# As Black, what is the fastest way to beat Gnu Chess on easy mode?

This is more of a puzzle. As far as I can ascertain, Gnu-Chess on easy mode always plays the same movesm What is the least amount of moves required to beat Gnu Chess on easy mode? Just to clarify, you are playing as Black, Gnu Chess is playing as White.

• Does it play with the same strength (making the same moves) on all hardware? Commented Jul 3, 2014 at 12:30
• A 2006 core 2 duo laptop and a 2013 intel i5 laptop both play exactly the same.
– Anon
Commented Jul 3, 2014 at 19:58
• White played only one move... You can't refute a correct opening ( this one is correct one, though unambitious ) with a series of forced moves. If I would have to try, I would respond with `1...d5`. Commented Jul 11, 2014 at 15:37
• @AlwaysLearningNewStuff Thank you for your comment. I am afraid you misunderstand; We are talking about a chess engine which on easy, always starts this way, and always plays the same thereafter. If you say, find a way to beat this engine in 60 moves, you can use that method on any other computer with this chess engine to beat him using the same 60 moves. I hope this clarified the puzzle for you.
– Anon
Commented Jul 12, 2014 at 5:34
• So, if I play `1...d5` it will respond the same on every computer? What about following moves? Does it play other 10+ moves the same on every computer? If so then there might be a way to solve this... Commented Jul 12, 2014 at 11:42

Here is the fastest way that I've found.

``````[Event "?"]
[Site "?"]
[Date "2014.07.12"]
[Round "?"]
[White "?"]
[Black "?"]
[FEN ""]

1. Nc3 d5 2. Nf3 d4 3. Ne4 b6 4. d3 f5 5. Ne4g5 h6 6. Nh3 g5 7. Bd2 g4 8. Nhg1 gxf3 9. Nxf3 Nc6 10. Bf4 h5 11. h3 Bh6 12. Ng5 e5 13. Bxe5 Nxe5 14. Nf3 Nxf3+ 15. gxf3 Nf6 16. Rg1 Rg8 17. Rxg8+ Nxg8 18. Bg2 Bb7 19. a4 a5 20. Kf1 Nf6 21. Qe1 Nd5 22. Rd1 Nf4 23. e4 Qe7 24. e5 O-O-O 25. Ra1 Rg8 26. Bh1 Qg5 27. Rb1 Qg1#
``````

here how I win against gnu chess version 6.2.2 as black:

1. Nf3 d5
2. d4 Nf6
3. c4 e6
4. Nc3 c6
5. e3 Nbd7
6. Bd3 dxc4
7. Bxc4 b5
8. Bd3 a6
9. O-O Bb7
10. e4 Qc7
11. dxe6 fxe6
12. Bc2 c4
13. Ng5 Nc5
14. Qf3 Bd6
15. Qh3 O-O-O
16. Re1 Kb8
17. Nf3 e5
18. Bg5 Nd3
19. Bxd3 Rxd3
20. Qh4 bxa4
21. Nxa4 Bb4
22. Bxf6 Bxe1
23. Rxe1 gxf6
24. Qxf6 Re8
25. Nc3 Rd6
26. Qg5 Rg6
27. Qe3 Rd8
28. Nd5 Bxd5
29. exd5 Rb6
30. d6 Rbxd6
31. Nxe5 Rd5
32. h3 Qc5
33. Qc3 Qd4
34. Nxc4 Qxc3
35. bxc3 Rd1
36. Kf1 Rxe1+
37. Kxe1 Rd3
38. Nb6+ Kb7
39. Na4 Rd8
40. c4 Rd4
41. Nb2 Kc5
42. f4 Rd8
43. Ke4 Rb8
44. Nd3+ Kxc4
45. f5 {White resigns} 0-1
• Why add an answer when there's already someone who shared a faster way? Welcome to our community by the way! Commented Sep 10, 2020 at 6:29