Author: James Robertson
Date: 19:02:56 03/07/99
Go up one level in this thread
On March 07, 1999 at 17:18:56, Bruce Moreland wrote:
Kasparov has had two endings trying to prevent an enemy knight from capturing a
pawn in two games in three days. Interesting.
James
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | |///| |///| |///| |/k/| 6
> +---+---+---+---+---+---+---+---+
>5 |///| N |/n/| |/K/| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |///| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>This is the situation at the start of the ending. It represents best play
>from the root. Kasparov found 61. Nd4!, which was the only winning move.
>
>1. Kd4! Nb3+ 2. Kd5 { Kc4 } Kg5 { Kg7, Kg6 } 3. Nd4! Na5 4. a4 Kf6 5. Kc5 Nb7+
>6. Kc6 Na5+ 7. Kb5 Nb7 8. Nb3 Ke5 9. Kb6 Nd6 10. Kc6 Nc4 11. Nd2 Ne3 12. a5
>{ Nf3+ } Nd5 13. Nf3+ Ke4 14. Ne1 Nb4+ { Ne7+ } 15. Kb5 Nd5 16. Nc2 Ne7 { Nc7+,
>Ke5, Kf4 } 17. a6 { Kc5 } Nc8 18. Kc5 Na7 { Kd3, Kf3, Kf5, Ke5, Kf4 } 19. Na3
>{ Nd4 } Nc8 { Ke5 } 20. Nc4 { Nb5, Kc6 } Na7 21. Kb6 Nc8+ 22. Kb7 Ne7 23. a7
>Nd5 { Kd3, Kd5, Kd4 } 24. a8=Q { Kc6 } Nb4 { Nc3, Kd4 } 25. Ne5 { Nd6+, Qa7,
>Qa5, Qa4, Qa3, Qa1, Qb8, Qc8, Qd8, Qe8+, Qf8, Qg8, Qh8, Kb6+ } Nd5 { Nc2,
>Kxe5 } 26. Kc6 Nf6 { Nc3, Ne7+, Kxe5, Kd4 } 27. Kd6+ Kd4 28. Qa1+ Ke3 { Ke4 }
>29. Qe1+ Kd4 30. Qd2+ Ke4 31. Qd3+ { Ke6 } Kf4 32. Ke6 Nh5 { Nd5, Nh7, Nd7,
>Ng4, Ne4, Ng8, Ne8, Kg5 } 33. Qf3+ Kg5 34. Qg4+ { Qf5+ } Kh6 35. Qg6# 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |///| |///| |/k/| 6
> +---+---+---+---+---+---+---+---+
>5 |///| N |///| |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |/K/| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>This is the position after Adams' mistake, 61. ... Na6. It shaved many moves
>off of the mate distance, so it should be regarded as an error, and was by far
>the worst mistake in the ending.
>
>1. Kc4 Nb8 { Kg5, Kg7, Kg6 } 2. a4 { Nd4 } Na6 { Kg5, Kg7, Kg6 } 3. a5 { Nd4 }
>Kg5 { Kg7, Kg6 } 4. Nd4 Nc7 { Kf4, Kf6 } 5. Kc5 Na6+ { Kf4, Kf6 } 6. Kb6 Nb4 7.
>Nb5 { Nc6 } Kf6 8. Nc3 Ke5 9. Kb5 Nd3 { Nc2 } 10. a6 Kd4 11. Na4 Nf4 12. a7 Nd5
>{ Ne6 } 13. Nb6 { Kc6 } Nc3+ { Nc7+ } 14. Kc6 Ne2 { Ne4, Nd1, Nb1, Ke5, Kd3,
>Ke4 } 15. a8=Q Nf4 { Ke3, Kd3, Ke4 } 16. Nd5 { Nc4, Qa4+, Qa3, Qe8, Qg8, Kd6 }
>Nxd5 { Ng6, Ne6 } 17. Qd8 Ke5 { Ke4 } 18. Qxd5+ Kf4 19. Qd3 { Kc5, Kd6 } Ke5
>{ Kg5, Kg4 } 20. Qf3 { Kd7 } Kd4 21. Qe2 Kc3 22. Kc5 Kb3 23. Qd2 Ka3 24. Kc4
>Ka4 25. Qb4# { Qa2# } 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |///| |///| |/k/| 6
> +---+---+---+---+---+---+---+---+
>5 |///| N |///| K |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |///| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>The position after Kasparov's minor mistake, 62. Kd5, which was sub-optimal by
>one move.
>
>1. ... Kg5 2. Nd4 { Kd6 } Kf4 3. Nc2 Nc7+ { Nb8, Kf3, Kf5 } 4. Kc6 Ne6 5. a4
>Nd8+ { Ke5 } 6. Kc7 { Kb6 } Ne6+ 7. Kb6 Nf8 { Ke5, Kf5, Ke4 } 8. a5 Nd7+ 9. Kb5
>Nb8 10. Nd4 { Nb4 } Ke3 { Kg3, Kg5, Ke4, Kg4 } 11. Nc6 Nd7 12. a6 Nf6 { Nf8 }
>13. a7 { Ne7, Nb4 } Nd5 { Ne8 } 14. Nb4 Nc3+ { Nc7+ } 15. Kc4 { Kc6 } Ne4
>{ Na4, Nb1 } 16. a8=Q { Nd5+, Nc2+ } Nd2+ 17. Kd5 Nf1 { Kf2, Kf4, Ke2, Kf3 }
>18. Nc2+ { Nc6, Qc6, Qa7+, Qa6, Qa3+, Qa1, Qc8, Qd8, Qe8+, Qf8, Qg8, Qh8, Ke5 }
>Ke2 19. Nd4+ { Qc6, Qa7, Qa6+, Qa3, Qa1, Qb8, Qc8, Qe8+, Qf8, Qg8, Qh8, Kd4,
>Ke5 } Ke1 { Ke3, Kf2 } 20. Qc6 { Qa6, Qa3, Qa2, Qe8+, Qf8, Ke4, Ke6, Kd6, Kc5,
>Ke5 } Nd2 { Ne3+, Kd2, Kf2 } 21. Qc3 { Qc2, Qc1+, Ke5 } Kf2 22. Qxd2+ Kg3 23.
>Ke4 { Ke5 } Kh4 { Kg4 } 24. Nf3+ { Qg2, Kf4 } Kg3 { Kh3, Kg4 } 25. Qh2+ Kg4 26.
>Qh4# 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |///| |///| k |///| 6
> +---+---+---+---+---+---+---+---+
>5 |///| N |///| K |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |///| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>Adams' 62. ... Kg6 was also slightly sub-optimal. Kasparov found the best
>move, 63. Nd4. Adams spent the rest of the game trying to get his king in
>front of the pawn, rather than admit the game is completely lost and try to
>stave off mate for the longest time. This decision can't be faulted, of
>course.
>
>1. Nd4 Kg5 2. Nb3 { Ne6+, Kc6 } Nc7+ 3. Kc6 Ne6 4. a4 Nf4 { Nd8+, Kf6, Kf5 } 5.
>a5 Nd3 6. Kb5 Nf4 { Kf6, Kf5 } 7. a6 Nd5 { Ne6, Kf6, Kf5 } 8. a7 Kf4 { Kf6,
>Kf5 } 9. Kc6 { Kc5 } Nb4+ { Ne7+, Ke5 } 10. Kd6 Na2 11. a8=Q Nc3 12. Qc6 { Qa1,
>Qb8, Qf8+, Qh8 } Ne2 { Ne4+ } 13. Qg2 { Qh1, Qc5, Qc4+, Qc2, Qb6, Kd5 } Ng3 14.
>Qf2+ Kg4 15. Ke5 Nh1 { Nh5 } 16. Qg1+ { Qf4+, Qg2+ } Ng3 17. Nd2 Kh4 18. Ne4
>Ne2 { Nxe4, Nh1, Nf1, Nh5, Kh5 } 19. Qg2 Ng1 { Nc1, Ng3, Nc3, Nf4, Nd4 } 20.
>Qxg1 { Qg3+, Qg5+, Kf5 } Kh3 { Kh5 } 21. Qg3# 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |///| |///| k |///| 6
> +---+---+---+---+---+---+---+---+
>5 |///| |///| K |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |/N/| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>The best move was once again 63. ... Kg5, but Adams again played slightly
>sub-optimally here with 63. ... Kf6.
>
>1. ... Kg5 2. Nb3 { Ne6+, Kc6 } Nc7+ 3. Kc6 Ne6 4. a4 Nf4 { Nd8+, Kf6, Kf5 } 5.
>a5 Nd3 6. Kb5 Nf4 { Kf6, Kf5 } 7. a6 Nd5 { Ne6, Kf6, Kf5 } 8. a7 Kf4 { Kf6,
>Kf5 } 9. Kc6 { Kc5 } Nb4+ { Ne7+, Ke5 } 10. Kd6 Na2 11. a8=Q Nc3 12. Qc6 { Qa1,
>Qb8, Qf8+, Qh8 } Ne2 { Ne4+ } 13. Qg2 { Qh1, Qc5, Qc4+, Qc2, Qb6, Kd5 } Ng3 14.
>Qf2+ Kg4 15. Ke5 Nh1 { Nh5 } 16. Qg1+ { Qf4+, Qg2+ } Ng3 17. Nd2 Kh4 18. Ne4
>Ne2 { Nxe4, Nh1, Nf1, Nh5, Kh5 } 19. Qg2 Ng1 { Nc1, Ng3, Nc3, Nf4, Nd4 } 20.
>Qxg1 { Qg3+, Qg5+, Kf5 } Kh3 { Kh5 } 21. Qg3# 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |///| |/k/| |///| 6
> +---+---+---+---+---+---+---+---+
>5 |///| |///| K |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |/N/| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>In this position Kasparov found 64. Kd6, which is strictly correct, and Adams
>responded with 64. ... Kf7, which was one of four best moves, and Kasparov
>found 65. Ne6, also one of four best moves.
>
>1. Kd6 Kg5 { Kg7, Kf7, Kg6 } 2. Nb3 { Nc2, Ne6+, Nc6 } Kf4 { Kf6, Kg6, Kf5 } 3.
>Kc6 Nb8+ { Ke3, Ke5 } 4. Kc7 Na6+ { Ke3, Ke5, Ke4 } 5. Kb7 Nb8 { Ke3, Kg3, Ke5,
>Kg5, Kf3, Kf5, Ke4, Kg4 } 6. Kxb8 Ke3 { Kg3, Ke5, Kg5, Kf3, Kf5, Ke4, Kg4 } 7.
>a4 Kf2 { Kf4, Ke2, Ke4, Kd3, Kf3 } 8. a5 { Kc7 } Ke3 { Ke2 } 9. a6 { Kc7 } Kd3
>10. a7 { Kc7 } Kc4 11. a8=Q { Nc1, Na1, Na5+, Kc7 } Kxb3 12. Qd5+ { Qf3+, Ka7,
>Kc7 } Kc2 { Kb2, Kc3 } 13. Ka7 { Kc7, Kb7 } Kb1 { Kc1, Kc3, Kb2 } 14. Qg2
>{ Qd2, Kb6, Ka6 } Ka1 { Kc1 } 15. Kb6 { Ka6 } Kb1 16. Kc5 { Kb5 } Ka1 { Kc1 }
>17. Kb4 { Kd4, Kc4 } Kb1 18. Kc3 { Kb3 } Ka1 { Kc1 } 19. Qb2# 1-0
>
> a b c d e f g h
> +---+---+---+---+---+---+---+---+
>8 | |///| |///| |///| |///| 8
> +---+---+---+---+---+---+---+---+
>7 |///| |///| |///| k |///| | 7
> +---+---+---+---+---+---+---+---+
>6 | n |///| |/K/| N |///| |///| 6
> +---+---+---+---+---+---+---+---+
>5 |///| |///| |///| |///| | 5
> +---+---+---+---+---+---+---+---+
>4 | |///| |///| |///| |///| 4
> +---+---+---+---+---+---+---+---+
>3 |/P/| |///| |///| |///| | 3
> +---+---+---+---+---+---+---+---+
>2 | |///| |///| |///| |///| 2
> +---+---+---+---+---+---+---+---+
>1 |///| |///| |///| |///| | 1
> +---+---+---+---+---+---+---+---+
> a b c d e f g h
>
>After resignation here is what would have transpired. This is the position
>before black's 65th, which he chose not to make.
>
>1. ... Kg6 { Kg8, Kf6 } 2. Nc5 Nxc5 3. Kxc5! Kf7 { Kf6 } 4. a4 { Kb6, Kd6,
>Kc6 } Ke8 { Ke7 } 5. Kb6 { Kc6 } Kd7 { Kd8 } 6. Kb7! Ke6 { Ke8, Kd6, Kd8, Ke7 }
>7. a5 { Kc6 } Kd5 { Kf5, Kd7, Kf7, Ke5, Ke7, Kd6, Kf6 } 8. a6 Kc4 { Ke4, Ke6,
>Kd4, Kd6, Kc5, Ke5 } 9. a7 { Kc6 } Kb3 { Kd3, Kd5, Kc3, Kc5, Kd4 } 10. a8=Q
>{ Kc6, Kb6, Kc7 } Kc2 11. Qa5 { Qa3, Qd8, Qe8, Qf8, Kc6, Kb6, Kc7 } Kd3 12. Qe1
>Kc2 { Kc4, Kd4 } 13. Kc6 { Kb6 } Kb3 { Kd3, Kb2 } 14. Qd2 { Qe2, Qc1, Kb5, Kd5,
>Kc5 } Kc4 { Ka3 } 15. Qe3 { Kb6 } Kb4 16. Qd3 Ka4 17. Kc5 Ka5 18. Qb5# { Qa3# }
>1-0
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.