Author: Uri Blass
Date: 02:37:31 09/19/04
Go up one level in this thread
On September 18, 2004 at 21:07:32, Timothy J. Frohlick wrote:
>
>
>Heinz 57 problem.
>
>White to move and mate in 57.
>
>
>1. Qa2xf7+ Qg7xf7 2. Qf2xf7+ Qh7xf7 3. Qd2xd7+ Nb8xd7 4. Qb2xh8 Qc7xh2 5. Rh1xh2
>Qb7xg2 6. Rh2xg2 Qa7xa1 7. Qh8xg8 Qa1-a5+ 8. Nb1-c3 Nd7-e5 9. Qg8xf7+ Ne5xf7 10.
>Qd1xd8+ Qa5xd8 11. Ng1-f3 Ra8-a5 12. Nc3-e4 Bc8-e6 13. Bc1-b2 Qe7-b4+ 14. Nf3-d2
>Qb4-b6 15. Ne4-f6+ Ke8-e7 16. Rg2-g6 Qd8-d6 17. Bf1-h3 Nf7-d8 18. Bb2-c3 Qb6-a6
>19. Nf6-g8+ Ke7-d7 20. Bc3xa5 Qa6xa5 21. Bh3xe6+ Nd8xe6 22. Qe2xe6+ Qd6xe6+ 23.
>Rg6xe6 Kd7xe6 24. Qc2-g6+ Ke6-d7 25. Qg6-f7+ Kd7-c6 26. Qf7-e8+ Kc6-b6 27.
>Qe8-d8+ Kb6-b5 28. Qd8xf8 Qa5-a1+ 29. Ke1-e2 Qa1-e5+ 30. Ke2-d1 Qe5-h5+ 31.
>Nd2-f3 Qh5-d5+ 32. Kd1-e1 Qd5-e4+ 33. Ke1-f2 Qe4-c2+ 34. Kf2-g3 Qc2-c7+ 35.
>Kg3-h4 Qc7-h7+ 36. Kh4-g5 Qh7-e4 37. Ng8-e7 Kb5-a4 38. Qf8-f7 Qe4-e3+ 39. Kg5-h5
>Qe3-d3 40. Ne7-c6 Qd3-b5+ 41. Nf3-e5 Qb5-e2+ 42. Kh5-h6 Qe2-h2+ 43. Kh6-g7
>Qh2-g1+ 44. Kg7-f8 Qg1-c5+ 45. Kf8-e8 Ka4-a3 46. Qf7-f3+ Ka3-a2 47. Ne5-d3
>Qc5-c3 48. Qf3-d5+ Ka2-a1 49. Qd5-h1+ Ka1-a2 50. Nc6-b4+ Ka2-b3 51. Qh1-b1+
>Kb3-a4 52. Qb1-a2+ Qc3-a3 53. Qa2-c4 Qa3xd3 54. Nb4xd3+ Ka4-a5 55. Qc4-b4+
>Ka5-a6 56. Nd3-c5+ Ka6-a7 57. Qb4-b7#
>1-0
I believe that 16.Rg2-g6 is an error and it is possible that both sides had
better moves earlier
16.Ba3+ suggested by Movei seems to mate faster
possible computer line when the last moves were suggested by yace:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "rnbqkbnr/qqqqqqqq/8/8/8/8/QQQQQQQQ/RNBQKBNR w KQkq - 0 1"]
[PlyCount "63"]
{-------------- r n b q k b n r q q q q q q q q . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . Q Q Q Q Q Q Q Q R N B Q K B N R white to play
--------------} 1. Qaxf7+ Qgxf7 2. Qxf7+ Qhxf7 3. Qxd7+ Nxd7 4. Qbxh8 Qxh2 5.
Rxh2 Qxg2 6. Rxg2 Qxa1 7. Qxg8 Qaa5+ 8. Nc3 Ne5 9. Qxf7+ Nxf7 10. Qxd8+ Qaxd8
11. Nf3 Ra5 12. Ne4 Be6 13. Bb2 Qb4+ 14. Nfd2 Qbb6 15. Nf6+ Ke7 16. Ba3+ Rxa3
17. Ng8+ Ke8 18. Qb5+ Qxb5 19. Bxb5+ Bd7 20. Qe4+ Qe7 21. Nxe7 Ra1+ 22. Kf2
Bxb5 23. Nd5+ Kd8 24. Rg8 Kd7 25. Rxf8 Nd6 26. Rd8+ Kc6 27. Qe5 Ne4+ 28. Qxe4
Rf1+ 29. Nxf1 Bxf1 30. Kxf1 Kb7 31. Qb4+ Ka7 32. Qb6# 1-0
Uri
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