Author: Bruce Moreland
Date: 08:45:28 03/20/99
The database for this ending has been generated by others recently, but to my
knowledge nobody has posted anything about it.
The longest mate for white (the side wth the pawns) is 50 moves, but there is
also several mates in 17 for the side with the knight.
bruce
---------------
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "1-0"]
[SetUp "1"]
[FEN "4n3/2P5/8/8/1P2K3/8/7k/8 w - - 0 1"]
{
a b c d e f g h
+---+---+---+---+---+---+---+---+
8 | |///| |///| n |///| |///| 8
+---+---+---+---+---+---+---+---+
7 |///| |/P/| |///| |///| | 7
+---+---+---+---+---+---+---+---+
6 | |///| |///| |///| |///| 6
+---+---+---+---+---+---+---+---+
5 |///| |///| |///| |///| | 5
+---+---+---+---+---+---+---+---+
4 | |/P/| |///| K |///| |///| 4
+---+---+---+---+---+---+---+---+
3 |///| |///| |///| |///| | 3
+---+---+---+---+---+---+---+---+
2 | |///| |///| |///| |/k/| 2
+---+---+---+---+---+---+---+---+
1 |///| |///| |///| |///| | 1
+---+---+---+---+---+---+---+---+
a b c d e f g h
}
1. c8=N! Nc7 2. Ke5 Kg3 3. Kd6 Nb5+ 4. Kc5! Nc7 5. Kc6 Ne6 6. Kd6 Nd4 7. Kd5
Nb5 8. Nd6 Nc7+ 9. Kc6! Ne6 10. Nb5 Kg4 11. Nc7 { Kd5 } Nd4+ 12. Kd5 Ne2 13.
Ke4! Nc3+ 14. Kd3! Nd1 15. b5 { Kd4 } Nb2+ 16. Kd4! Na4 17. Na8! Kf5 18. Kc4!
Ke6 19. Kb4! Nb2 20. b6! Nd3+ 21. Kb5! Ne5 22. b7! Nd7 23. Nb6 { Kc6 } Nb8 24.
Nc8 { Kc5 } Nd7 25. Kc6 Nb8+ 26. Kb6 Kd7 27. Ka7 Kc7 28. Ne7 Nd7 29. Ng6
{ Nd5+ } Kc6 30. Ne5+ { Nf8 } Nxe5 31. b8=Q! Nd7 { Kd5 } 32. Qf4 { Qg3, Qh2,
Qb7+, Qb4, Qb3, Qb2, Qb1, Qa8+, Qc8+, Qd8, Qe8, Qg8, Qh8 } Kd5 33. Qd2+ { Ka6,
Kb7 } Ke6 34. Ka6 { Kb7 } Nf6 { Nb8+, Ne5, Nc5+, Ke7 } 35. Kb5 { Kb6 } Nd7
{ Ne4 } 36. Qc3 { Qh6+, Qd1, Kc4, Kc6, Kb4 } Nf6 { Ne5, Kd6 } 37. Kc4 Ne4
{ Kf5 } 38. Qe1 { Qe3 } Kf5 39. Kd4 Nf6 40. Qe5+ Kg6 41. Qf4 Kg7 42. Qd6 { Qf5,
Ke5 } Nh5 { Nh7, Ng8, Kf7 } 43. Ke5 Kf7 44. Qd7+ { Qh6 } Kf8 45. Kf5 Kg8 46.
Qe8+ { Qe7, Kg5 } Kh7 { Kg7 } 47. Qf7+ { Qxh5+, Kg5 } Kh8 48. Kg6 { Kg5 } Nf4+
49. Qxf4 { Kh6 } Kg8 50. Qb8# 1-0
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "0-1"]
[SetUp "1"]
[FEN "K1kn4/8/8/8/8/8/P1P b - - 0 1"]
{
a b c d e f g h
+---+---+---+---+---+---+---+---+
8 | K |///| k |/n/| |///| |///| 8
+---+---+---+---+---+---+---+---+
7 |///| |///| |///| |///| | 7
+---+---+---+---+---+---+---+---+
6 | |///| |///| |///| |///| 6
+---+---+---+---+---+---+---+---+
5 |///| |///| |///| |///| | 5
+---+---+---+---+---+---+---+---+
4 | |///| |///| |///| |///| 4
+---+---+---+---+---+---+---+---+
3 |///| |///| |///| |///| | 3
+---+---+---+---+---+---+---+---+
2 | P |///| P |///| |///| |///| 2
+---+---+---+---+---+---+---+---+
1 |///| |///| |///| |///| | 1
+---+---+---+---+---+---+---+---+
a b c d e f g h
}
1. ... Nc6! 2. a3 { c3 } Kc7! 3. a4 { c3 } Kb6 { Kc8 } 4. a5+ { c3 } Kc7! 5. a6
{ c3 } Ne5 { Nb8, Kb6, Kc8 } 6. c3 { Ka7 } Nc4 { Nc6, Nd7 } 7. Ka7 Nb6 8. c4
Nd7 9. Ka8 Kb6 10. c5+ Kc6! 11. Ka7 Kc7! 12. Ka8 Ne5 13. Ka7 Nc6+ 14. Ka8 Kc8
15. a7 Ne5 { Na5, Ne7, Nd4, Nb4, Nd8 } 16. c6 Nc4! 17. c7 Nb6#! 0-1
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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