Hi,
[D]8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - -
Mate in 47
Alexey Khanyan
Grigory Popov
SuperProblem 2014
Recommended Special prize
Have fun!
Mihcael Diosi
http://www.playwitharena.com
Mate in 47
Moderators: hgm, Rebel, chrisw
-
Ajedrecista
- Posts: 1966
- Joined: Wed Jul 13, 2011 9:04 pm
- Location: Madrid, Spain.
Re: Mate in 47.
Hello Michael:
[pgn][Event "www.superproblem.ru (C004)"]
[Site ""]
[Date "2014.02.04"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - - 0 1"]
[Termination "normal"]
[PlyCount "93"]
1. Kc6 Bb4 2. Kb5 Ba3 3. Kxa4 Bb4 4. Kb5 Ba3 5. Ka5 Bb4+ 6. Ka4 f6 7. Kb5
Ba3 8. Ka5 Bb4+ 9. Ka4 f5 10. Kb5 Ba3 11. Ka5 Bb4+ 12. Ka4 f4 13. Kb5 Ba3
14. Ka5 Bb4+ 15. Ka4 f3 16. Kb5 Ba3 17. Ka5 Bb4+ 18. Ka4 g6 19. Kb5 Ba3 20.
Ka5 Bb4+ 21. Ka4 g5 22. Kb5 Ba3 23. Ka5 Bb4+ 24. Ka4 g4 25. Kb5 Ba3 26. Ka5
Bb4+ 27. Ka4 g3 28. Kb5 Ba3 29. Ka5 Bb4+ 30. Ka4 h6 31. Kb5 Ba3 32. Ka5
Bb4+ 33. Ka4 h5 34. Kb5 Ba3 35. Ka5 Bb4+ 36. Ka4 h4 37. Kb5 Ba3 38. Ka5
Bb4+ 39. Ka4 h3 40. Kb5 Ba3 41. Ka5 Bb4+ 42. Ka4 h2 43. Kb5 Ba3 44. Ka5
Bb4+ 45. Ka4 Ba3 46. Kxa3 Qxd1 47. Rxd1# 1-0[/pgn]
Houdini 3 (mate search = 47) and SF 6 see the checkmate around 14 or 15 moves before the last move. Houdini also reports 0.00 score from the very first move in few time, I would say that less than two minutes in an Intel Pentium D930 (3 GHz) from year 2006, using 512 MB of hash and 5-man Nalimov EGTB.
Regards from Spain.
Ajedrecista.
According to YACPDB, the solution is:Michael Diosi wrote:Hi,
[D]8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - -
Mate in 47
Alexey Khanyan
Grigory Popov
SuperProblem 2014
Recommended Special prize
Have fun!
Mihcael Diosi
http://www.playwitharena.com
[pgn][Event "www.superproblem.ru (C004)"]
[Site ""]
[Date "2014.02.04"]
[Round "?"]
[White ""]
[Black ""]
[Result "1-0"]
[SetUp "1"]
[FEN "8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - - 0 1"]
[Termination "normal"]
[PlyCount "93"]
1. Kc6 Bb4 2. Kb5 Ba3 3. Kxa4 Bb4 4. Kb5 Ba3 5. Ka5 Bb4+ 6. Ka4 f6 7. Kb5
Ba3 8. Ka5 Bb4+ 9. Ka4 f5 10. Kb5 Ba3 11. Ka5 Bb4+ 12. Ka4 f4 13. Kb5 Ba3
14. Ka5 Bb4+ 15. Ka4 f3 16. Kb5 Ba3 17. Ka5 Bb4+ 18. Ka4 g6 19. Kb5 Ba3 20.
Ka5 Bb4+ 21. Ka4 g5 22. Kb5 Ba3 23. Ka5 Bb4+ 24. Ka4 g4 25. Kb5 Ba3 26. Ka5
Bb4+ 27. Ka4 g3 28. Kb5 Ba3 29. Ka5 Bb4+ 30. Ka4 h6 31. Kb5 Ba3 32. Ka5
Bb4+ 33. Ka4 h5 34. Kb5 Ba3 35. Ka5 Bb4+ 36. Ka4 h4 37. Kb5 Ba3 38. Ka5
Bb4+ 39. Ka4 h3 40. Kb5 Ba3 41. Ka5 Bb4+ 42. Ka4 h2 43. Kb5 Ba3 44. Ka5
Bb4+ 45. Ka4 Ba3 46. Kxa3 Qxd1 47. Rxd1# 1-0[/pgn]
Houdini 3 (mate search = 47) and SF 6 see the checkmate around 14 or 15 moves before the last move. Houdini also reports 0.00 score from the very first move in few time, I would say that less than two minutes in an Intel Pentium D930 (3 GHz) from year 2006, using 512 MB of hash and 5-man Nalimov EGTB.
Regards from Spain.
Ajedrecista.
-
peter
- Posts: 3185
- Joined: Sat Feb 16, 2008 7:38 am
- Full name: Peter Martan
Re: Mate in 47
Hi!
Nullmove off:
8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - - 0 1
Analysis by Komodo 9.3 64-bit:
1.Kc6 Lb4 2.Kb5 La3 3.Kxa4 Lb4 4.Kb5 La3 5.Ka5 Lb4+ 6.Ka4 g6 7.Kb5 La3 8.Ka5 Lb4+ 9.Ka4 g5 10.Kb5 La3 11.Ka5 Lb4+ 12.Ka4 h6 13.Kb5 La3 14.Kb6 Lb4 15.Ka6 La3 16.Kb5 Lb4 17.Ka4 g4 18.Kb5 La3 19.Ka5 Lb4+ 20.Ka4 g3 21.Kb5 La3 22.Ka6 Lb4 23.Kb6 La3
+- (#59) Tiefe: 42 00:05:53 10368MN
Don't want to wait till number of moves to mate get lower, exact solution would take very long or wouldn't be got without Backward at all probably
Nullmove off:
8/3K1ppp/8/2p5/n1B5/b1p5/1pP1rpp1/1R1Rqkrb w - - 0 1
Analysis by Komodo 9.3 64-bit:
1.Kc6 Lb4 2.Kb5 La3 3.Kxa4 Lb4 4.Kb5 La3 5.Ka5 Lb4+ 6.Ka4 g6 7.Kb5 La3 8.Ka5 Lb4+ 9.Ka4 g5 10.Kb5 La3 11.Ka5 Lb4+ 12.Ka4 h6 13.Kb5 La3 14.Kb6 Lb4 15.Ka6 La3 16.Kb5 Lb4 17.Ka4 g4 18.Kb5 La3 19.Ka5 Lb4+ 20.Ka4 g3 21.Kb5 La3 22.Ka6 Lb4 23.Kb6 La3
+- (#59) Tiefe: 42 00:05:53 10368MN
Don't want to wait till number of moves to mate get lower, exact solution would take very long or wouldn't be got without Backward at all probably
Peter.