5

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.

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Rewan Demontay
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Anon
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    Does it play with the same strength (making the same moves) on all hardware? – Dag Oskar Madsen Jul 03 '14 at 12:30
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    A 2006 core 2 duo laptop and a 2013 intel i5 laptop both play exactly the same. – Anon Jul 03 '14 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`. – AlwaysLearningNewStuff Jul 11 '14 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 Jul 12 '14 at 05:34
  • 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... – AlwaysLearningNewStuff Jul 12 '14 at 11:42
  • Can you give us a download link? The one I found always starts with `1.e4`, so I can't help you now... – AlwaysLearningNewStuff Jul 22 '14 at 14:34
  • @AlwaysLearningNewStuff I am on ubuntu, and I am just using the one from the repos. akiva@Akiva-ThinkPad:~/Music/Podcasts$ gnuchess --version GNU Chess 6.1.1 – Anon Jul 22 '14 at 22:06

2 Answers2

2

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#
Rewan Demontay
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Anon
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-1

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
Ottó Kuruc
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    Why add an answer when there's already someone who shared a faster way? Welcome to our community by the way! – David Sep 10 '20 at 06:29