Nelson Lopez v NN
1.e4 ♘otes by Stockfish 11 (minimum 6s/ply) c5 2.Nf3 e6 better is 2...d6 3.♘c3 ♘f6 4.♗e2 e6 5.O-O ♗e7 6.d4 cxd4 = -0.20 (43 ply) 3.b4 ? 3.d4 cxd4 4.♘xd4 ♘f6 5.♘c3 ♘c6 6.♗e2 ♗b4 7.O-O ♗xc3 ⩲ +0.54 (41 ply) cxb4 ⩱ -0.79 (31 ply) 4.a3 bxa3 better is 4...♘f6 5.e5 ♘d5 6.axb4 ♗xb4 7.♘a3 ♘c6 8.c4 ♘de7 ⩱ -0.59 (31 ply) 5.Rxa3 ? 5.d4 d5 6.exd5 exd5 7.♗b5+ ♘c6 8.♕e2+ ♗e6 9.♗xc6+ = 0.00 (32 ply) Bxa3 ∓ -2.15 (31 ply) 6.Bxa3 d5 ? 6...a6 7.c4 ♘e7 8.♘c3 b5 9.♕b1 ♘bc6 10.♗d6 b4 11.♘a4 ∓ -2.26 (29 ply) 7.e5 ? 7.exd5 ♘e7 8.♗b5+ ♗d7 9.♘c3 O-O 10.dxe6 ♗xe6 11.O-O ⩱ -1.40 (31 ply) Ne7 ∓ -2.35 (31 ply) 8.d4 O-O better is 8...♕a5+ 9.c3 ♗d7 10.♘g5 h6 11.♕h5 g6 12.♕f3 ♘f5 -+ -2.56 (23 ply) 9.Bd3 ∓ -1.81 (24 ply) g6 ? 9...h6 10.c3 ♘bc6 11.h4 f6 12.exf6 ♖xf6 13.O-O ♗d7 -+ -2.63 (32 ply) 10.h4 ± +1.62 (33 ply) Kg7 ? 10...f5 11.h5 ♖f7 12.♘g5 ♖g7 13.h6 ♖f7 14.♘xf7 ♔xf7 15.c3 ⩲ +0.98 (31 ply) 11.h5 +- +4.09 (32 ply) Rh8 ? 11...♘bc6 12.♕c1 ♘g8 13.♘c3 h6 14.hxg6 fxg6 15.♗xf8+ ± +1.94 (31 ply) 12.h6+ +- +4.59 (32 ply) Kg8 13.Ng5 better is 13.♕c1 ♘d7 14.♕f4 a6 15.♘g5 ♕e8 16.♖h3 b5 17.g4 ♘c6 +- +4.66 (32 ply) Qe8 ? 13...b5 14.♕d2 b4 15.♗xb4 ♘f5 16.c3 ♗a6 17.♗c2 ♘c6 18.♗c5 ± +2.31 (31 ply) 14.Qf3 +- +5.63 (31 ply) after 14.♕g4 a6 15.♘c3 ♘d7 16.♕h4 ♘c6 17.♖h3 b5 18.♗d6 ♘d8 Nd7 15.Bb5 Nc6 ? 15...♘f5 16.♕f4 ♕d8 17.♗d3 ♘f8 18.g4 ♗d7 19.♔f1 ♖c8 +- +4.93 (32 ply) 16.Rh4 +- +11.61 (35 ply) a6 17.Bxc6 bxc6 18.Rf4 Rb8 19.Nd2 +- mate-in-5 after 19.♖xf7 ♕e7 20.♗xe7 ♖xb1+ 21.♔d2 ♖d1+ 22.♔xd1 a5 f5 20.exf6 Nxf6 21.Rxf6 Bd7 22.Rf7 e5 23.Rg7#
Prochazka - Stephenson Feb. 1981 in HK 1.e4 e5 2.Nf3 Nc6 3.c3 Nf6 4.Bb5 a6 5. Bxc6 bxc6 6. O-O d6 7. d4 Nd7 8. Nbd2 Be7 9. Nc4 exd4 10. Nxd4 Bb7 11. Na5 Qb8 12. Naxc6 Bxc6 13. Nxc6 Qb7 14. Nxe7 Kxe7 15. Qg4 h6 16. b4 Ne5 17. Qg3 Qxe4 18. f4 Nd3 19. Rf3 Nxc1 20. Rxc1 Qg6 21. Re3+ Kd7 22. Qf3 Rae8 23. Rxe8 Rxe8 24. Qb7 Qd3 25. Rf1 Re2 26. a4 Qe3+ 27. Kh1 Qf2 28. Rg1 Re1 0-1

Game played by Mark Barrett Stephenson via correspondence vs Sheldon Rosner 1972-3 1.e4 ♘otes by Stockfish 11 (minimum 6s/ply) c5 2.b4 ? 2.♘f3 e6 3.c3 d5 4.exd5 exd5 5.♗b5+ ♘c6 6.O-O ♘f6 ⩲ +0.53 (35 ply) Nf6 ? 2...cxb4 3.a3 e5 4.♘f3 ♘c6 5.♗b5 a6 6.axb4 ♘f6 7.c3 ⩱ -0.56 (30 ply) 3.e5 ⩲ +0.80 (33 ply) Nd5 4.bxc5 Qa5 ? 4...d6 5.♗b5+ ♘c6 6.♘f3 dxc5 7.♗xc6+ bxc6 8.O-O ♗f5 ⩲ +0.59 (31 ply) 5.Ba3 ? 5.c4 ♘f4 6.♗b2 d6 7.g3 ♘e6 8.♗c3 ♕c7 9.exd6 exd6 ± +1.56 (32 ply) e6 = +0.36 (33 ply) 6.Qg4 ? 6.c4 ♘f4 7.♕f3 ♘g6 8.♕c3 ♕xc3 9.♘xc3 b6 10.♘b5 ♘a6 ⩲ +1.01 (32 ply) b6 ⩱ -0.76 (33 ply) after 6...♘c6 7.♘f3 b6 8.♗b2 bxc5 9.♘a3 ♗a6 10.♗xa6 ♕xa6 7.c4 Nb4 8.Bxb4 Qxb4 9.Nc3 Qxc5 10.Nf3 g6 ? 10...♘c6 11.♕g3 ♗b7 12.♗e2 ♘d4 13.♘xd4 ♕xd4 14.♖d1 a6 ⩱ -0.79 (35 ply) 11.Ne4 +- +2.56 (32 ply) Qc7 ? 11...♕a5 12.♘f6+ ♔d8 13.♗e2 ♘c6 14.♕g3 ♗c5 15.♕f4 h6 ± +1.63 (26 ply) 12.Nf6+ +- +2.78 (25 ply) Ke7 ? 12...♔d8 13.♕f4 ♗b7 14.♘g5 d6 15.♘fe4 ♗xe4 16.♕f6+ ♕e7 ± +2.50 (34 ply) 13.Qg5 better is 13.♕h4 ♕d8 14.d4 ♗g7 15.♘h5+ f6 16.exf6+ ♗xf6 17.♘xf6 +- +8.81 (33 ply) Qd8 +- +4.36 (25 ply) 14.d4 Bg7 15.Ne4+ f6 16.exf6+ Kf7 17.Nd6+ Kf8 18.fxg7+ Kxg7 19.Qe5+ Qf6 20.d5 Qxe5+ 21.Nxe5 Ba6 22.Rc1 Rf8 23.g3 23...exd5 24.cxd5 ♗xf1 25.♔xf1 ♘a6 26.♔g2 ♖ad8 27.♖he1 +- +7.41 (34 ply) * Game played by Mark Barrett Stephenson via correspondence vs Gerald Meyers in 1972-3 1.d4 ♘otes by Stockfish 11 (minimum 6s/ply) d5 2.Nf3 e6 3.Bg5 Nf6 4.c4 better is 4.e3 c5 5.♗d3 ♘c6 6.O-O h6 7.♗f4 g5 8.♗g3 c4 9.♗e2 = +0.30 (28 ply) Be7 ? 4...dxc4 5.♘c3 a6 6.a4 ♘c6 7.e3 ♘a5 8.♗e2 h6 9.♗h4 = -0.38 (31 ply) 5.Nc3 = +0.44 (29 ply) Nbd7 6.e3 c6 7.Qc2 O-O 8.Rd1 a6 better is 8...h6 9.♗f4 ♕a5 10.♘d2 ♘h5 11.♗e5 ♘hf6 12.♗g3 ♘h5 = 0.00 (37 ply) 9.c5 better is 9.a3 h6 10.♗f4 ♘h5 11.♗e5 ♘hf6 12.♗g3 ♘h5 13.♗d3 ♘xg3 ⩲ +0.54 (30 ply) h6 = -0.19 (34 ply) 10.Bf4 ? 10.♗h4 b6 11.cxb6 ♕xb6 12.♗d3 c5 13.O-O ♕a7 14.♕e2 ♖e8 = +0.50 (35 ply) Nh5 ? 10...b6 11.cxb6 ♕xb6 12.♗d3 a5 13.O-O ♗a6 14.♗e5 ♖fc8 ⩱ -0.55 (37 ply) 11.Be5 = +0.33 (35 ply) Nxe5 ? 11...b6 12.cxb6 ♕xb6 13.♗e2 ♗b7 14.O-O ♕a7 15.♘a4 ♖fc8 = -0.30 (35 ply) 12.dxe5 better is 12.♘xe5 ♘f6 13.♗d3 ♘d7 14.♘xd7 ♗xd7 15.♘a4 ♖b8 16.f4 ♗e8 ⩲ +0.74 (32 ply) f6 ? 12...g6 13.b4 b6 14.♘a4 bxc5 15.♘xc5 a5 16.a3 ♘g7 17.♗d3 = +0.22 (34 ply) 13.Bd3 ? 13.♕g6 ♕e8 14.♕xe8 ♖xe8 15.g4 fxe5 16.gxh5 e4 17.♘e5 +- +2.52 (36 ply) f5 ? 13...fxe5 14.♘xe5 ♗xc5 15.♗h7+ ♔h8 16.♗d3 ♘f6 17.O-O ♗a7 = -0.25 (35 ply) 14.Na4 ± +1.83 (34 ply) g6 ? 14...♕c7 15.♘b6 ♖b8 16.♗e2 g6 17.g3 ♗d8 18.♕c3 ♕g7 19.♘d2 ⩲ +1.32 (32 ply) 15.Nb6 +- +2.53 (35 ply) Rb8 16.Nd4 Ng7 ? 16...♔h8 17.a4 ♕c7 18.f4 ♗d8 19.g3 ♕e7 20.a5 ♗d7 21.♔d2 ± +1.94 (30 ply) 17.O-O ? 17.f4 g5 18.a4 ♖f7 19.g3 ♕f8 20.♖c1 ♗d8 21.a5 ♗d7 22.♔d2 +- +2.80 (31 ply) Qc7 ± +1.55 (36 ply) 18.f4 Bd7 19.b4 Be8 20.g4 Kh7 better is 20...♗d8 21.♖d2 ♕e7 22.♖g2 ♔h7 23.h3 ♔h8 24.♕c3 ♗c7 ± +1.79 (31 ply) 21.Nxe6 ± +2.39 (34 ply) Nxe6 22.gxf5 Rg8 ? 22...♘g7 23.fxg6+ ♔h8 24.♖f3 ♗d7 25.♘xd7 ♕xd7 26.f5 ♗g5 ± +2.24 (32 ply) 23.fxe6 +- +7.36 (29 ply) Bf8 24.Kh1 Qe7 25.f5 gxf5 26.Rxf5 Kh8 27.Nd7 Bxd7 28.Rf7 Qxf7 29.exf7 Rg7 30.Rf1 Be6 31.Bg6 Be7 32.Rf6 Bxf6 33.exf6 Rxf7 34.Bxf7 Bxf7 35.Qf5 Rg8 36.Qd7 Bh5 37.h4 Bf3+ 38.Kh2 Rg2+ 39.Kh3 Bg4+ 40.Qxg4 Rxg4 41.Kxg4 Kg8 42.Kf5 42...♔f8 43.♔e6 a5 44.bxa5 d4 45.exd4 h5 46.f7 b6 47.cxb6 +- mate-in-9 *