) 37... Nxa4 38. Kd4 ({Reject} 38. Rxh7 $6 Nxc3 39. Kd4 Ne2+ 40. Ke3 Nc3 $11) 38... b6 39. Rxh7 Nc5 (39... Bf5 $16 {was worth a try.}) 40. Rh6 $2 (40. h4 $1 $18) 40... Bf5 $14 41. g4 Bc2 42. h4 {And now h5 would win.} Kc7 $1 43. h5 gxh5 ({Black should play} 43... Kd6 $1 $14) 44. gxh5 $18 Nd7 {[#]} 45. Rh8 (45. Re6 $1 $18) 45... Kd6 $14 46. h6 {h7 is the strong threat.} Nf6 47. Rb8 Kc7 {[#] White stays focused until the end.} (47... Nd7 $14 48. Rg8 Ke6) 48. Rf8 $1 $18 {[%cal Rf8f6]} Nh7 49. Rf2 Bb3 $2 (49... Bb1 50. Rb2 Bg6) 50. Rg2 (50. c4 $142 Kd6 51. Kc3 Bxc4 52. Kxc4) 50... Kc6 51. Rg6+ (51. c4 $142 Bxc4 52. Kxc4) 51... Kb5 52. Rg7 Bc2 53. Rc7 Bg6 54. c4+ Ka6 55. Kc3 Bb1 56. Kd4 $2 (56. Rf7 $18 {Black must now prevent Re7.} Ng5 57. Rg7) 56... Bc2 $2 {[%mdl 8192]} (56... Bg6 $11 57. Rc6 Bf5) 57. Ke5 Bd3 58. Kd5 Bb1 59. Rg7 Bf5 60. Kc6 Be4+ 61. Kc7 Ka5 62. Rg4 $2 (62. Kd6 Ka6 63. Rf7) 62... Bd3 $2 (62... Bc2 63. Kd6 Bd3) 63. Kc6 $2 (63. Rd4 Bg6 64. Rd6) 63... Bf5 $2 (63... Nf6 {is tougher.} 64. Rd4 Bh7) 64. Rf4 Bd3 65. Kd5 Bg6 $2 (65... Ng5 66. Rh4 Nh7) 66. Rf2 Kb4 67. Kd4 Kb3 68. Rg2 Nf8 69. Re2 Kb4 70. Re5 Nd7 71. Rb5+ Ka4 72. Rg5 Nf8 73. Kc3 {White threatens Rg1 and mate.} Ka3 74. Rd5 {Threatening mate with Rd8.} b5 75. cxb5 {[%cal Bc4b5,Bb5b6,Bb6b7][%mdl 32] White mates.} Ka4 76. b6 Ne6 77. b7 {Accuracy: White = 70%, Black = 48%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.5"]
[White "Mihajlov, Sebastian"]
[Black "Ranaldi, Lucas"]
[Result "1/2-1/2"]
[ECO "B13"]
[WhiteElo "2389"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "81"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,81,9,17,-12,34,23,25,34,40,38,34,31,41,29,69,36,39,0,0,0,33,23,59,52,53,40,41,42,38,11,26,20,26,13,10,0,6,0,0,0,0,0,0,0,2,2,2,2,2,2,3,2,2,2,2,2,2,2,8,3,9,8,10,6,9,6,14,0,0,0,0,0,0,0]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6 5. Bb5 Bg4 6. c3 {B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} Rc8 {[#]} 7. Nbd2 $146 {[%cal Bb1d2,Bd2f3,Bf3e5][%mdl 32]} ({Predecessor:} 7. O-O e6 8. h3 Bh5 9. Re1 Bd6 10. Nbd2 Nf6 11. Nb3 O-O 12. Bg5 h6 13. Bh4 Qb6 {½-½ (25) Grouls,C (1634)-Ling,A IECC vs BCCA 1998}) 7... e6 8. Qa4 {White has an edge.} Bxf3 9. Nxf3 ({Much weaker is} 9. gxf3 a6 $15) 9... Qb6 $1 10. O-O Bd6 11. Ne5 a6 12. Bd3 (12. Bxc6+ $5 bxc6 13. Bf4 $16) 12... Nf6 13. Bg5 Bxe5 14. dxe5 Nd7 (14... Ne4 $5 15. Bxe4 dxe4 $14) 15. Be3 $1 {[%cal Re3b6]} Qc7 16. f4 O-O 17. Qd1 f5 18. exf6 Nxf6 19. Kh1 Rce8 20. Qc2 e5 21. fxe5 Nxe5 {The position is equal.} 22. Bf4 Qc6 23. Rad1 Nxd3 24. Qxd3 Ne4 25. Be3 Rxf1+ 26. Rxf1 Qe6 27. Bd4 Rf8 28. Rxf8+ Kxf8 29. Qf3+ Kg8 30. Qf4 {[#] Strongly threatening Qb8+.} Qf7 31. Qb8+ Qf8 32. Qxf8+ Kxf8 $11 {[%mdl 4096] Endgame KB-KN} 33. Kg1 g6 34. Kf1 Ke7 35. Ke2 Ke6 36. a4 b5 37. a5 Nd6 38. b4 h5 39. Ke3 g5 40. Bb6 Nf5+ $1 41. Kf3 {Accuracy: White = 86%, Black = 87%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.6"]
[White "Aarnes, Eirik"]
[Black "Gjestemoen-VonHirsch, Andre"]
[Result "0-1"]
[ECO "B90"]
[WhiteElo "1902"]
[BlackElo "2077"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,40,0,0,0,23,-11,-2,-8,-13,-10,-8,-86,-102,-108,-95,-114,-115,-112,-107,-200,-190,-685,-685]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 h5 9. Qd2 Nbd7 10. O-O-O Rc8 11. Kb1 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} b5 12. Rg1 Be7 13. Nd5 {The position is equal.} Bxd5 14. exd5 Nb6 {[#]} 15. g4 $146 (15. Bxb6 $11 {remains equal.} Qxb6 16. g3) ({Predecessor:} 15. Bxb6 Qxb6 16. Bd3 g6 17. Rge1 Kf8 18. f4 Nd7 19. Rf1 f5 20. fxe5 dxe5 21. Na5 {0-1 (38) Rubil,M (2207)-Nagy,B (2381) Austria 2018}) 15... hxg4 $17 ({But not} 15... Nbxd5 $6 16. g5 $11) 16. Bxb6 Qxb6 17. fxg4 Ne4 $36 {[%mdl 2048] Black is in control.} 18. Qg2 Nf2 19. Rd2 {[#]} (19. Re1 $17) 19... Nh3 $1 $19 20. Nc1 $2 (20. Rh1) 20... Qxg1 {White did not feel at home in the position after the opening. Accuracy: White = 29%, Black = 100%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.7"]
[White "Kaasen, Tor Fredrik"]
[Black "Risting, Eivind Olav"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2401"]
[BlackElo "2300"]
[Annotator "TA"]
[PlyCount "116"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,116,29,47,0,0,-2,0,-31,-8,-12,35,19,37,-15,4,-37,0,0,6,0,8,0,23,0,0,0,8,-25,-24,-20,-20,-23,-28,-38,-22,-34,-20,-61,-50,-73,-68,-57,-58,-68,-70,-63,-56,-60,-31,-110,-93,-106,-102,-113,-104,-100,0,-180,-60,-47,-51,-52,-58,-110,-111,-114,-86,-103,-98,-200,-189,-273,-267,-254,-138,-141,-143,-210,-212,-205,0,-175,0,-173,0,-184,-184,-177,-203,-356,-355,-373,-351,-317,-193,-175,-172,-269,-100,-119,-99,-308,-65,-112,0,-279,0,-56,0]} 1. e4 c6 2. d4 d5 3. e5 c5 4. Nf3 Nc6 5. dxc5 e6 6. c4 {B12: Caro-Kann: Advance Variation.} Bxc5 7. cxd5 exd5 8. Bd3 {The position is equal.} (8. Be2 {feels hotter.} Nge7 9. O-O Bb6 10. Nc3 O-O 11. Re1) 8... Nge7 {[#]} (8... Bg4 {looks sharper.} 9. O-O Nge7 10. Bf4 Ng6 11. Bg3 O-O) 9. h3 $146 ({Predecessor:} 9. O-O Bg4 10. Re1 Qb6 11. Be3 Bxe3 12. Rxe3 O-O-O 13. Nbd2 Ng6 14. Qa4 Bd7 15. Rc1 {1-0 (59) Matsumura,C (1896)-Filimonov,V (1481) Murmansk 2020}) 9... Bb6 10. O-O O-O 11. a3 ({Better is} 11. Nc3 $14) 11... h6 12. b4 Be6 13. Nc3 Nd4 14. Bb2 Nxf3+ 15. Qxf3 Bd4 16. Na4 Bxb2 17. Nxb2 Nc6 (17... Rc8 {keeps more tension.} 18. Na4 b6 19. Ba6 Rc2 20. Nc3 Qc7) 18. Qg3 Qg5 $36 {[%mdl 2048] Black has some pressure.} 19. Qxg5 hxg5 20. Rfe1 a5 21. b5 Nd4 22. Na4 Rac8 23. Red1 Nb3 $1 {[%cal Rb3a1]} 24. Rab1 Nc5 $1 {[%cal Rc5a4]} 25. Nxc5 Rxc5 26. b6 Rfc8 27. Be2 Rc3 28. a4 R8c5 29. Bf3 (29. Kh2 $15) 29... Kf8 $17 30. Kf1 Ke7 31. Ke1 R3c4 32. Be2 Rc3 (32... Rc2 $17 33. Rb5 Bd7 34. Rxc5 Rxc5) 33. Rb2 $2 (33. Bf3 $1 $11 {and White is okay.}) 33... f6 ({Black should try} 33... Bd7 $1 $19 34. Kd2 Bxa4) 34. exf6+ gxf6 35. Ba6 Bc8 36. Re2+ (36. Bb5 $15) 36... Kd6 37. Bb5 Be6 38. f3 Rc2 39. Rb1 (39. Rdd2 $17 {might work better.} Bf5 40. Rxc2 Rxc2 41. Rxc2 Bxc2 42. g3) 39... Rxe2+ $19 40. Kxe2 {[%mdl 4096] Endgame KRB-KRB} (40. Bxe2 $142 Bd7 41. Ba6) 40... Rc2+ 41. Kf1 Bf5 (41... d4 $1 $19 42. Kg1 Bc4 43. Bxc4 Rxc4) 42. Re1 $17 Bg6 43. Rd1 (43. Re2 $17 {keeps fighting.}) 43... Kc5 $19 44. Re1 Kd6 ({Stronger than} 44... Kxb6 45. Re6+ Kc5 46. Rxf6 $11) 45. Rd1 $1 Kc5 46. Re1 $1 Kd6 ({Inferior is} 46... Kxb6 47. Re6+ Kc5 48. Rxf6 $11) 47. Rd1 $1 Rb2 $1 48. g3 Rh2 49. h4 $2 (49. Kg1 Rxh3 50. Kg2) 49... gxh4 50. gxh4 Rxh4 51. Kf2 Rh7 52. Rc1 Rh2+ 53. Ke3 (53. Kg3 $142 Rc2 54. Rh1) 53... Ke5 $2 (53... Bc2 $1 $19 {has better winning chances.} 54. f4 Be4) 54. f4+ $17 {[#]} Kd6 $1 55. Kd4 $2 (55. Rc7 $17 {was necessary.}) 55... Rd2+ $2 (55... Rb2 $19 {aiming for ...Rb4+.} 56. Rc7 Rb4+ 57. Ke3 d4+ 58. Kf2 Be4) 56. Ke3 $15 {[#]} Rh2 $2 (56... Rc2 $1 $17 {[%cal Rc2c1]} 57. Rg1 Be4) 57. Kd4 $1 $19 Rd2+ $2 (57... Rb2 $19 {Strongly threatening ...Rb4+.} 58. Rc8 Rb4+ 59. Ke3 d4+ 60. Kf3 Rb3+ 61. Ke2 Be4) 58. Ke3 $15 Rh2 {Accuracy: White = 62%, Black = 65%.} (58... Rc2 $1 $15 59. Rxc2 Bxc2) 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.8"]
[White "Kvaloy, Aksel Bu"]
[Black "Vestby-Ellingsen, Mads"]
[Result "0-1"]
[ECO "C11"]
[WhiteElo "2164"]
[BlackElo "2351"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,72,-25,-28,-21,-43,-21,-90,-66,-58,-58,-51,-64,-62,-21,-22,-4,-58,-16,-20,-5,-8,-8,0,-4,-39,-30,-32,0,0,0,-45,-61,-51,-50,-62,-62,-67,-32,-136,-136,-219,-239,-237,-214,-349,-342,-1281,-1212,-29970,-29970,-29978,-29978,-29975,-1452,-29950,-12834,-5910,-6086,-29986,-29987]} 1. Nf3 e6 2. e4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. d4 c5 6. dxc5 Nc6 7. Bf4 Nxc5 {is cutting edge theory.} 8. a3 Be7 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} 9. h4 a6 {[#]} 10. Ne2 $146 (10. g3 $11 {remains equal.}) ({Predecessor:} 10. h5 f5 11. Nd4 Nxd4 12. Qxd4 O-O 13. Be2 Ne4 14. Nxe4 fxe4 15. Be3 b5 16. Rd1 Bd7 17. c3 Qc7 18. Bg4 Rac8 19. O-O Bc5 20. Qxc5 Qxc5 21. Bxc5 Rxc5 {½-½ (21) Feygin,M (2512)-Schaefer,M (2404) Germany 2014}) 10... f6 {Black is better.} 11. Ned4 O-O 12. Nxc6 bxc6 13. Bd3 Nxd3+ (13... f5 {feels hotter.} 14. Rb1 Rb8 15. Qc1 Ne4 16. c3 c5) 14. cxd3 d4 15. b4 (15. exf6 $11 gxf6 16. Bh6) 15... Qd5 16. O-O a5 17. Rb1 axb4 18. axb4 Ra3 {Strongly threatening ...Ba6.} 19. Qe2 Ba6 $36 {[%mdl 2048] Black has some pressure.} 20. Rfd1 f5 21. Qb2 Rxd3 22. Rxd3 (22. Qa1 $5 {[%cal Ra1a6]} Rxd1+ 23. Rxd1 $11) 22... Bxd3 23. Rd1 Be4 {...d3 is the strong threat.} 24. Rxd4 Qb5 {And now ...c5 would win.} 25. Rd7 Qxb4 26. Qa2 (26. Qxb4 $15 Bxb4 27. h5) 26... Bd5 $17 27. Qa7 (27. Qd2 $17) 27... Qxf4 $19 28. Rxe7 Qg4 29. Kf1 (29. Ne1 {keeps fighting.}) 29... c5 30. Ke1 $2 (30. Qxc5 Ra8 31. Qc3) 30... Ra8 31. Ng5 Qb4+ 32. Kd1 Bb3+ $1 33. Ke2 Qb5+ (33... Qg4+ $142 34. Nf3 Rxa7 35. Rxa7 Qc4+ 36. Kd2 f4 37. Ne1 Qd4+ 38. Ke2 Qxe5+ 39. Kd2 Qb2+ 40. Kd3 c4+ 41. Ke4 Qxf2 {[%mdl 64] Double Attack} 42. Ra8+ {[#]} Kf7 $1 {[%mdl 512]} 43. Ke5 Qxe1+ 44. Kd6 c3 45. Ra7+ Kf6 46. Rc7 Qe5+ 47. Kc6 c2 48. Kb7 Qxc7+ $1 {[%mdl 576] Promotion} 49. Kxc7 c1=Q+ 50. Kb6 Bd5 51. g4 fxg3 52. Ka6 Qc4+ {[%mdl 64] Double Attack} 53. Ka5 g2 54. Kb6 g1=Q+ 55. Ka5 Qgc5#) 34. Ke1 Rxa7 35. Rxa7 Bd5 36. Rc7 Qa5+ {Accuracy: White = 45%, Black = 78%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.9"]
[White "Fossan, Aleksander"]
[Black "Skaslien, Ingrid"]
[Result "1-0"]
[ECO "C11"]
[WhiteElo "2240"]
[BlackElo "2024"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,59,10,20,0,14,13,13,5,11,14,10,0,33,0,0,0,91,-18,-19,-70,50,21,18,-19,38,38,138,142,157,153,133,98,94,87,436,173,155,0,428,435,460,460,624,615,846,840]} 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 Be7 8. Qd2 O-O 9. Be2 {C11: French: Classical System: 4 e5 and 4 Bg5 dxe4.} b6 10. O-O f5 11. dxc5 {The position is equal.} Nxc5 12. Rad1 Bb7 13. a3 Rc8 {[#]} 14. Bb5 $146 ({Predecessor:} 14. Qe1 Qd7 15. b4 Ne4 16. Nxe4 fxe4 17. Nd2 Qc7 18. Nb3 Kh8 19. Qg3 Nd8 20. Nd4 {1-0 (43) Belmar Juaranz,C (2260)-Deneuville,C (2157) ICCF email 2015}) 14... Ne4 15. Nxe4 dxe4 (15... fxe4 $11 {keeps the balance.} 16. Nd4 Nxd4 17. Bxd4 Bc5) 16. Qf2 (16. Qd7 $16 Qxd7 17. Rxd7) 16... Qc7 $11 17. Nd2 {[#]} (17. Bxc6 $11 Bxc6 18. Nd4) 17... Nd8 (17... Nxe5 $1 $15 {[%mdl 512]} 18. fxe5 f4) 18. c3 {White wants to play Nxe4!} Bc6 19. a4 Nf7 (19... Bxb5 $11 20. axb5 g5) 20. Nb3 $14 Rcd8 (20... Bxb5 $14 21. axb5 Nh6) 21. Nd4 $36 {[%mdl 2048] White is really pushing.} Bd7 {[#]} 22. Qe2 $1 Qc8 23. g4 {Strongly threatening gxf5.} Nh6 24. h3 Be8 $2 {[%mdl 8192]} (24... Bc5 $16 {is more resistant.}) 25. Bc4 $2 (25. Ba6 Qa8 26. Nxe6 Rxd1 27. Rxd1) 25... Bd7 $18 26. Bb5 $2 (26. Ba6 $16 Qb8 27. a5) 26... Be8 $1 27. Ba6 {White is clearly winning.} Qb8 28. Nxe6 {[%mdl 64] Discovered Attack} Bxa4 29. Rxd8 Rxd8 30. Nxd8 {Accuracy: White = 54%, Black = 52%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.17"]
[Round "8.10"]
[White "Tunsjo, Axel"]
[Black "Pena Riasco, Alexander"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2149"]
[BlackElo "2115"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,92,4,5,5,10,0,1,0,0,0,0,-6,-12,0,-2,1,8,0,-9,-45,12,15,4,-120,-101,-176,-73,-84,-52,-56,-52,-70,-58,-88,-58,-104,-98,-162,-47,-187,-185,-183,-181,-199,-132,-136,-28,-43,-37,-65,0,-103,-89,-124,-118,-174,-163,-198,-148,-164,-86,-81,-93,-279,-215,-541,-547,-641,-606,-841,-849,-859,-831,-2856,-2673,-29990,-2333,-2213,-1412,-29990,-29991,-29991,-29992,-29993,-29992]} 1. e4 d5 2. Nc3 dxe4 3. Nxe4 Bf5 4. Ng3 Bg6 5. h4 h6 6. Nf3 {A00: Irregular Openings.} Nd7 7. d4 e6 8. Bf4 {The position is equal.} Bd6 {[#]} 9. Bxd6 $146 ({Predecessor:} 9. Ne5 Nxe5 10. dxe5 Bc5 11. c3 Ne7 12. Qf3 Nd5 13. Rd1 Qe7 14. b4 Bb6 15. a4 {0-1 (24) Hofmann,D (1700)-Widner,S Wattens 1996}) 9... cxd6 10. d5 e5 11. h5 Bh7 12. Bd3 Bxd3 13. Qxd3 Ne7 14. Ne4 Qa5+ (14... O-O $1 $15 15. Qa3 Rc8) 15. c3 $11 Qb6 16. Nfd2 (16. g4 $11 {keeps the balance.}) 16... f5 $17 17. Ng3 (17. Nc4 $17 fxe4 18. Nxb6 exd3 19. Nxa8 Nxd5 20. c4) 17... O-O (17... Qxb2 $19 {is more deadly.} 18. O-O Nc5) 18. O-O Rac8 19. c4 a5 20. Qb3 Qa6 21. Qa3 Nc5 22. b3 Qb6 23. Qb2 (23. Qc1 $17) 23... Rf7 (23... f4 $19 24. Ne2 Rf5) 24. a3 (24. Qc3 $15) 24... Nd3 $19 25. Qb1 e4 26. b4 axb4 ({Black should play} 26... Qd4 $19 27. Ne2 Qf6) 27. axb4 $17 Rb8 ({Weaker is} 27... Qxb4 28. Qxb4 Nxb4 29. Rfb1 $16) ({Better is} 27... Qd4 $1 $17 28. Ne2 Qf6) 28. Ra5 Ne5 {Threatens to win with ...e3.} 29. Qb3 Nd3 (29... Rc8 $15) 30. Rb5 (30. Qb1 $11) 30... Qd4 {...Nxf2 is the strong threat.} 31. Qc2 Rff8 32. Nb3 (32. Ne2 $17 Qe5 33. Qb3) 32... Qe5 $19 33. Nc1 Nxc1 34. Rxc1 {[#]} e3 (34... f4 $1 $19 {[%cal Rf4g3]} 35. Nxe4 Nf5) 35. Qc3 $17 exf2+ 36. Kxf2 $2 (36. Kf1 $17 {is the only way for White.}) 36... f4 $19 37. Ne2 $2 (37. Ne4 Qxe4 38. Re1) 37... Qxh5 38. Qf3 Qe5 39. Kg1 Nf5 40. Qf2 Rbe8 41. Nc3 {[#]} f3 $1 {[%mdl 512]} 42. g4 (42. Qxf3 Ng3) 42... Nd4 (42... Qf4 $142 43. Ra1 Qxg4+ 44. Kh2 Re3 45. Rb6 Rxc3 46. Rxb7 Rxc4 47. Rxg7+ Nxg7 48. Ra2 Qh5+ {[%mdl 64] Double Attack} 49. Kg1 Rg4+ 50. Qg3 {[#]} f2+ $1 {[%mdl 512]} 51. Rxf2 Rxg3+ 52. Rg2 Qh3 53. Rxg3 Rf1#) 43. Kh1 Nxb5 44. Nxb5 {[#]} Qf4 $1 {Black mates.} 45. Rc2 Qxg4 46. Nd4 Re4 {Accuracy: White = 48%, Black = 63%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.1"]
[White "Haug, Johannes"]
[Black "Urkedal, Frode Olav Olsen"]
[Result "1/2-1/2"]
[ECO "D43"]
[WhiteElo "2431"]
[BlackElo "2557"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,88,24,15,18,31,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,18,0,0,0,0,0,0,0,0,0,0,-12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,124,116,115,-124,-145,-214,-197,-1137,-77,-77,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 Qxf6 7. Qc2 Nd7 8. e4 dxe4 9. Qxe4 g6 10. h4 {[#] D43: Semi-Slav: 5 Bg5 h6.} (10. Qe3 {feels hotter.} Qe7 11. Bd3 Bg7 12. O-O b6 13. Rfe1) 10... Qf5 $146 ({Predecessor:} 10... Bg7 11. h5 g5 12. Bd3 Qe7 13. O-O-O Nf6 14. Qe2 b6 15. Ne5 Bb7 16. Rhe1 O-O-O 17. Bc2 Nd7 18. g3 Nxe5 19. dxe5 Rxd1+ 20. Rxd1 g4 21. Kb1 {½-½ (21) Gasanov,E (2494)-Basso,P (2516) Amantea 2018}) 11. Bd3 (11. Qe3 {keeps more tension.} Bg7 12. Bd3 Qa5 13. O-O O-O 14. Rfe1) 11... Qxe4+ 12. Bxe4 Bg7 13. O-O-O O-O 14. Rhe1 Rb8 15. Bc2 b6 16. Ne5 Nxe5 17. dxe5 Ba6 18. b3 Rfd8 19. f4 Bf8 20. Rxd8 Rxd8 21. Rd1 Ba3+ 22. Kb1 Rxd1+ 23. Bxd1 $11 {[%mdl 4096] Endgame KBB-KBN} b5 24. Be2 bxc4 25. bxc4 Bc5 26. Ne4 Bg1 27. Kc2 c5 28. Kd3 Bb7 29. Bf3 {Hoping for Nf6+.} Kg7 30. Nd2 Bxf3 31. Nxf3 {KB-KN} Bf2 32. g4 h5 33. gxh5 gxh5 34. Ke4 Kg6 (34... f5+ $11 {remains equal.} 35. exf6+ Kxf6) 35. f5+ $1 $16 exf5+ 36. Kd5 $2 (36. Kf4 $16 {is necessary to keep the advantage.} a6 37. a3) 36... f4 $1 $17 37. e6 (37. Ke4 $17 {keeps fighting.}) 37... fxe6+ $19 38. Kxe6 $2 {[#]} (38. Ke4) 38... Bd4 $2 (38... Bxh4 $1 $19 {[%mdl 512]} 39. Kd6 (39. Nxh4+ Kg5) 39... Bg3 40. Kxc5 h4) 39. Kd5 $17 {[#]} Bf6 ({Black should play} 39... Kf5 $1 $17 {aiming for ...Bf6.} 40. Nxd4+ cxd4 41. Kxd4 Kg4) 40. Ke4 $11 {The position is equal.} Kf7 41. Kxf4 Ke6 42. Ng5+ Kd6 $1 43. Ne4+ Ke7 44. Nxf6 Kxf6 {Accuracy: White = 74%, Black = 84%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.2"]
[White "Nilsen, Joachim Birger"]
[Black "Johansson, Linus"]
[Result "1/2-1/2"]
[ECO "E42"]
[WhiteElo "2411"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,53,29,10,24,29,52,44,51,22,0,0,41,24,22,-6,16,10,20,15,15,0,0,0,0,0,0,0,29,0,42,0,2,4,43,19,20,29,25,8,15,7]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Nge2 b6 6. a3 Ba5 7. Rb1 Na6 8. g3 Bb7 {[#] E42: Nimzo-Indian: Rubinstein: 4...c5 5 Ne2.} 9. d5 $1 {[%mdl 512]} O-O (9... exd5 10. Bg2) 10. Bg2 b5 {White is slightly better.} 11. O-O {And now b4 would win.} bxc4 12. e4 d6 13. Qa4 exd5 14. exd5 {[#]} Nb8 $146 {[%cal Ba6b8,Bb8d7,Bd7f6][%mdl 32]} ({Predecessor:} 14... Bb6 15. Qxc4 Nc7 16. Re1 Re8 17. Be3 Qd7 18. h3 Re5 19. Red1 Ba6 20. Qa2 Qe7 {1-0 (38) Brown,M (2499)-Bok,B (2620) Douglas 2017}) 15. Bg5 Nbd7 16. Ne4 Bc7 $1 17. N2c3 h6 $1 {[%cal Rh6g5]} 18. Nxf6+ Nxf6 19. Bf4 Rb8 20. Qxc4 Qc8 21. Rfd1 g5 {[#] aiming for ...Ba6.} 22. Bc1 Ba6 23. Qa4 c4 24. Be3 Bb6 25. Re1 Re8 26. Bxb6 Rxb6 27. Qc2 {Accuracy: White = 80%, Black = 76%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.3"]
[White "Pantzar, Milton"]
[Black "Notkevich, Benjamin Arvola"]
[Result "1-0"]
[ECO "E04"]
[WhiteElo "2417"]
[BlackElo "2476"]
[Annotator "TA"]
[PlyCount "55"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,55,47,30,58,53,54,60,60,60,60,60,62,62,39,44,57,25,31,33,137,145,206,196,191,182,193,114,237,0,482,208,220,224,201,233,399,346,616,622,1171,1136,917,900]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. O-O Nc6 7. e3 Rb8 8. Nfd2 e5 {E04: Open Catalan: 5 Nf3.} 9. Bxc6+ $1 bxc6 10. dxe5 Ng4 {White is slightly better.} 11. Nxc4 Be6 {Threatens to win with ...Qxd1.} 12. Nbd2 Bb4 13. b3 h5 14. h3 Bc3 15. Ba3 {[#]} ({Of course not} 15. hxg4 Bxa1 16. Ba3 Bc3 $15) 15... Nxe5 $146 ({Predecessor:} 15... Bxa1 16. Qxa1 h4 17. hxg4 hxg3 18. Kg2 Rh2+ 19. Kf3 Qh4 20. Qd4 Rd8 21. Qf4 g2 22. Rg1 g5 23. Qg3 Rh3 24. Rxg2 Qxg4# {0-1 (24) Pantzar,M (2417)-Narayanan,S (2540) chess.com INT 2020}) 16. Rc1 Bxd2 (16... Bxc4 $14 17. Nxc4 Nxc4) 17. Nxe5 $16 Bxc1 (17... Bxh3 $16 {was called for.} 18. Qf3 Qf6 19. Qxc6+ Qxc6 20. Rxc6 Ba5) 18. Qxc1 $18 Rb6 {White should prevent ...Qd5.} 19. Rd1 Qf6 20. Nxc6 ({Better is} 20. f4 $18) 20... Bd7 (20... Bxh3 $16 21. Rd8+ Qxd8 22. Nxd8 Kxd8) 21. Na5 $2 (21. Ne7 $18 Qf3 22. Qd2) 21... Kd8 $2 {[%mdl 8192]} (21... Qf3 $1 $11 22. Qd2 Rd6 23. Bxd6 Bg4 {[%mdl 64] Back Rank}) 22. Bc5 (22. Qc5 $142) 22... Rb5 {[#]} 23. Qd2 $1 {[%csl Gd1][%cal Rd2d7][%mdl 512]} Qe6 24. a4 $40 {[%mdl 128] White attacks with force.} Rxa5 $2 (24... Rb8 25. Qc3 h4) 25. Qxa5 {Hoping for Qb4.} Qxb3 $2 {[#]} (25... Qc6 26. Rd6 Qb7 27. Rxa6 Bxh3) 26. Qd2 $1 {[%csl Gd1][%cal Rd2d7][%mdl 512] White is clearly winning.} Qe6 {[#] intending ...Kc8.} 27. Qb2 $1 {[%cal Rb2b8][%mdl 512]} Kc8 28. Ba7 {Accuracy: White = 58%, Black = 43%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.4"]
[White "Gjestemoen-VonHirsch, Andre"]
[Black "Djurhuus, Rune"]
[Result "1/2-1/2"]
[ECO "A16"]
[WhiteElo "2077"]
[BlackElo "2437"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,94,10,16,21,18,25,42,31,49,27,44,0,0,-29,-24,-21,-18,-19,0,-39,-38,-20,6,13,21,-40,-36,-40,-43,-32,-32,-57,6,-14,0,0,0,-2,0,0,0,0,0,0,0,-94,-19,-20,-11,-165,-151,-1147,75,75,77,75,75,75,77,36,56,56,185,185,181,75,75,49,75,75,188,49,49,49,49,49,60,60,60,60,60,60,60,56,56]} 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 4. Nc3 O-O 5. d3 d6 6. Rb1 c6 7. e4 {A16: English Opening: 1...Nf6 with ...d5.} e5 8. Nge2 Be6 9. O-O Nh5 {[#]} 10. Be3 $146 ({Predecessor:} 10. b4 Nd7 11. b5 Qc7 12. bxc6 bxc6 13. Be3 Rab8 14. Qa4 Nb6 15. Qa3 Rfd8 16. Rb3 {0-1 (41) Soergel,F (2005)-Kern,L (1950) Bayern 2001}) 10... f5 11. f4 Nd7 12. h3 Qe7 (12... exf4 {is interesting.} 13. Nxf4 Nxf4 14. Bxf4 Nc5 15. b4 Nxe4 16. dxe4 Bxc3 17. Bxd6 Bxc4 18. Bxf8 Qd4+) 13. Qd2 exf4 14. Bxf4 fxe4 15. Nxe4 (15. Bg5 $5 {[%cal Rg5e7]} Nhf6 16. Nxe4 $11) 15... Nxf4 16. Nxf4 Bf7 17. Rbe1 Ne5 18. b3 (18. h4 $11) 18... g5 $15 19. Ne2 Bg6 $1 20. N2c3 Rxf1+ 21. Rxf1 Rf8 (21... g4 $15) 22. d4 Rxf1+ 23. Kxf1 Nf7 24. g4 h6 25. Qf2 Nd8 26. Ng3 Ne6 27. Nce2 Bd3 {Hoping for ...Bxd4.} 28. d5 (28. Qe3 $11 Qf6+ 29. Ke1 Bxe2 30. Nxe2) 28... Nd4 ({Black should try} 28... Nf4 $1 $17 {Strongly threatening ...c5.} 29. dxc6 bxc6 30. Bxc6 Kh8) 29. dxc6 $11 bxc6 30. Ke1 $2 (30. Bf3 $11) 30... Qe5 $19 31. Qxd4 $2 (31. Kd2 $17 Bxe2 32. Nxe2 Qa5+ 33. Nc3) 31... Qxg3+ $2 (31... Qa5+ $19 32. Kf2 Bxd4+ 33. Nxd4 Qc5) 32. Nxg3 $16 Bxd4 33. Bxc6 $17 {[%mdl 4096] Endgame KBB-KBN} Be5 34. Bd5+ Kf8 35. Nf5 h5 36. Ne3 h4 ({Better is} 36... Bc3+ $14 37. Kd1 hxg4 38. hxg4 (38. Nxg4 Bd4 $14) 38... Kg7) 37. Kd2 $18 Bb1 {[#]} 38. a4 (38. b4 $1 $18 {is the precise move to win.}) 38... a5 $16 39. Nc2 Bf4+ {[#]} 40. Kd1 $1 Ke7 (40... Be5 $16 {keeps fighting.}) 41. b4 (41. Nd4 $18) 41... Bxc2+ $1 $14 {White is slightly better.} 42. Kxc2 axb4 {KB-KB} 43. Kb3 Be3 {And now ...Bc5 would win.} 44. Kxb4 Kd8 45. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Kc7 46. Kb5 Bf2 47. a6 Be3 {Accuracy: White = 60%, Black = 71%.} 1/2-1/2

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.5"]
[White "Haldorsen, Benjamin"]
[Black "Ranaldi, Lucas"]
[Result "1-0"]
[ECO "C88"]
[WhiteElo "2458"]
[BlackElo "2353"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,119,22,23,13,8,10,37,29,29,20,24,33,41,41,29,34,9,26,64,63,56,38,41,43,60,52,65,61,106,107,98,105,121,116,135,133,149,150,148,148,137,126,131,129,147,100,92,67,69,75,143,151,220,194,204,188,222,183,251,260,250,225,256,256,271,271,360,271,515,505,513,502,466,454,469,414,620,602,604,553,603,556,1506,1425,1485,1914,29952,29955,29959,29962,29957,29962,29957,8738,6472,5628,29966,12359,29976,29977,29974,29970]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. a4 b4 9. d4 O-O 10. dxe5 Nxe5 {is more profitable than 10...dxe5 at the moment. Played by Pentala Harikrishna in March 2020.} 11. Nxe5 {C88: Closed Ruy Lopez: Anti-Marshall Systems.} dxe5 12. Qe2 (12. Nd2 {is more complex.} Bc5 13. Qf3 Ng4 14. Rf1 Qh4 15. h3) 12... Bb7 13. Nd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32] [#] White is slightly better.} Bd6 $146 ({Predecessor:} 13... Nd7 14. Nc4 Nc5 15. Nxe5 Nxb3 16. cxb3 Re8 17. Qc4 Bf6 18. Nxf7 Qd5 19. Qxb4 a5 20. exd5 axb4 {0-1 (55) Sutovsky,E (2643)-Sadhwani,R (2507) Moscow 2019}) 14. a5 Nd7 15. Bc4 Nc5 16. f3 Kh8 17. Nf1 f5 18. exf5 Rxf5 19. Ng3 Rf8 20. Be3 e4 {[%cal Re4f3]} 21. f4 $1 Qe7 22. Rf1 Nd7 23. Rad1 Rf6 24. Bd5 $36 {[%mdl 2048] White has strong initiative.} Bxd5 25. Rxd5 Rff8 26. Rd4 Nf6 27. Nf5 Qe6 28. Nxd6 cxd6 29. Rxb4 Nd5 30. Rd4 {Threatens to win with Qc4.} Nxe3 31. Qxe3 d5 {[#]} 32. c4 $1 {[%mdl 512]} dxc4 33. Qxe4 Qxe4 34. Rxe4 $16 {[%mdl 4096] Endgame KRR-KRR. White stays focused until the end.} Rf5 (34... Rab8 $142) 35. Re5 Rxe5 (35... Raf8 $16 36. Rxf5 Rxf5) 36. fxe5 {KR-KR} Kg8 37. Rf4 Rc8 {[#]} 38. e6 $1 Re8 (38... c3 $142 39. bxc3 Re8) 39. Rxc4 $18 Rxe6 40. Rc8+ Kf7 41. Rc7+ Kf8 42. Rb7 h6 43. b4 Re1+ $2 (43... h5 {was necessary.} 44. Kf2 Rd6) 44. Kf2 Ra1 45. Rb6 Rb1 46. Kf3 Rb2 47. h4 h5 (47... Ke7 $142 48. g3 (48. Rxa6 Rb3+ 49. Ke4 Rxb4+ 50. Kd5 Rg4 $16) 48... Rb3+ 49. Ke4 Kd7) 48. g3 Rb3+ 49. Kf4 Kf7 50. Ke5 g5 51. hxg5 Rxg3 52. Rxa6 Rxg5+ 53. Kd4 h4 54. Rh6 Rg4+ 55. Kc5 Kg7 56. Rd6 h3 57. Rd1 h2 {[#]} 58. Rh1 $1 Rg2 59. a6 Ra2 60. Kb6 {Accuracy: White = 93%, Black = 49%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.6"]
[White "Vestby-Ellingsen, Mads"]
[Black "Mihajlov, Sebastian"]
[Result "1-0"]
[ECO "D10"]
[WhiteElo "2351"]
[BlackElo "2389"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,41,22,48,-51,-47,-72,-73,-69,-65,-82,0,0,0,0,28,0,0,-15,0,0,0,0,10,-58,46,59,46,20,525,511,739,729,1452,1377]} 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Bf4 Nf6 5. Nc3 Qb6 6. Na4 {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} ({White should try} 6. e3 $14) 6... Qb4+ $15 7. Bd2 Qxd4 8. Nf3 {[#] Black is better.} Qg4 $146 ({Predecessor:} 8... Qe4 9. Nc3 Qf5 10. e3 e5 11. Qb3 Nc6 12. Nxd5 Nxd5 13. Qxd5 a6 14. Bd3 Qh5 {½-½ (23) Winkel,P (1908)-Spiekermann,S (2015) Goch 2015}) 9. e3 Bd7 (9... Nc6 $17) 10. Nc5 $11 e6 11. h3 $36 {[%mdl 2048] White fights for an advantage.} Qh5 12. Nxd7 Nbxd7 13. Qa4 Bd6 14. Bb4 Bxb4+ 15. Qxb4 Qg6 16. Rc1 ({Better is} 16. Bb5 $1 $11) 16... Qe4 (16... a6 $1 $15) 17. Qa3 $14 {Hoping for Bd3.} a5 18. Nd4 $1 e5 $2 {[%mdl 8192] [#]} (18... Kd8 $1 $11 {and Black has nothing to worry.}) 19. Bd3 $1 $18 {[%cal Rd3e4] White is clearly winning.} Qxg2 {[#]} 20. Nf5 $1 {[%csl Gf5][%cal Ra3e7][%mdl 512]} Qxh1+ {[#]} 21. Ke2 $1 {[%mdl 512] Accuracy: White = 75%, Black = 41%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.7"]
[White "Fossan, Aleksander"]
[Black "Kaasen, Tor Fredrik"]
[Result "0-1"]
[ECO "C48"]
[WhiteElo "2240"]
[BlackElo "2401"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,78,1,10,9,29,0,8,10,17,-8,0,0,0,0,0,0,0,0,0,-18,-23,-34,-10,-21,-9,-12,-13,-12,0,0,16,-20,37,39,134,-10,-9,0,-8,-34,-30,-51,-41,-29,-37,-5,-14,-114,-117,-313,-85,-173,-168,-162,-147,-219,-211,-289,-267,-267,-262,-423,-399,-402,-392,-1589,-1568,-1558,-1519,-1512,-1488]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bd6 5. O-O O-O 6. d3 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4.} h6 7. Ne2 Re8 8. Ng3 {The position is equal.} a6 9. Ba4 b5 10. Bb3 Na5 11. Re1 Bb7 12. Bd2 Nxb3 13. axb3 Bf8 {[#]} 14. b4 $146 ({Predecessor:} 14. c4 g6 15. Qc1 Kh7 16. Qc2 d6 17. Rec1 c6 18. h3 Bg7 19. Ra5 Rc8 20. Qb1 {0-1 (48) Leon,J (2260)-Tristan,L (2457) Benavidez 2013}) 14... d5 15. Bc3 d4 16. Bd2 Nd7 17. c3 c5 18. bxc5 Nxc5 19. cxd4 exd4 ({And not} 19... Nxd3 20. Ba5 $18) 20. Nf5 Qd7 (20... a5 $11 21. Bf4 Ne6) 21. Bf4 $14 Ne6 (21... Rad8 $14) 22. Be5 (22. Ne5 $16 Qc7 23. Rc1) 22... f6 $11 23. Bg3 g6 $36 {[%mdl 2048] Black is more active.} 24. Qb3 (24. N5h4 $5 {[%cal Rh4g6]}) 24... Kh8 25. N5h4 Kh7 26. Rec1 a5 27. Qd1 a4 28. Nd2 (28. Ne1 $11) 28... Nc5 $1 $17 29. f4 $2 (29. Ndf3 $17 {was necessary.}) 29... Rac8 $2 (29... Nxd3 $19 {is more deadly.} 30. Rc2 Rac8 31. Rxc8 Rxc8) 30. Qe2 {[#]} (30. Ndf3 $17) 30... f5 $1 $19 {[%cal Rf5e4]} 31. e5 Qd5 32. Ndf3 (32. Nhf3 $17) 32... Ne6 33. Nxg6 Kxg6 34. Nh4+ {[#]} Kh7 $1 35. Qh5 $2 (35. Nxf5 Ng7 36. Nxg7 Bxg7 37. Rf1) 35... Ng7 36. Qg6+ Kg8 37. Qxh6 $2 (37. Be1 Qe6 38. Rab1) 37... Rxc1+ {Black is clearly winning.} 38. Rxc1 Re6 39. Qg5 Be7 {Accuracy: White = 46%, Black = 83%.} 0-1

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.8"]
[White "Risting, Eivind Olav"]
[Black "Aarnes, Eirik"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2300"]
[BlackElo "1902"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,53,-4,0,-7,22,12,54,54,66,66,131,126,172,140,494,499,541,547,487,441,601,531,648,416,420,420,397,381,492,499,564,562,588,602,734,734,729,719,698,684]} 1. c4 c6 2. d4 d5 3. Nc3 Nf6 4. e3 e6 5. Nf3 Nbd7 6. Qc2 Bd6 7. Bd3 dxc4 8. Bxc4 b5 9. Be2 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran.} Bb7 10. O-O b4 11. Na4 {White is slightly better.} c5 12. Nxc5 Qc7 {[#]} (12... Bxc5 $14 13. dxc5 Rc8) 13. Bd2 $146 ({Predecessor:} 13. Qa4 Bxc5 14. dxc5 Ng4 15. Rd1 O-O-O 16. Qxb4 h5 17. Bd2 Nde5 18. Nxe5 Nxe5 19. Bc3 {1-0 (26) Musialkiewicz,P (2191)-Krainski,S (2014) Poronin 2013}) 13... Bxc5 14. dxc5 Ng4 $2 {[%mdl 8192] [#]} (14... Be4 $16 {is tougher.} 15. Qc1 O-O) 15. c6 $1 $18 {[%mdl 512]} Bxc6 16. Rfc1 Rc8 {[#]} 17. Bb5 $1 {[%mdl 512]} Nb8 (17... Bxb5 18. Qxc7) 18. Bxc6+ Qxc6 19. Qd3 Rd8 20. Rxc6 Rxd3 21. Rc4 Nf6 22. Bxb4 {White is clearly winning.} Na6 23. Ne5 Rd8 24. Ba5 Rd5 25. Rc8+ Ke7 26. Rxh8 Rxe5 27. Bd8+ {Black got outplayed after the opening. Accuracy: White = 87%, Black = 18%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.9"]
[White "Pena Riasco, Alexander"]
[Black "Vea, Odin Blikra"]
[Result "1-0"]
[ECO "A44"]
[WhiteElo "2115"]
[BlackElo "2204"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,71,84,82,61,87,71,79,70,70,66,76,77,91,83,79,47,57,57,68,35,40,43,43,29,35,38,50,27,45,38,35,5,66,75,90,86,125,122,236,239,225,232,216,135,136,136,143,87,86,98,70,67,94,52,211,201,235,154,149,173,790,780,997,976]} 1. d4 c5 2. d5 e5 3. e4 d6 4. Bb5+ Nd7 5. a4 a6 6. Be2 {A44: Semi-Benoni.} Be7 7. Nc3 Ngf6 8. Nf3 {White is better.} O-O 9. O-O b6 10. Nd2 {[#]} Rb8 $146 ({Predecessor:} 10... Ne8 11. Nc4 Bg5 12. Bxg5 Qxg5 13. Rb1 Rb8 14. Na3 Ndf6 15. Kh1 Qh4 16. Qd3 Nc7 {1-0 (59) Maiorov,N (2533)-Gubajdullin,A (2375) Voronezh 2018}) 11. Nc4 Ne8 12. f4 exf4 13. Bxf4 f6 14. Kh1 Ne5 15. Bg3 Nc7 16. Qd2 Nxc4 17. Bxc4 b5 18. axb5 axb5 19. Be2 $36 {[%mdl 2048] Black is under pressure.} b4 20. Nd1 Re8 (20... f5 $11) 21. Ne3 $14 Bf8 22. Bd3 g6 23. Qf2 Bg7 (23... Be7 $16 24. Nc4 Bb7) 24. Nc4 Nb5 25. Ra5 Bd7 26. Rfa1 f5 27. exf5 ({But not} 27. Nxd6 $6 Nxd6 28. Bxd6 fxe4 $14) 27... Rf8 28. Nxd6 (28. Qe1 $142) 28... Bxb2 $16 29. Qxc5 Bxa1 30. Rxa1 Nxd6 31. Qxd6 Rb6 $2 {[#] This costs Black the game.} (31... Bxf5 $14 32. Bxf5 (32. Qxb8 Qxb8 33. Bxb8 Rxb8 $16) 32... Qxd6 33. Bxd6 gxf5) 32. Qc5 $1 $18 Qf6 33. Rf1 {d6 is the strong threat.} ({Not} 33. Ra7 b3 $14) 33... Rc8 34. Bc7 Rb7 $2 (34... Ra6) 35. d6 gxf5 36. Qd5+ {[%mdl 64] Double Attack. Accuracy: White = 67%, Black = 61%.} 1-0

[Event "Offerspill Invitational 2020"]
[Site "Oslo"]
[Date "2020.06.18"]
[Round "9.10"]
[White "Sjoberg, Isak"]
[Black "Kvaloy, Aksel Bu"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2189"]
[BlackElo "2164"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2020.06.10"]
[EventType "swiss"]
[EventCountry "NOR"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,63,14,25,6,21,7,23,23,28,27,22,22,24,11,23,11,22,16,55,49,58,71,64,65,129,83,138,147,149,146,204,169,399,399,387,389,428,425,556,546,720,711,710,710,710,710,2112,1767,1767,1341,29992,29993]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. h3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Be7 9. f4 exf4 10. Bxf4 {White has an edge.} Nc6 11. Qe2 Nd7 12. O-O-O Nce5 13. Qe3 O-O 14. Kb1 {[#]} b5 $146 ({Predecessor:} 14... Rc8 15. Be2 Qc7 16. Rhf1 Nb6 17. Qg3 Na4 18. Bd2 b5 19. Nd4 Qc5 20. Nxa4 bxa4 {½-½ (29) So,W (2760)-Nepomniachtchi,I (2773) Kolkata 2019}) 15. g4 Re8 16. Nd4 b4 17. Nd5 Bxd5 18. exd5 Nb6 (18... Ng6 $14) 19. Qb3 Bf6 (19... Bf8 $142) 20. Nc6 $16 Nxc6 21. dxc6 Re4 (21... Be5 $16) 22. Qf3 d5 $2 {[#]} (22... Re6 23. Bg2 Be5) 23. Qxe4 $3 $18 {[%mdl 512]} dxe4 24. Rxd8+ Rxd8 25. Bxa6 Rd5 26. c7 g5 27. Be3 Bd4 28. Rd1 Bxe3 29. Rxd5 {[%mdl 64] [#] Overworked Piece} Nxd5 30. c8=Q+ Kg7 31. Qb7 Nf6 32. Bc4 {Accuracy: White = 88%, Black = 38%.} 1-0

