[Event "Birmingham 1976"]  [White "Eugene Meyer"]  [Black "Michael Stean"]  [Result "0-1"]  [ECO "D91"]  [Annotator "ATH"]  [PlyCount "50"]  [EventDate "1976.??.??"]  [SourceTitle "StarBase 2.88"]  [Source "Pickard & Son"]  [SourceDate "2003.01.15"]  [SourceVersion "1"]  [SourceVersionDate "2003.01.15"]  [SourceQuality "2"]   1. Nf3 g6 2. d4 Bg7 3. c4 Nf6 4. Nc3 d5 5. Bg5 dxc4 (5... Ne4 {is the main line  }) 6. e3 (6. e4 $5) 6... Be6 7. Ne5 $6 (7. e4) 7... Nd5 8. Nxc4 c5 9. Ne4 $6 (  9. Nb5 f6 10. e4 fxg5 11. exd5 Bd7 $17 {Piesik-Gazik, Skopje 2019}) 9... cxd4  10. Qa4+ $6 (10. exd4 O-O 11. Nc5 Qc8 $17) 10... Nd7 (10... Bd7 $1 11. Ncd6+  Kf8 12. Qa3 Bc6 13. Bc4 (13. Nc4 h6 14. Bh4 a5 15. Rc1 Nb4 $19) 13... f5 $19)  11. Ned6+ $2 (11. exd4 O-O $17) 11... Kf8 12. Nxb7 (12. e4 $5) 12... Qc7 13.  Nba5 dxe3 (13... h6 $1 {is even stronger}) 14. fxe3 (14. Bxe3 {puts up stiffer  resistance, e.g.} Nxe3 15. fxe3 Nb6 $19) 14... h6 15. Bh4 Bxb2 16. Rb1 $2 (16.  Nxb2 $4 Qc3+ $19) (16. Rd1 Nc5 17. Qc2 Bc3+ 18. Kf2 Bxa5 $19) 16... Nc5 17. Qc6  $6 ({White is deader than Doug Jones's senatorial career. Still, I have to  note that} 17. Qd1 {is better}) 17... Bc3+ 18. Kf2 Bxa5 19. Nxa5 Qxa5 20. Qxa8+  (20. Qb5 {is irrelevantly better}) 20... Kg7 21. Qc6 Qxa2+ (21... a6 {is  irrelevantly stronger}) 22. Be2 $2 (22. Kg1 Qxb1 23. Qxc5 Rc8 24. Qb5 Qxb5 25.  Bxb5 {allows White to survive into a hopeless ending}) 22... Ne4+ 23. Kf3 Nd2+  (23... Bg4+ $1 {and mate in 15 according to Stockfish}) 24. Kg3 Nxb1 25. Bc4  Qd2 0-1  

  [Event "New York 1939"]  [White "Herbert Seidman"]  [Black "Anthony Santasiere"]  1. e4 c5 2. Nf3 Nf6 $5 3. e5 Nd5 4. Nc3 (4. d4 $5) 4... Nxc3 ({The main line goes} 4... e6 5. Nxd5 exd5 6. d4 Nc6 7. dxc5 Bxc5 8. Qxd5 d6 (8... Qb6 9. Bc4 Bxf2+ 10. Ke2 O-O 11. Rf1 Bc5 12. Ng5 Nd4+ 13. Kd1 Ne6 14. Ne4 $14) 9. Bd3 Qa5+ (9... Nb4 $1) 10. Kf1 Be6 11. Qe4 Qb6 $11) 5. dxc3 b6 $2 (5... d5 6. exd6 exd6 7. Bc4 Be7 8. Bf4 O-O 9. Qe2 $16) 6. Bc4 $2 (6. e6 $1 dxe6 (6... fxe6 7. Ne5 $18) 7. Qxd8+ Kxd8 8. Ne5 Ke8 9. Bb5+ Bd7 10. Nxd7 Nxd7 11. Bf4 a6 12. Bc6 $18 {Rellstab-Schoenmann, Hamburg 1932}) 6... e6 7. Bf4 Qc7 ({The immediate} 7... Bb7 {is a bit better}) 8. O-O Bb7 (8... Nc6 9. Re1 h6 10. Nd2 $14) 9. Qe2 (9. Re1 $1 h6 10. Nd2 Nc6 11. Ne4 Nxe5 12. Qh5 d6 13. Bxe6 g6 14. Qh3 $14) 9... a6 $6 (9... h6 $11) 10. a4 (10. Rfd1 b5 11. Bd3 Nc6 12. c4 $14 {is stronger}) 10... Nc6 11. Rad1 (11. Bg3 Ne7 12. Bd3 Qc6 13. Rfd1 Nf5 14. Bxf5 exf5 15. Qd3 $14 {maintains some edge}) 11... Be7 $6 (11... Na5 $1 12. Bd3 f5 $11) 12. Rd2 (12. Rfe1 $14 {is better}) 12... O-O $6 (12... Na5 13. Rfd1 $14) 13. Rfd1 Rfd8 14. Ng5 h6 $2 {Missing the coming combination} (14... Bxg5 15. Bxg5 Nxe5 16. Bxd8 Rxd8 17. Bxa6 $16 {is a lot better than what happens in the game}) 15. Nxf7 $1 Kxf7 16. Rxd7 $1 Qxd7 (16... Rxd7 17. Bxe6+ Kxe6 (17... Kf8 18. Rxd7 $18) 18. Qc4+ Kf5 19. Qf7+ Bf6 20. Rxd7 $18) 17. Rxd7 Rxd7 18. Qh5+ g6 $2 {Black chooses a quick death} (18... Kf8 19. Bxe6 $18) 19. Bxe6+ Kxe6 20. Qxg6+ Bf6 21. Qxf6+ Kd5 22. Qf5 Re7 $2 ({After} 22... Kc4 {it will take White 17 moves to checkmate Black}) 23. e6+ Ne5 24. Qxe5+ Kc6 25. Qd6# 1-0  

  [Event "2006 Massachusetts Open"]  [Site "Marlborough, MA"]  [White "Josef Friedman"]  [Black "Alexander Ivanov"]  [Result "0-1"]  [Annotator "ATH"]  [ECO "B06"]  [WhiteElo "2217"]  [BlackElo "2664"]  [PlyCount "42"]  [GameId "2206970145468805"]  [EventDate "2006.05.??"]  [EventType "swiss"]  [EventRounds "6"]  [EventCountry "USA"]  [SourceTitle "CH, July-Sept 2006"]  [SourceDate "2020.07.11"]  [SourceVersionDate "2020.07.11"]   1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Be3 (4. Bc4 $14 {is Stockfish's preference}) 4... Qb6 (4... Nf6 5. Qd2 d5 6. e5 Ng4 7. Bf4 $14) 5. a3 (5. Rb1 Nf6 6. Be2 $14) 5... d6 (5... Nf6 6. Be2 $14 {Zvjaginsev-Bologan, Mainz rapid 2010}) 6. Bc4 (6. Nf3 $14) 6... e6 $6 (6... Nf6 7. f3 d5 $1 8. exd5 cxd5 9. Bxd5 Qxb2 10. Nge2 Qb6 $11) 7. Nge2 (7. f3 $5 $16) 7... d5 (7... Nf6 $5 8. f3 $16) 8. Bb3 Nf6 (8... h5 $5) 9. Ng3 (9. Qd2 $1 $16) 9... h5 (9... O-O 10. e5 Nfd7 11. h4 $16) 10. e5 $6 (10. Qd2 Nbd7 11. f3 $14) 10... Ng4 11. O-O (11. Qd2 Nxe3 12. fxe3 Nd7 $11) 11... Nd7 $6 (11... c5 $1 12. dxc5 Qd8 13. Bd4 Nc6 $11) 12. Bg5 c5 (12... Bh6 $1 13. Na4 Qa5 14. Bc1 $1 $14) 13. h3 cxd4 14. Nxd5 $2 (14. Na4 $1 Qa6 15. hxg4 h4 16. Ne4 (16. Ne2 b5 17. Qxd4 Bxe5 18. Qb4 Bd6 19. Qc3 Be5 20. Qe3 bxa4 21. Bxd5 $1 $14) 16... dxe4 17. Qxd4 Bxe5 18. Qxe4 $14) 14... exd5 15. hxg4 h4 (15... hxg4 $5 16. Re1 O-O 17. Qxg4 Nxe5 18. Qf4 f6 19. Bxd5+ Be6 20. Bxe6+ Qxe6 21. Bh6 g5 22. Qf5 Qxf5 23. Nxf5 Bxh6 24. Nxh6+ Kh7 $11) 16. Ne2 $6 (16. e6 $1 hxg3 17. exd7+ Bxd7 $11) 16... Nxe5 17. Nf4 Bxg4 18. Qe1 $6 (18. f3 Be6 19. Nxe6 Qxe6 20. f4 f6 21. fxe5 fxg5 22. Ba4+ Kd8 $17) 18... h3 $1 19. Nxh3 $2 (19. f3 Be6 20. Ba4+ Kf8 21. g3 d3+ $19) 19... Rxh3 $2 (19... Bxh3 $1 $19) 20. gxh3 $6 Qe6 $6 (20... Bxh3 21. Bxd5 Bxf1 22. Qxf1 Rc8 $17) 21. Bxd5 $4 (21. f3 Bxh3 22. Qb4 Nxf3+ $1 23. Rxf3 Qg4+ 24. Kf2 Qg2+ 25. Ke1 Qg1+ $11) 21... Qxd5 0-1  

  [Event "Soviet Junior Championship"]  [Site "Pinska 1989"]  [Round "?"]  [White "Kramnik, Vladimir"]  [Black "Rublevsky, Sergei"]  [Result "1-0"]  [Annotator "ATH"]  [ECO "B23"]  [PlyCount "109"]  [GameId "2125412143345160"]  [EventDate "1989"]  [EventCountry "EST"]  [SourceTitle "LF14_08"]  [SourceDate "2014.08.06"]  [SourceVersion "1"]  [SourceVersionDate "2014.08.06"]  [SourceQuality "2"]   1. e4 c5 2. f4 g6 3. Nf3 Bg7 4. Nc3 Nc6 5. Bb5 Nd4 6. O-O Nxb5 7. Nxb5 Nf6 (7... a6 $5) 8. Nc3 (8. e5 Nd5 9. d4 Nc7 10. Nc3 cxd4 11. Qxd4 O-O 12. f5 $1 $14 {Crawley-Ravisekhar, BCF-ch 1986}) 8... d6 9. d3 O-O (9... b6 10. Qe1 Bb7 11. Bd2 Qd7 $11 {Westerberg-Smith, Malmo rapid 2021}) 10. Qe1 e6 (10... Ne8 $11) 11. Kh1 (11. Qh4 Nd7 $11) 11... b6 12. Qh4 Nd7 13. Qg3 (13. Qh3 $5) 13... f5 14. Bd2 Nf6 (14... Bb7 15. Rae1 Qc7 $11) 15. e5 Nh5 (15... dxe5 16. Nxe5 a6 17. Rae1 Qc7 $11) 16. Qf2 Bb7 17. Rae1 Bxf3 (17... a6 18. a4 Rb8 $11) 18. Qxf3 d5 (18... dxe5 19. fxe5 Qd7 $11) 19. Nb5 (19. d4 Qd7 (19... cxd4 $2 20. Nb5 $14) 20. dxc5 bxc5 $11) 19... Bh8 $6 (19... Qd7 20. Nd6 Nf6 $1 21. b3 (21. exf6 Bxf6 22. Nxf5 exf5 $11) 21... Ne8 $11) 20. Nd6 (20. Re2 $1 Ng7 21. c4 $14) 20... Ng7 $6 (20... Nf6 21. b4 $1 $14) 21. c4 dxc4 22. dxc4 Ne8 23. Bc3 Nxd6 24. Rd1 Ne4 $2 (24... Qe8 25. exd6 Bxc3 26. Qxc3 Rd8 27. Qe5 $14) 25. Rxd8 Rfxd8 26. Kg1 $1 Rd7 (26... Bg7 {is slightly better, according to Stockfish, but not enough to matter}) 27. Rd1 Rad8 ({ditto with} 27... Re7) 28. Rxd7 Rxd7 29. Kf1 (29. Be1 {is stronger but it doesn't really matter. Black doesn't have enough for the queen.}) 29... Bg7 30. Ke2 (30. Be1 {See the last note}) 30... Bf8 31. Be1 {From here on, I will point out whatever Stockfish regards as an improvement but will only comment or analyze if it would have mattered.} Be7 (31... Bh6) 32. Qa3 (32. g4) 32... Kf7 33. Qa4 (33. g4) 33... Rc7 34. Qb5 (34. g4 $1 {is more than a pawn (or is it point?) stronger so this probably prolongs the game}) 34... h6 $2 {is more than a point (or pawn) weaker so this probably shortens the game. For the rest of the game, I will simply use an ! or ? to indicate when the move played is that much worse than Stockfish's recommendation. In no case, does it change the outcome.} (34... g5) 35. a4 (35. g4) 35... Bd8 (35... g5) 36. a5 (36. g4) 36... Re7 37. b4 (37. g4) 37... g5 38. g3 (38. g4 $1) 38... g4 39. Qc6 (39. Kf1 $1) 39... Bc7 (39... Rc7) 40. bxc5 (40. Qa8 $1) 40... bxc5 (40... bxa5) 41. Qa8 h5 42. Qxa7 (42. Kf1 $1) 42... Bxe5 43. Qb6 (43. Qa8) 43... Bc7 44. Qc6 (44. Qb2) 44... e5 $2 (44... h4) 45. fxe5 (45. a6 $1) 45... Bxe5 46. Kf1 h4 (46... Kg7) 47. gxh4 Bxh2 48. h5 Bd6 49. a6 g3 (49... Be5) 50. Qb6 f4 (50... Re8) 51. a7 f3 (51... Rxa7 $1) 52. a8=Q g2+ 53. Kg1 Nf6 (53... Re6) 54. Bf2 (54. Qxf3) 54... Bf4 (54... Re6) 55. Qxf3 1-0  

  [Event "Nor'Easter op"]  [Site "Watertown, MA"]  [Date "1992.04.05"]  [White "Patrick Wolff"]  [Black "Charles Hertan"]  [Result "1-0"]  [Annotator "ATH"]  [ECO "C42"]  [WhiteElo "2646"]  [BlackElo "2475"]  [PlyCount "85"]  [GameId "2178554133533577"]  [EventDate "1992.04.??"]  [EventType "swiss"]  [EventRounds "4"]  [EventCountry "USA"]  [SourceTitle "CH May-June 1992"]  [SourceDate "2009.07.13"]  [SourceVersionDate "2009.07.13"]   1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 Be7 6. Bd3 Nf6 7. h3 d5 {This is actually a position from the Exchange Variation of the French Defense (according to ChessBase's classification system--I suspect it's reached more often via the Petroff move order)} 8. O-O O-O 9. c3 (9. Re1 $1 Nc6 10. c3 Re8 11. Bf4 $14 {Stockfish}) 9... c5 (9... Re8 $1 $11 {Stockfish}) 10. Bf4 (10. Nbd2 $1 $14 {Stockfish}) 10... Nc6 11. dxc5 Bxc5 12. Nbd2 Be6 (12... Nh5 13. Bh2 Bd6 14. Bxd6 Qxd6 $11 {Stockfish}) 13. Nb3 (13. Qc2 $5) 13... Bb6 14. Re1 Qd7 $6 (14... h6 15. Nbd4 $14) 15. Ne5 (15. a4 $1 $14) 15... Qc8 16. Bg5 $6 (16. Nxc6 $1 bxc6 17. Nd4 $14) 16... Nxe5 (16... Ne4 $1 17. Bxe4 dxe4 18. Nxc6 (18. Rxe4 $2 f6 19. Nxc6 Qxc6 20. Rxe6 Bxf2+ $1 21. Kxf2 fxg5+ 22. Kg1 Qxe6 $19) 18... Qxc6 $11) 17. Rxe5 Nd7 $2 (17... Ne4 18. Bxe4 dxe4 19. Be3 (19. Rxe4 $2 Bxb3 20. axb3 Qf5 $19) 19... Bxe3 20. fxe3 $11) 18. Re1 (18. Qh5 $1 g6 19. Qh6 Re8 20. Re2 $16) 18... Nc5 19. Nxc5 Bxc5 (19... Qxc5 20. Qf3 $14 {is somewhat better for Black}) 20. Qh5 (20. Bc2 Bf5 21. Bb3 $16) 20... Bf5 21. Rad1 (21. Qf3 $1 $14 {is a bit better}) 21... Bxd3 22. Rxd3 Qf5 23. Rf3 Qg6 24. Qxg6 fxg6 25. Re5 (25. Rd1 $1 $14) 25... Rxf3 (25... Rae8 26. Rxf8+ Kxf8 27. Rxd5 Re1+ 28. Kh2 Bxf2 29. Rd8+ Re8 30. Rxe8+ Kxe8 31. g4 $16) 26. gxf3 h6 (26... Kf8) 27. Rxd5 Bxf2+ (27... b6 28. Be3 $18 {is an insufficient improvement for Black}) 28. Kxf2 hxg5 29. c4 (29. a4 $1 $18 {is somewhat more accurate}) 29... Rc8 30. b3 Rc7 (30... b6 {puts up slightly more resistance}) 31. Rxg5 (31. c5 $5) 31... Kf7 32. f4 (32. Rd5 $5) 32... b6 (32... Kf6 $5) 33. Ke3 Rc8 34. Kd4 (34. Rd5 $1 $18 {is quicker}) 34... Rh8 (34... Rc6 $5) 35. Rg3 Rd8+ 36. Ke5 Rd2 $6 (36... a5) 37. a3 Re2+ (37... a5 $5) 38. Kd5 $2 {Throws away the lion's share of White's winning edge.} (38. Kd6 $18 {is the quick method, e.g.,} Re7 39. b4 $18 {etc.}) 38... Kf6 $2 (38... Re6 {and White may still be winning but it's game and there's hope for salvation.}) 39. b4 Rd2+ (39... Ke7 {is a tiny and irrelevant improvement}) 40. Kc6 Rd4 41. c5 bxc5 42. bxc5 Rxf4 43. Kb7 1-0  

  [Event "New England Open 1997"]  [White "Igor Foygel"]  [Black "Steven Winer"]  [Result "1-0"]  [Annotator "ATH"]  [ECO "D80"]  [WhiteElo "2484"]  [BlackElo "2233"]  [PlyCount "85"]  [GameId "2176423564303167"]  [EventDate "1997.08.??"]  [EventType "swiss"]  [EventRounds "6"]  [EventCountry "USA"]  [SourceTitle "Chess Horizons?"]  [Source "ChessBase"]  [SourceDate "1998.11.10"]  [SourceVersion "1"]  [SourceVersionDate "1998.11.10"]  [SourceQuality "1"]   1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. e3 Bg7 5. b4 $5 O-O ({Stockfish suggests} 5... Be6 {which isn't in the database}) 6. Nf3 b6 (6... c6 7. Bb2 Be6 8. cxd5 Nxd5 9. a3 a5 $11) 7. Qb3 (7. Ba3 $1 e6 $11 {Tornai-Liptay, Hungary 2013}) 7... c5 8. cxd5 cxb4 (8... cxd4 9. Nxd4 Bb7 10. Bc4 a6 11. Bb2 b5 12. Be2 Nxd5 13. Bf3 Nxc3 14. Bxb7 Ra7 15. Bxc3 Rxb7 16. O-O Rc7 $11 {Drasko-Jansa, Sarajevo 1981}) 9. Qxb4 Nxd5 10. Nxd5 Qxd5 11. Bc4 Qd8 12. O-O (12. Ba3 $5) 12... Nc6 13. Qa3 (13. Qd2 $5) 13... Bb7 (13... Bg4 $11) 14. Bd2 Rc8 (14... Qd7 $5 $11) (14... e6 $5 $11) 15. Rac1 e6 16. Rfd1 a6 $2 (16... Qe7 $11) 17. Bxa6 Ra8 $6 (17... Qd7 18. Bb5 $16) 18. Qxf8+ $1 Bxf8 19. Bxb7 Na5 (19... Ne7 20. Bxa8 $18 {is a small improvement for Black}) 20. Bxa8 Qxa8 21. Bxa5 (21. Rc2 $18) 21... bxa5 22. Ne5 (22. h3 $5) 22... Bd6 23. Nc6 (23. Nc4 $1 $18 {is even stronger}) 23... Qa6 (23... a4 {is another small improvement}) 24. d5 e5 $2 (24... exd5 25. Rxd5 $18 {is a larger improvement}) 25. a4 Kg7 (25... g5 $5) 26. Rb1 Qc4 $6 (26... g5) 27. Nxa5 Qxa4 (27... Qe2 {might prolong the game without changing the result}) 28. Nb7 Qd7 $2 (28... Be7 {is a futile improvement}) 29. Nxd6 Qxd6 30. Rbc1 h5 $2 (30... g5 {but it doesn't matter in the least}) 31. Rc6 Qd7 32. d6 (32. h3 {is irrelevantly stronger}) 32... h4 ({Black's position is so frelled that Stockfish thinks} 32... Qxc6 33. d7 $18 {is Black's best}) 33. h3 g5 34. Rc7 Qa4 35. Rcc1 (35. Rd2 {is even quicker}) 35... Qd7 36. Rc4 Kg6 37. Kh2 (37. Rc7 {lowers the boom immediately. Nothing matters from here on out.}) 37... f5 38. e4 f4 39. f3 g4 40. hxg4 h3 41. gxh3 Qd8 42. Rc2 Qh4 43. Rg2 1-0  

  [Event "New York 1976"]  [Round "?"]  [White "Ken Regan"]  [Black "Michael Wilder"]  [Result "1-0"]  [Annotator "ATH"]  [ECO "B22"]  [PlyCount "45"]  [GameId "2153560704653061"]  [EventDate "1976.??.??"]  [EventType "swiss"]  [EventCountry "USA"]  [SourceTitle "StarBase 2.88"]  [Source "Pickard & Son"]  [SourceDate "2003.01.15"]  [SourceVersion "1"]  [SourceVersionDate "2003.01.15"]  [SourceQuality "2"]   1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. cxd4 (5. Nf3 $5) 5... e6 (5... d6 $5) 6. Nf3 Nc6 7. Nc3 Nxc3 (7... d6 $11) 8. bxc3 d6 (8... Qc7 $11) 9. Bd3 (9. exd6 Bxd6 10. Bd3 $14) 9... dxe5 10. dxe5 Qa5 11. O-O Nxe5 12. Nxe5 Qxe5 13. Re1 Qa5 $6 (13... Qc7 14. Bb5+ Bd7 15. Bf4 Qc8 $11) 14. Rb1 a6 15. Qg4 g6 $2 (15... h5 16. Qc4 $14 {Pisk-Smistik, Ostrava op 2002}) 16. Qd4 Rg8 17. Be4 (17. Bc2 $5 Qc5 18. Qh4 $16) 17... Bc5 18. Qd3 (18. Qf6 $1 Qc7 19. Rd1 $18) 18... Qc7 19. Rd1 $6 (19. Qf3 Rb8 20. Bg5 $16) 19... f5 20. Bf3 Rg7 $2 (20... Ra7 21. Qd2 b6 $11) 21. Bf4 Qxf4 $2 (21... Qe7 22. Qd2 Rg8 23. Bg5 $18 {prolongs the game without changing the result}) 22. Qd8+ Kf7 23. Rxb7+ $1 1-0  

  [Event "1968 US Jr ch"]  [White "Ken Rogoff"]  [Black "James Tarjan"]  [Result "0-1"]  [ECO "C81"]  [PlyCount "68"]  [GameId "2122484036876059"]  [EventDate "1968.??.??"]  [EventType "team"]  [EventCountry "USA"]  [SourceTitle "StarBase 2.88"]  [Source "Pickard & Son"]  [SourceDate "2003.01.15"]  [SourceVersion "1"]  [SourceVersionDate "2003.01.15"]  [SourceQuality "2"]   1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Qe2 (9. Nbd2 Bc5 10. Nxe4 dxe4 11. Ng5 Qxd1 12. Rxd1 Bxb3 13. axb3 Nxe5 14. Nxe4 $14 {according to Stockfish}) 9... Nc5 ({Slightly better is} 9... Be7 10. Nbd2 Nc5 11. Rd1 O-O 12. c3 Re8 $11 {again according to Stockfish}) 10. Rd1 Nxb3 11. axb3 Qc8 12. c4 dxc4 13. bxc4 Bxc4 14. Qe4 Nb4 15. Na3 (15. Bg5 $5 h6 16. Rd8+ Qxd8 17. Bxd8 Rxd8 18. Nc3 $14) 15... Bb3 $2 (15... Be6 16. Nxb5 Rb8 17. Nbd4 $16) 16. Nxb5 $1 Rb8 17. Nd6+ $1 cxd6 18. exd6+ Qe6 19. d7+ Kd8 20. Bg5+ $2 (20. Qf4 $1 Rb7 21. Ng5 Qf6 22. Qe3 $18) 20... f6 21. Qf4 Qb6 22. Rd2 $2 (22. Bh4 $17) 22... fxg5 23. Qe5 (23. Nxg5 Be7 $19 {as in Forsberg-Wijk, Norway 1974 is a small improvement}) 23... Be7 (23... Nc6 $1 24. Qe8+ Kc7 25. d8=Q+ Rxd8 26. Rxd8 Nxd8 {is even more efficient. Presumably, White is playing on, down two pieces, because of time trouble. Or it could be sheer masochism.}) 24. Re1 Nc6 (24... Bf6 {is more efficient}) 25. Qxg7 Rg8 26. Qc3 Qc5 ({as is} 26... Rg6) 27. Rxe7 Qxc3 28. Re8+ Rxe8 ({and} 28... Kc7 $1 29. Rc8+ Rgxc8 30. dxc8=Q+ Rxc8 31. bxc3 $19) 29. dxe8=Q+ Kxe8 30. bxc3 h6 (30... a5 $1) 31. Rd6 Rd8 32. Rxd8+ Kxd8 33. h4 g4 34. Nd2 Be6 0-1  

  [Event "London 1979"]  [White "John Nunn"]  [Black "Mark Hebden"]  [Result "1-0"]  [ECO "C29"]  [PlyCount "41"]  [EventDate "1979.??.??"]  [SourceTitle "StarBase 2.88"]  [Source "Pickard & Son"]  [SourceDate "2003.01.15"]  [SourceVersion "1"]  [SourceVersionDate "2003.01.15"]  [SourceQuality "2"]   1. e4 e5 2. Nc3 Nf6 3. f4 {This may be (old) mainline but both} (3. Nf3 {and}) (3. Bc4 {are preferable}) 3... d5 4. fxe5 Nxe4 5. d3 $6 {Ignore what the books say. Stockfish says} (5. Qf3 {is better and that's good enough for me. A sample line is} f5 (5... Nc6 6. Bb5 Nxc3 7. dxc3 a6 8. Bxc6+ bxc6 9. Qf2 $11) 6. d3 Nxc3 7. bxc3 d4 8. Qg3 dxc3 9. Be2 $1 $11) 5... Nxc3 6. bxc3 d4 7. Nf3 Nc6 8. Be2 Bc5 (8... dxc3 {is better, e.g.,} 9. O-O Qd5 $1 $15) 9. O-O dxc3+ 10. Kh1 O-O 11. Qe1 Nd4 12. Bd1 Nxf3 (12... Re8 $1 13. a4 $1 f6 $15) 13. Bxf3 Be6 (13... a5 $1 $15) 14. Qg3 Kh8 (14... f5 $1) 15. Be4 (15. Bxb7 $1 Rb8 16. Be4 $11 {Skaslien-Ruthen, ICCF corr. 1988}) 15... Bd5 $2 (15... f5 $1 16. exf6 Rxf6 17. Bf4 Bd6 $1 18. Bxd6 Qxd6 19. Rxf6 Qxg3 20. hxg3 gxf6 $15) 16. Bg5 Qd7 (16... f6 {puts up more (but futile) resistance, e.g.,} 17. exf6 gxf6 18. Rxf6 $1 Bd6 (18... Rxf6 $2 19. Qh4 $18) 19. Qf2 Bxe4 20. Qd4 $1 Kg8 21. dxe4 Be7 22. Rxf8+ Qxf8 23. Qd5+ $18) 17. Bxh7 $1 Kxh7 (17... Qc6 {prolongs the game without changing the result, e.g.,} 18. Be4 Bxe4 19. dxe4 Qg6 20. Rf4 f6 21. Qh3+ Kg8 22. Bxf6 $1 $18) 18. Bf6 $1 g5 (18... gxf6 19. Rf4 $18) 19. Qxg5 Bxg2+ 20. Qxg2 Rg8 21. Qe4+ 1-0  

  [Event "1983 Labour Day Open"]  [Site "Toronto"]  [White "Lawrence Day"]  [Black "Kevin Spraggett"]  [Result "1-0"]  [ECO "B21"]  [PlyCount "91"]  [GameId "2110486856128507"]  [EventDate "1983.09.03"]  [EventType "swiss"]  [EventRounds "6"]  [EventCountry "CAN"]  [SourceTitle "Canbase"]  [SourceDate "2015.08.19"]  [SourceVersion "1"]  [SourceVersionDate "2015.08.19"]  [SourceQuality "1"]   1. e4 c5 2. f4 d5 3. exd5 Qxd5 (3... Nf6 $1 4. Nc3 Nxd5 5. Nf3 Nc6 6. Bb5 e6 7. Bxc6+ bxc6 $11 {Roynet-Razumikhin, ICCF email 2017}) 4. Nc3 Qd8 5. Nf3 Nf6 (5... Nc6 $1 6. Bb5 Bd7 7. d3 e6 $11) 6. Ne5 (6. d4 $1 e6 (6... cxd4 7. Qxd4 Bd7 8. Qf2 $14) 7. Be3 cxd4 8. Qxd4 Qxd4 9. Nxd4 Bb4 10. Ndb5 $14 {Jaekel-Folk Gilsanz, ICCF email 2015}) 6... a6 (6... g6 $1 7. Bc4 e6 $11) 7. Qf3 (7. g3 $5) 7... e6 (7... Qc7 $1 $11 {Rahimli-Ozsakallioglu, Istanbul 2019}) 8. b3 (8. Bd3 Nfd7 $11 {is a small improvement for White}) 8... Be7 (8... Nbd7 $1 9. Bb2 Qc7 $11) 9. Bb2 O-O (9... Nfd7 $5) 10. O-O-O Nbd7 (10... Nfd7 $5) 11. Bd3 Nxe5 $6 (11... Qc7 12. Rhe1 (12. a4 $5) 12... b5 (12... g6 $5) 13. Nxd7 Bxd7 14. Ne4 $14) 12. fxe5 Nd5 (12... Nd7 13. Qe4 f5 14. exf6 Nxf6 15. Qe2 $18) 13. Qe4 $6 (13. Ne4 $1 g6 14. Nf6+ Bxf6 15. exf6 $18) 13... g6 14. h4 Nb4 15. Be2 Qd4 $6 (15... Bd7 16. h5 g5 17. h6 $16) 16. Qf3 Qxe5 $2 (16... f5 17. exf6 Rxf6 18. Qh3 e5 19. Qh2 Be6 20. h5 $18 {puts up more resistance}) 17. Ne4 Qf5 18. Qe3 e5 $6 (18... f6 19. g4 $18 {is a fruitless improvement}) 19. Rdf1 Nd5 20. Rxf5 Nxe3 21. Rxe5 Nf5 22. Rxe7 $2 (22. g4 f6 23. Bc4+ Kg7 24. g5 $1 b5 25. Rxe7+ Nxe7 26. gxf6+ $18 {And it's over. Instead, Black gets a new lease on life and resistance is no longer quite so futile.}) 22... Nxe7 23. Nf6+ (23. h5 $1 $18 {with Nf6+ to follow is even stronger}) 23... Kg7 24. Nd5+ f6 25. Nxe7 Re8 26. Rf1 Rxe7 27. Bxf6+ Kf8 28. Bxe7+ Kxe7 29. Bc4 Bf5 30. g4 Bxg4 31. Rf7+ Kd6 32. Rxb7 h5 (32... Rh8 33. a4 $18 {is a trivial and irrelevant improvement for Black}) 33. Rb6+ Ke5 ({and so is} 33... Kd7) 34. Rxg6 Kf4 ({Likewise} 34... a5) 35. Rxa6 Rh8 ({And} 35... Rd8) 36. a4 Kg3 37. a5 Kxh4 ({For some reason, Stockfish thinks} 37... Kh3 38. Rf6 Ra8 39. a6 Kxh4 40. Rg6 $18 {is an improvement for Black. I don't quite know why and I don't care. Black can resign. I suspect that time pressure (on one side or both) is the only reason he's still playing.}) 38. Rg6 Bf3 (38... Rd8 {is another meaningless improvement. No point in handing out question marks when they're so irrelevant.}) 39. a6 Kh3 ({If anyone cares, Stockfish prefers} 39... Be4) 40. Rg5 (40. d4 $1 cxd4 41. b4 $18 {is the quick method}) 40... h4 41. Be6+ ({Again} 41. d4 $1) 41... Kh2 42. Rxc5 (42. Bg8 Rh6 43. a7 h3 44. c4 Ra6 45. Rg7 {etc. is even stronger for White (so says Stockfish)}) 42... h3 (42... Ra8 {is better but who cares?}) 43. b4 (43. Rc3 $1 Kg2 44. Bxh3+ Rxh3 45. b4 {Black's not the only one with irrelevant improvements}) 43... Rh6 44. Bxh3 (44. Bc8 {same as before}) 44... Kxh3 (44... Rxa6 {would needlessly prolong the game}) 45. b5 Kg4 46. Rc8 1-0