Author: Dann Corbit
Date: 18:21:48 11/06/01
Go up one level in this thread
On November 06, 2001 at 20:20:13, K. Burcham wrote: > >Engine: Shredder 5 >by Stefan Meyer-Kahlen > > 13.01 0:01 +10.91 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Bxb6 5.a7+ Bxa7 6.c7+ >Kxc7 7.Bb6+ Kxb6 8.Ka3 Bb8 (629.043) 496.0 > 14.01 0:01 +11.16++ 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Bd6 (729.793) 491.7 > 14.01 0:01 +11.66++ 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Kc8 (741.093) 491.4 > 14.01 0:02 +19.88 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Bxb6 5.Bxb6 Kc8 6.c7 >Kd7 7.a7 Kc6 8.a8Q+ Kxb6 9.c8Q (1.372.317) 500.2 > 15.01 0:03 +20.07 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Bxb6 5.Bxb6 Kc8 6.c7 >Kd7 7.a7 Kc6 8.c8Q+ Kxb6 9.Qb8+ Kc5 (1.572.515) 503.3 > 16.01 0:03 +20.32++ 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Kb8 4.b6 Kc8 5.a7 Kd8 6.a8Q+ >Ke7 (1.841.399) 497.9 > 16.01 0:03 +20.82++ 1.Be3+ Kb8 2.c5 Ka7 3.c6+ Ka8 4.b6 Bd6 5.b7+ Kb8 6.a7+ >Kc7 7.a8Q Bc5 (1.858.828) 497.2 > 16.01 2:22 +M13 1.Be3+ Kb8 2.c5 Kc8 3.c6 Kd8 4.a7 Ke7 5.a8Q Kf7 6.Qh8 Bd6 >7.Qh7+ Ke6 8.Qd7+ Kd5 9.Qxf5+ Kc4 10.Qe4+ Kc3 11.Qb1 Bxf4 12.Qb3+ (71.368.384) >500.7 >best move: Bd2-e3 time: 3:55.615 min n/s: 498.248 nodes: 117.391.854 TB: 632 > >not sure about beowulf. Actually, other versions of Beowulf have found both solutions. I was wondering more along the lines of "What is the mistake in Beowulf's thinking" and "What is the reason behind general superiority of Be3+?" Things of that nature. Beowulf thinks that (the strange looking) Bc1 is a great idea for quite a while, and also settles on Kb3. Now, I have seen that Kb3 also wins (though it wastes a tempo). I was wondering what is going on with this position. Does Bc1 have any merit? (For instance) By the way, a finding of +M13 is really quite incredible. I have never seen any program produce such a solid result in so short a time span. Here is the ChessMaster 8000 output: 0:01 11/12 3.16 306391 1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7 4. Ke3 Kb8 5. Bc3 Bd8 6. Bb2 Ka7 0:03 12/13 3.04 589022 1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7 4. Ke3 Kb8 5. Bc3 Bd8 6. Ba1 Ka7 7. Bb2 0:06 13/14 3.05 1241087 1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7 4. Ke3 Kb8 5. Bc3 Bd8 6. Ba1 Ka7 7. Bb2 Be7 0:14 14/15 3.04 2799840 1. Kb3 Bd8 2. Kc3 Bb6 3. Kd3 Bc7 4. Ke3 Kb8 5. Bc3 Bd8 6. Ke2 Bc7 7. Kf3 Bd8 8. Ke3 Ka7 0:29 14/15 3.08 5654068 1. Be3 Bb6 2. Bf2 Kb8 3. Be1 Bc7 4. b6 Bxb6 5. Ba5 Ba7 6. Kb5 Kc8 7. Bb6 Bb8 8. a7 Bxa7 9. Bxa7 1:10 15/16 3.04 13414605 1. Be3 Bd6 2. Kb3 Kb6 3. Kc3 Bb8 4. Kd3 Bd6 5. Bd2 Ka7 6. Ke3 Bc7 7. Be1 Bb6 8. Bc3 Bd8 1:41 15/16 3.29 19543736 1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8 4. Kxc5 Ba5 5. Kd6 Ka8 6. Bf2 Bc7+ 7. Ke6 Bxf4 8. Kxf6 Kb8 9. Kxf5 Bd6 10. a7+ Kb7 2:11 16/17 3.83 25616815 1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8 4. Bxc5+ Ka8 5. Be7 Bxf4 6. c5 Bc1 7. Bd6 Ba3 8. Bf4 Bxc5 9. Kxc5 Ka7 10. Kb5 Ka8 11. Bd6 Ka7 12. Bc5+ Ka8 13. Be3 3:56 17/18 4.40 46669899 1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Bb8 4. Bxc5+ Ka8 5. Be7 Bxf4 6. c5 Bc1 7. Bd6 Ba3 8. Bf4 Bxc5 9. Kxc5 Ka7 10. Kb5 Ka8 11. Bg5 Ka7 12. Bxf6 f4 13. Bd4+ Kb8 8:37 18/19 4.56 104773163 1. b6+ Bxb6 2. Kb5 Bc7 3. Be3 Kb8 4. Kxc5 Ba5 5. Kd6 Ka8 6. Ke6 Kb8 7. Bf2 Bd2 8. Kxf5 Kc7 9. Bd4 Kc6 10. Bxf6 Kb6 Here is the prose version: The Chessmaster recommends: Pawn to b6. Analysis: You move your pawn to b6, which forks Black's king and Black's bishop and advances the passed pawn. Black answers with bishop captures pawn at b6, which protects Black's king and isolates your pawn at a6 and your pawn at c4. You move your king to b5, which removes the threat on your pawn at a6. Black answers with bishop to c7. You move your bishop to e3. Black responds by moving the king to b8. Your king captures pawn, which creates a passed pawn on c4. Black replies by moving bishop to a5. You move your king to d6. Black answers with king to a8. You move your king to e6, which forks Black's pawn at f6 and Black's pawn at f5. Black counters by moving the king to b8. You move your bishop to f2. Black responds by moving the bishop to d2, which attacks your pawn at f4. Your king takes pawn at f5, which removes the threat on your pawn at f4 and blocks Black's pawn at f6. Black responds with the king to c7. You move your bishop to d4. Black responds by moving the king to c6. Your bishop takes pawn, which creates a passed pawn on f4. Black counters with king to b6, which attacks your pawn at a6. As a result of this sequence of moves, you win three pawns for a pawn. In addition, your mobility is somewhat increased.
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