Scratch Chess Engine Tournament - February 2018

ArnoHu

Scratch Chess Engine Tournament - February 2018

Participants

Final Result

1. Game of Kings  - 1 1 1 1  4.0
2. Bonsai         0 - 1 1 1  3.0
3. Archimedes     0 0 - 1 1  2.0
4. The Turk       0 0 0 - 1  1.0
5. Midecah        0 0 0 0 -  0.0

Game Results

Game #1: Game of Kings (white) vs. Midecah Chess (black). 1 - 0 (Game of Kings wins in 14 moves: https://lichess.org/dUZqeVya).
Game #2: Archimedes Chess (white) vs. The Turk (black). 1 - 0 (Archimedes wins in 41 moves: https://lichess.org/U30GnK6J).
Game #3: Bonsai (white) vs. Midecah Chess (black). 1 - 0 (Bonsai wins in 34 moves: https://lichess.org/Gi364gK4).
Game #4: Game of Kings (white) vs. The Turk (black). 1 - 0 (Game of Kings wins in 17 moves: https://lichess.org/Zf443NNP).
Game #5: Bonsai (white) vs. Archimedes Chess (black). 1 - 0 (Bonsai wins in 50 moves: https://lichess.org/uzfsfdND).
Game #6: The Turk (white) vs. Midecah Chess (black). 1 - 0 (Midecah DQ due to disappearing piece at move 13: https://lichess.org/VPRxEUah).
Game #7: Game of Kings (white) vs. Archimedes Chess (black). 1 - 0 (Game of Kings wins in 44 moves: https://lichess.org/ZBx8aS3n).
Game #8: Bonsai (white) vs. The Turk (black). 1 - 0 (Bonsai wins in 34 moves: https://lichess.org/gcuRYj6G).
Game #9: Archimedes Chess (white) vs. Midecah Chess (black). 1 - 0 (Midecah DQ due to invalid move 12: https://lichess.org/PekOrbSF).
Game #10: Game of Kings (white) vs. Bonsai (black). 1 - 0 (Game of Kings wins in 48 moves: https://lichess.org/OpuRXSmE).

Previous Tournaments

December 2017 Results

Last edited by ArnoHu (May 27, 2018 03:39:58)

ArnoHu

Game #1: Game of Kings (white) vs. Midecah Chess (black)

1. d4 g6 { A40 Modern Defense } 2. Bf4 Bg7 3. e3 Nf6 4. Nf3 e6 5. Bb5 Rg8 6. O-O Bf8 7. Nc3 h5 8. h3 Nh7 9. Ne5 f5 10. Nxg6 Rxg6 11. Qxh5 Nf6 12. Qxg6+ Ke7 13. Bg5 d6 14. Qxf6# { White wins by checkmate. } 1-0

https://lichess.org/dUZqeVya

Last edited by ArnoHu (May 27, 2018 03:40:13)

ArnoHu

Game #2: Archimedes Chess (white) vs. The Turk (black)

1. Nc3 { A00 Van Geet Opening } d6 2. Nb5 Bg4 3. a3 e5 4. h4 Nd7 5. g3 Be7 6. Bg2 a6 7. Bxb7 Rb8 8. Bxa6 Rb6 9. f3 Bh5 10. g4 Bg6 11. h5 Bh4+ 12. Kf1 Bxc2 13. Qxc2 Rxa6 14. Nxc7+ Ke7 15. Nxa6 Bg5 16. Qf5 Kf8 17. Nh3 Nh6 18. Qxg5 Qc8 19. Nb4 f6 20. Qh4 g5 21. hxg6 hxg6 22. Ng5 fxg5 23. Qxg5 Nf7 24. Rxh8+ Nxh8 25. Qh6+ Kg8 26. Rb1 Nf7 27. Qxg6+ Kf8 28. Qh7 Nf6 29. Qg6 Ke7 30. Nc2 Qc7 31. Ra1 Qc8 32. Nb4 Nh8 33. Qg5 Nf7 34. Nd5+ Ke6 35. Qf5+ Kxd5 36. Qxc8 Ng5 37. Qf5 Nfh7 38. f4 Nf6 39. Qxg5 Nh7 40. Qg8+ Ke4 41. Qc4# { White wins by checkmate. } 1-0

https://lichess.org/U30GnK6J

Last edited by ArnoHu (Feb. 7, 2018 21:10:22)

ArnoHu

Game #3: Bonsai (white) vs. Midecah Chess (black)

1. e4 a5 { B00 Ware Defense } 2. Nc3 g6 3. d4 b6 4. Nf3 e6 5. Bg5 Qxg5 6. Nxg5 h6 7. Nf3 Rh7 8. Nb5 c6 9. Nc7+ Kd8 10. Nxa8 h5 11. Nxb6 Bb7 12. Ng5 Rh6 13. Nxf7+ Kc7 14. Nxh6 Kxb6 15. Nxg8 h4 16. Qf3 Bg7 17. Qf4 Na6 18. Nf6 Bxf6 19. Qxf6 g5 20. Qd8+ Ka7 21. Bxa6 Kxa6 22. Qxd7 Ba8 23. Qxe6 a4 24. Qg8 Bb7 25. Qxg5 Ka7 26. Qa5+ Kb8 27. Qxa4 c5 28. dxc5 Bxe4 29. Qxe4 Kc7 30. Qxh4 Kc6 31. Qc4 Kd7 32. Rd1+ Kc8 33. Qf7 Kb8 34. Rd8# { White wins by checkmate. } 1-0

https://lichess.org/Gi364gK4

ArnoHu

Game #4: Game of Kings (white) vs. The Turk (black)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Bc5 { C70 Ruy Lopez: Morphy Defense, Classical Defense Deferred } 5. Bxc6 dxc6 6. Nxe5 Be6 7. O-O Ne7 8. Nd3 Bc4 9. Nxc5 Qd6 10. Nxb7 Qb4 11. d3 Be6 12. Qh5 Qxb7 13. Qg5 Kf8 14. Nc3 Ra7 15. Be3 Qxb2 16. Bxa7 Nc8 17. Qd8# { White wins by checkmate. } 1-0

https://lichess.org/Zf443NNP

ArnoHu

Game #5: Bonsai (white) vs. Archimedes Chess (black)

1. d4 { A40 Queen's Pawn } h6 2. Nc3 a5 3. e4 h5 4. Nf3 e6 5. Bg5 f6 6. Bf4 Bb4 7. a3 Bf8 8. Nb5 Nc6 9. Nxc7+ Ke7 10. Nxa8 a4 11. Bc7 Qe8 12. c4 Na7 13. Qxa4 Nc6 14. Qc2 g6 15. Bf4 h4 16. Nc7 Qf7 17. O-O-O Rh5 18. Rd2 Bg7 19. Be2 Kd8 20. Ne1 Ra5 21. Nb5 e5 22. Nd6 Qf8 23. dxe5 Nxe5 24. Qb3 Rc5 25. Nc2 Nxc4 26. Bxc4 b5 27. Bxg8 Ba6 28. Be3 Rc7 29. Bb6 Bh6 30. Bxc7+ Kxc7 31. Ne3 Bxe3 32. fxe3 Kd8 33. Bf7 h3 34. gxh3 f5 35. Bxg6 f4 36. exf4 b4 37. Nf7+ Kc8 38. axb4 Kb8 39. Rg1 Qe8 40. Nd6 Qf8 41. b5 Bb7 42. Bf7 Ba8 43. Rg8 Qxg8 44. Bxg8 Kc7 45. Kc2 Kd8 46. Qa4 Bxe4+ 47. Nxe4 Kc7 48. Qa7+ Kc8 49. Rd6 Kd8 50. Qxd7# { White wins by checkmate. } 1-0

https://lichess.org/uzfsfdND

ArnoHu

Game #6: The Turk (white) vs. Midecah Chess (black)

1. d4 d5 2. Bf4 { D00 Queen's Pawn Game: Mason Attack } f5 3. e3 g6 4. Be5 Bg7 5. Bxg7 Kf7 6. Bxh8 b6 7. Bd3 Qd7 8. Ne2 h6 9. Nd2 h5 10. Rg1 h4 11. Rf1 e6 12. Rg1 c6 13. Be5 { White wins by DQ. } 1-0

At this point black's b8 knight disappeared => DQ

https://lichess.org/VPRxEUah

ArnoHu

Game #7: Game of Kings (white) vs. Archimedes Chess (black)

1. e4 h6 { B00 Carr Defense } 2. Bc4 Nf6 3. Nc3 Nc6 4. d4 Rg8 5. Nf3 Na5 6. Bd3 Nc6 7. e5 Nh5 8. g4 Nb4 9. gxh5 e6 10. Bh7 Rh8 11. Be4 f5 12. exf6 Qxf6 13. Bg6+ Kd8 14. Ne4 Nxc2+ 15. Kf1 Ne3+ 16. fxe3 Qe7 17. Ne5 d5 18. Nf7+ Kd7 19. Nc5+ Kc6 20. Ne5+ Kd6 21. Nxb7+ Bxb7 22. Nf7+ Kd7 23. Nxh8 Qf6+ 24. Ke2 Ba6+ 25. Bd3 Bxd3+ 26. Qxd3 c6 27. Ng6 Bd6 28. e4 dxe4 29. Qxe4 Rc8 30. Rf1 Qd8 31. Rf7+ Be7 32. Rxg7 Kc7 33. Nxe7 Qd7 34. Qf4+ Kd8 35. Qf6 Kc7 36. Nxc8 Qxg7 37. Qxg7+ Kxc8 38. Qxa7 e5 39. dxe5 c5 40. Qxc5+ Kd8 41. Ke1 Ke8 42. e6 Kd8 43. Bxh6 Ke8 44. Qf8# { White wins by checkmate. } 1-0

https://lichess.org/ZBx8aS3n

ArnoHu

Game #8: Bonsai (white) vs. The Turk (black)

1. e4 c5 2. Nc3 Nc6 { B25 Sicilian Defense: Closed Variation, Traditional } 3. Nf3 Nf6 4. e5 Nh5 5. Bc4 d5 6. Nxd5 Be6 7. Ne3 Ng3 8. hxg3 Bxc4 9. Nxc4 Qd5 10. Ne3 Qe4 11. Rh4 Qg6 12. c3 Qd3 13. Qb3 Rb8 14. Qd5 Qxd5 15. Nxd5 e6 16. Nc7+ Kd7 17. Nb5 Be7 18. Rh5 Rbc8 19. d4 cxd4 20. cxd4 Nxd4 21. Nbxd4 Bb4+ 22. Bd2 g6 23. Rh6 Bc5 24. Rc1 Bxd4 25. Nxd4 Rxc1+ 26. Bxc1 b6 27. Bf4 a6 28. Nf3 Kc8 29. Ng5 Kb7 30. Nxf7 Rf8 31. Rxh7 Kc8 32. Nd6+ Kd8 33. Bg5+ Rf6 34. Bxf6# { White wins by checkmate. } 1-0

https://lichess.org/gcuRYj6G

Last edited by ArnoHu (Feb. 10, 2018 11:44:09)

Samueldora

ArnoHu wrote:
Game #8: Bonsai (white) vs. The Turk (black)

1. e4 h6 { B00 Carr Defense } 2. Bc4 Nf6 3. Nc3 Nc6 4. d4 Rg8 5. Nf3 Na5 6. Bd3 Nc6 7. e5 Nh5 8. g4 Nb4 9. gxh5 e6 10. Bh7 Rh8 11. Be4 f5 12. exf6 Qxf6 13. Bg6+ Kd8 14. Ne4 Nxc2+ 15. Kf1 Ne3+ 16. fxe3 Qe7 17. Ne5 d5 18. Nf7+ Kd7 19. Nc5+ Kc6 20. Ne5+ Kd6 21. Nxb7+ Bxb7 22. Nf7+ Kd7 23. Nxh8 Qf6+ 24. Ke2 Ba6+ 25. Bd3 Bxd3+ 26. Qxd3 c6 27. Ng6 Bd6 28. e4 dxe4 29. Qxe4 Rc8 30. Rf1 Qd8 31. Rf7+ Be7 32. Rxg7 Kc7 33. Nxe7 Qd7 34. Qf4+ Kd8 35. Qf6 Kc7 36. Nxc8 Qxg7 37. Qxg7+ Kxc8 38. Qxa7 e5 39. dxe5 c5 40. Qxc5+ Kd8 41. Ke1 Ke8 42. e6 Kd8 43. Bxh6 Ke8 44. Qf8# { White wins by checkmate. } 1-0

https://lichess.org/gcuRYj6G

This protocol seems to be GoK-Archimedes. The Lichess-Link above is different (Sicilian, 34 moves).

ArnoHu

Samueldora wrote:
ArnoHu wrote:
Game #8: Bonsai (white) vs. The Turk (black)

1. e4 h6 { B00 Carr Defense } 2. Bc4 Nf6 3. Nc3 Nc6 4. d4 Rg8 5. Nf3 Na5 6. Bd3 Nc6 7. e5 Nh5 8. g4 Nb4 9. gxh5 e6 10. Bh7 Rh8 11. Be4 f5 12. exf6 Qxf6 13. Bg6+ Kd8 14. Ne4 Nxc2+ 15. Kf1 Ne3+ 16. fxe3 Qe7 17. Ne5 d5 18. Nf7+ Kd7 19. Nc5+ Kc6 20. Ne5+ Kd6 21. Nxb7+ Bxb7 22. Nf7+ Kd7 23. Nxh8 Qf6+ 24. Ke2 Ba6+ 25. Bd3 Bxd3+ 26. Qxd3 c6 27. Ng6 Bd6 28. e4 dxe4 29. Qxe4 Rc8 30. Rf1 Qd8 31. Rf7+ Be7 32. Rxg7 Kc7 33. Nxe7 Qd7 34. Qf4+ Kd8 35. Qf6 Kc7 36. Nxc8 Qxg7 37. Qxg7+ Kxc8 38. Qxa7 e5 39. dxe5 c5 40. Qxc5+ Kd8 41. Ke1 Ke8 42. e6 Kd8 43. Bxh6 Ke8 44. Qf8# { White wins by checkmate. } 1-0

https://lichess.org/gcuRYj6G

This protocol seems to be GoK-Archimedes. The Lichess-Link above is different (Sicilian, 34 moves).

Thanks, fixed copy&paste mistake

ArnoHu

Game #9: Archimedes Chess (white) vs. Midecah Chess (black)

1. Nh3 f5 2. a3 g6 3. a4 d5 4. Nf4 d4 5. h4 h6 6. Nxg6 Rh7 7. Na3 Bg7 8. Nb5 c5 9. Rg1 a5 10. h5 e6 11. d3 Qb6 12. Nh4 { White wins by DQ. } 1-0

At this point black made an invalid move (Qb6b7) => DQ

https://lichess.org/PekOrbSF

Last edited by ArnoHu (Feb. 10, 2018 17:45:12)

ArnoHu

Game #10: Game of Kings (white) vs. Bonsai (black)

1. d4 Nf6 2. c4 c5 { A56 Benoni Defense } 3. Bf4 cxd4 4. Nf3 d6 5. b3 e5 6. Bg5 Bg4 7. h3 Bxf3 8. exf3 Nc6 9. Bd3 a5 10. O-O Rc8 11. Bf5 Rc7 12. Re1 h6 13. Bh4 g5 14. Bg3 Bg7 15. Na3 Ne7 16. Bd3 O-O 17. Nb5 Rc8 18. Qe2 Re8 19. h4 Nh5 20. Bh2 gxh4 21. Qe4 Nc6 22. Qg4 Nf6 23. Qxh4 Nb4 24. Bf5 Rc6 25. a3 Na6 26. f4 Nc5 27. fxe5 dxe5 28. Bxe5 Nxb3 29. Rab1 d3 30. Bc3 Rxe1+ 31. Rxe1 d2 32. Rd1 Rc5 33. Bc2 a4 34. Bxb3 axb3 35. Rxd2 Qe8 36. Rd6 Rxb5 37. cxb5 b2 38. Bxb2 Qe1+ 39. Kh2 Ne4 40. Rd8+ Kh7 41. Qe7 Qxf2 42. Qxe4+ f5 43. Bd4 Be5+ 44. Qxe5 Qh4+ 45. Kg1 Qg4 46. Rh8+ Kg6 47. Qf6+ Kh5 48. Rxh6# { White wins by checkmate. } 1-0

GoK at level Difficult, Bonsai at Blue Belt.

https://lichess.org/OpuRXSmE

Samueldora

Congratulations to Gok and to you, ArnoHu! Very interesting final match!

Grijfland

Arno, a nice and satisfying result !

Last edited by Grijfland (Feb. 20, 2018 12:22:23)

project124

It's as though GoK is unbeatable against other scratch engines. How is it against the level 1 stock-fish?

project124

How do you play 2 engines together? My current method is to have the two engines run, playing mirroring the moves on both processes. This can be tedious though.

ArnoHu

project124 wrote:
It's as though GoK is unbeatable against other scratch engines. How is it against the level 1 stock-fish?

I let GoK play a game against Stockfish level 5, which GoK won (it was a very close game). And another Scratcher increased GoK's default search depth, ran it on the fast Sulfurous runtime, and reported that GoK won against Stockfish level 6. I personally think that on a very fast system and on Sulfurous, it performs at around Stockfish level 5.

Scratch Chess - Game of Kings ONLINE

ArnoHu

project124 wrote:
How do you play 2 engines together? My current method is to have the two engines run, playing mirroring the moves on both processes. This can be tedious though.

Yes, that's also how I did it. And it can get very tricky when you have two engines that only play black, like Midecah and The Turk. I had to load an inverted FEN board into The Turk for this to work.

Scratch Chess - Game of Kings ONLINE

ArnoHu

project124 wrote:
It's as though GoK is unbeatable against other scratch engines. How is it against the level 1 stock-fish?

Actually Bonsai won the first tournament a year ago, GoK then went on to win the next two tournaments.

Scratch Chess - Game of Kings ONLINE

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