Games
# 1 Stockfish 16 - Stockfish 17 ( both 2 cores@800 Mhz, 128 MB hash )
Date: 2025-01-24 no opening-books ~30s/move
1. e4 e5
2. Nf3 Nc6
3. Bb5 Nf6 ( The Berlin-variation )
4. 0-0 Nxe4
5. Re1 Nd6
6. Nxe5 Be7
7. Bf1 Nxe5
8. Rxe5 0-0
9. d4 Ne8 ! ( This differs from what Stockfish 16 would suggest )
10. d5 Bc5
11. Re1 d6
12. Nc3 Bf5
13. Bf4 h6
14. h3 a6
15. Bd3 Qf6
16. Ne4 Bxe4
17. Rxe4 Qxb2 ( An typical sacrifice on b2 for positional compensation )
18. Bd2 ! Nf6
19. Rf4 Nxd5
20. Rb1 Qe5
21. Rf5 Qd4
22. Qf3 Ne7
23. Rh5 Ng6
24. Be3 Qa4
25. Bxc5 Qxa2
26. Rxb7 dxc5
27. Qg3 Qa1
28. Kh2 Rae8 !
29. Bxg6 fxg6
30. Qxg6 Qf6
31. Qxf6 Rxf6
32. Rxc5 c6
33. f3 Re2
34. Rb4
1/2 - 1/2 ( according to evaluation of both engines )
#2 Stockfish 17 - Stockfish 16 ( both 2 cores@800Mhz, 128 MB hash )
Date: 2025-01-25 no opening-books ~30s/move
1. d4 Nf6
2. c4 e6* ( The first 2 moves were assigned by myself )
3. Nf3 b6
4. g3 Bb4
5. Bd2 Bxd2
6. Qxd2 Bb7
7. Bg2 0-0
8. 0-0 d5
9. cxd5 exd5
10. Nc3 c6
11. Rac1 Nbd7
12. b4 b5 ( White starts a minority-attack with b4.
13. a4 bxa4 b5 looks a bit strange, but is perfect playable here )
14. Ra1 a5
15. Rxa4 axb4
16. Rxb4 Ba6 ( The Bishop is in play again... )
17. Ra1 Bc4
18. Rab1 Qc7
19. Rb7 Qd6
20. Bh3 c5
21. Nh4 g6
22. Bxd7 Nxd7
23. Nf3 cxd4
24. Qxd4 Rfb8
25. Nd2 Rxb7
26. Rxb7 Qf6
27. Qxf6 Nxf6
28. Nxc4 Ra1
29. Kg2 dxc4
30. Rc7 Rc1 ( What's about Blacks isolani ? )
31. Nb5 Nd5
32. Rc5 Nc3
33. Nd4 h5
34. Kf3 Kg7
35. Rc6 Nd5
36. Rc5 Rc3
37. Kg2 Nb4
38. Nb5 Rc1
39. Kf3 Na2
40. Ke3 Rb1
41. Nd4 c3
42. Rc4 Rb2
43. Kd3 Rd2
44. Ke4 Rb2 ( finaly, Blacks isolani has proven to be no weakness )
1/2 - 1/2 ( according to evaluation of both engines )
#3 Stockfish 16 - Stockfish 17 ( both 2 cores@800Mhz, 128 MB hash )
Date: 2025-01-26 no opening-books ~60s/move
1. e4 c5
2. d4 cxd4
3. c3* dxc3 ( The first 3 moves were assigned by myself again, here we have the Morra-gambit accepted after dxc3. From GM-point-of-view the variation is dubious but dangerous. Black has to play very carefully. Let's see what the engines will produce here... )
4. Nxc3 Nc6
5. Nf3 d6
6. Bc4 a6
7. 0-0 e6
8. Qe2 Be7
9. Rd1 Bd7 ( amazing, probably the best continuation possible. )
10. h3 Qc7
11. Bb3 Rd8
12. Bf4 Ne5 ! ( According to evaluation it is always =+ )
13. Rac1 Qb8
14. Bh2 Nxf3
15. Qxf3 Nf6
16. Qe3 Bc6
17. Nd5 ! Bxd5 ( Black smells a rat here. exd5 ? exd5 Bd7 Re1 Ng8 Qb6 Kf8 Rxe7 +- )
18. exd5 e5
19. f4 Nd7
20. Ba4 b5
21. Bb3 0-0
22. Rc6 a5
23. Bc2 Bf6
24. Qe4 g6
25. f5 Qb7
26. Kh1 Bg7
27. Bg3 Nf6
28. Qf3 Qe7
29. Be4 Nxe4
30. Qxe4 gxf5
31. Qxf5 Qd7 ( =+ )
Game was aborted here. Although the Morra-gambit remains dangerous the typical advantage of having the first move goes over to Black regarding evaluation.
So, from GM-point-of-view this cannot be an option.
In human non-GM tournament-play the Morra is still alive, psychology is a factor here.
#4 Stockfish 16 - Stockfish 17 ( both 2 cores@800Mhz, 128 MB hash )
Date: 2025-01-29 no opening-books ~60s/move
1. e4 e6
2. d4 d5* ( The first 2 moves are predefined )
3. Nc3 Nf6
4. e5 Nfd7 ( The mainline-French, Steinitz-variation )
5. f4 c5
6. Nf3 Nc6
7. Be3 a6
8. Ne2(!) Be7
9. c3 0-0
10. Qc2 f6
11. h4 Qc7
12. g3 cxd4
13. Nexd4 Nxd4
14. Bxd4 fxe5
15. Nxe5 Bf6
16. Nxd7 Bxd7
17. 0-0-0 e5
18. fxe5 Bxe5
19. Bd3 h6
20. Qg2 Bc6
21. Bxe5 Qxe5
22. Rhe1 Qd6
23. Bc2 Rae8 ( += )
23. Rxe8 Rxe8
24. Rd4 Qe5
25. Bb3 Qe1
26. Rd1 Qe3
27. Kc2 Kh7(!) ( it is left to the reader to verify... )
28. Bxd5 Bxd5
29. Qxd5 Qxg3
30. Qxb7 Re2
31. Kb3 Qxh4
32. Qd5 Qf2
33. Ka3 Re3
34. Rd3 Rxd3
35. Qxd3 g6
36. Qd7 Kg8 ( = )
1/2 - 1/2 ( according to evaluation of both engines )
#5 Stockfish 17 - Stockfish 16 ( both 2 cores@800Mhz, 128 MB hash )
Date: 2025-02-01 no opening-books ~60s/move
1. e4 e5
2. Nf3 Nc6
3. Bb5 a6
4. Ba4 Nf6
5. 0-0* Nxe4 ( The first 5 moves are predefined, Spanish opening with Nxe4 ).
6. d4 b5
7. Bb3 d5
8. dxe5 Be6
9. Nbd2 Nc5 ( There is nothing wrong with 9. Nbd2, however, 9. c3 is more to the point and would be prefered by Stockfish 16 ).
10. c3 d4 !
11. Bxe6 Nxe6
12. cxd4 Ncxd4
13. Ne4 Qd5
14. Nxd4 Nxd4
15. Nc3 Qc4
16. Be3 Rd8
17. Rc1 Bb4
18. Bxd4 Qxd4
19. Qh5 0-0
20. Rfd1 Qf4
21. g3 Rxd1
22. Rxd1 Qc4
23. Nd5 Bc5
24. Qf5 Re8 =
1/2 - 1/2 ( according to evaluation of both engines )
#6 Stockfish 16 - Stockfish 17 ( both 2 cores@800Mhz, 128 MB hash )
Date: 2025-02-02 no opening-books ~60s/move
1. e4 c5
2. Nf3 d6
3. d4 cxd4 ( sometimes 3... Nf6 is seen, best is 4. Nc3 with transposition to mainline )
4. Nxd4 Nf6
5. Nxc3* a6 ( The popular Sicilian Najdorf-System, first 5 moves are given )
6. Be3 e5 ( According to B90 of ECO )
7. Nb3 Be6
8. f3 Be7
9. Qd2 Nbd7
10. g4 b5
11. g5 Nh5
12. 0-0-0 0-0 ( Straight forward and best... )
13. Kb1 Nb6
14. Na5 Qc7
15. Nd5 Nxd5
16. exd5 Bf5
17. Nc6 f6 ( a nice knight-outpost on c6 )
18. h4 Ng3
19. Rh2 Nxf1
20. Rxf1 fxg5
21. hxg5 Bg6
22. Rhf2 Rf5
23. f4 exf4
24. Bxf4 Bf8
25. b3 ! Re8
26. Kb2 Qd7
27. Be3 Rxf2
28. Rxf2 Qg4
29. Bd4 Bf7
30. c4 bxc4
31. bxc4 Re4
32. Qd3 Bh5
33. Kc3 Be7
34. Qf1 ! Qxg5 ( Interesting played, only a few human players would do... )
35. Qb1 Qg3
36. Kb4 Qg6
37. Rf4 Re2
38. Qxg6 Bxg6
39. Nxe7 Rxe7
40. Ka5 Bd3
41. c5 Re4
42. Rxe4 Bxe4
43. cxd6 Kf8
44. Kxa6 Ke8
45. Bxg7 Kd7
46. Be5 Bxd5
47. a3 Kc6
48. Bf4 h5
49. Ka5 Be6
1/2 - 1/2 ( according to evaluation of both engines )