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ANNOTATED GAME
The Power of the Bishop Pair
byakuugan3 (1635) vs. Bruce B. (1678)
Annotated by: byakuugan3 (1200)
Chess opening: Reti (A05), King's Indian attack, Spassky's variation
byakuugan3 (1635) vs. Bruce B. (1678)
Annotated by: byakuugan3 (1200)
Chess opening: Reti (A05), King's Indian attack, Spassky's variation
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63... Na6 64. Bd5+ Ka7 65. Ba5 |
I make this waste move to see what Black does. Eventually I will put Black in zugswang, where anything he does will lose his knight or get mated. | |||||
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65... Nb8+ |
If Nc5 , then Kc6 Na6 Bc4 Nb8 Kb5 and then Be6 will trap the knight and I'll always have a tactic to win it. The knight's only escape after Kb5 is Nd7, but Be6 will trap the knight or force it away from the king where it can be trapped. I didn't have time to analyse this deep during the game, but my moves were logical, and usually in endgames, the logical looking moves are correct. | |||||
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66. Kc7 Na6+ |
It's bad to threaten my bishop with Ka6, because the simple Bc3 retreat wins immediately, since Ka7 is the only move that defends the knight, then Bd4 wins the knight. | |||||
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67. Kc6 Nb8+ 68. Kb5 Nd7 |
Na6 loses to Bb6 | |||||
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69. Be6 |
The knight can longer go back to the king because of Nb8 Bc8 Ka8 Kb6 and Black's king is stalemated, while his knight is in zugswang and must move to where I can capture it. | |||||
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69... Nf6 |
So the knight must leave the guard of the king, where I can set up mating threats | |||||
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70. Kc6 |
Black loses quickly if he plays Ka6, because I play Bb6 and have an unstoppable mate in 1 threat. | |||||
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70... Ne4 71. Bb4 |
I shouldn't worry about taking Black's isolated knight yet, since it isn't in a position to interfere with my mating ideas. | |||||
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71... Nf6 |
I win faster if Black's king moves to the 8th rank, because Kb6 seals him in to be mated quickly. 71.Ka6 allows Bc5 Ka7 Kc7 and Black has to lose the knight or get mated | |||||
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72. Bc5+ Kb8 |
Ka6 still allows my unstoppable mate threat with Bb6. | |||||
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73. Kb6 |
If Black's knight wasn't guarding d5, then I would have Bd6 Ka8 Bd5#, so Black is forced to move his king | |||||
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73... Ka8 74. Be7 |
I attack the knight defending d5. Luckily I didn't play Bd6, because Nd7 is a stalemate cheapo and the knight can get back over to the king. | |||||
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74... Ne8 75. Bd8 |
I'm trying to get my bishop to c7 to assist in my mating attack. I can attack the c7-guard with Bd7 if Black moves his king to b8, and then c7 will be clear for Bc7 Ka8 Bc6# | |||||
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75... Ng7 |
Here I had only 23 seconds left, and was searching for a forced win. I have the simple Bd7 followed by Bc7 and Bc6#. And I also have many other forced winning sequences. My first instinct was to check, so this was the forced mate I saw: | |||||
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76. Bd5+ Kb8 77. Bc7+ Kc8 78. Kc6 |
Black is in zugswang, and can only move his knight, but the knight is the only defender of e6, so I'll have Be6 mate next move. Black lost on time in this position, while I had a little more than 10 seconds. | |||||
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