Author: John Merlino
Date: 16:52:21 02/05/01
Go up one level in this thread
On February 05, 2001 at 19:02:26, Arturo Ochoa wrote: >[D]r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - - > > >Main Line: 1. Bxg6!! hxg6 2. Re7+ Rxe7 3. dxe7+ Kxe7 4. Rd8! Kxd8 5. h7 1-0 > >Neither the Programs that I have tested (Fritz, Rebel, Hiarcs, Junior, Gromit, >LambChop, Diep2) can solve the position. They can only "see" the weak move 1. >cxb5? > >Tell me if I am wrong. > >Regards, Arturo. Chessmaster 8000 agrees with all the others, so it might be a bit strong to say that it is a "weak" move, when it appears to ALSO be winning: Time Depth Score Positions Moves 0:00 2/5 0.75 13774 1. Red1 Rf6 2. cxb5 Bb7 3. Rxc5 Rxd6 0:00 2/6 0.75 42298 1. Red1 Rf6 2. cxb5 Bb7 3. Rxc5 Rxd6 0:02 3/7 0.40 154294 1. Red1 Rf6 2. cxb5 Bb7 3. Rxc5 Rxd6 4. c4 Rxd1+ 5. Bxd1 0:04 3/7 0.73 340092 1. Rd2 Ba6 2. Bb3 Rc8 3. cxb5 c4 4. Ba4 Bb7 0:05 3/7 0.82 392736 1. cxb5 Bb7 2. Rd2 Re8 3. Rxe8 Kxe8 4. Bb3 Rf6 5. d7+ Kd8 0:07 4/8 0.88 540101 1. cxb5 Bb7 2. Rd2 f3 3. Bb3 f2+ 4. Rxf2 Rxf2 5. Re7+ Kxd6 6. Re6+ Kc7 7. Kxf2 0:29 5/9 0.88 2355325 1. cxb5 Bb7 2. Rd2 f3 3. Kf2 Re8 4. Rxe8 Kxe8 5. Bb3 Rf6 6. d7+ Kd8 1:33 6/10 1.00 7839754 1. cxb5 Bb7 2. Rdd1 f3 3. Kf2 Re8 4. Rxe8 Kxe8 5. Re1+ Kd8 6. Bb3 Rd7 6:13 7/11 1.02 31964769 1. cxb5 Bb7 2. Rdd1 f3 3. Kf2 Re8 4. Rxe8 Kxe8 5. Bb3 Rf4 6. Bg8 Rh4 7. d7+ Kd8 After making all of the moves in your main line, the score does not improve THAT much: Time Depth Score Positions Moves 0:00 4/6 0.51 12165 5... Kd7 6. h8=Q bxc4 7. Qh3+ Kd8 8. Qg2 f3 9. Qxf3 0:00 5/7 0.97 35727 5... Kd7 6. h8=Q a6 7. Qg7+ Kd6 8. Qxg6+ Be6 9. Qd3+ Ke5 10. cxb5 axb5 11. Qxb5 Rxa2 12. Qxc5+ Ke4 0:02 6/8 1.14 121169 5... Kd7 6. h8=Q bxc4 7. Qe5 Bb7 8. Qxf4 Re8 9. Qf7+ Re7 10. Qxg6 0:03 7/9 1.33 260485 5... Kd7 6. h8=Q bxc4 7. Qh3+ Kc7 8. Qf3 Bb7 9. Qxf4+ Kb6 10. Qf7 Rd8 11. Qxg6+ Kc7 0:05 7/9 1.30 437473 5... bxc4 6. h8=Q+ Kd7 7. Qh3+ Kc7 8. Qf3 Bb7 9. Qxf4+ Kb6 10. Qd6+ Bc6 11. Qxg6 Rh8 12. Qd6 0:13 8/10 1.31 1106521 5... bxc4 6. h8=Q+ Kd7 7. Qg7+ Kd6 8. Qxg6+ Be6 9. Qf6 Rg8+ 10. Kf2 Kd5 11. Qxf4 Rg4 12. Qd2+ Ke5 13. Qe3+ Kd6 0:36 9/11 1.41 3126071 5... bxc4 6. h8=Q+ Kd7 7. Qg7+ Kd6 8. Qxg6+ Be6 9. Qf6 Rg8+ 10. Kf2 Kd7 11. Qxf4 Bd5 12. Qe5 Rf8+ 13. Kg3 2:09 10/12 1.50 10900512 5... bxc4 6. h8=Q+ Kd7 7. Qe5 Bb7 8. Qxc5 f3 9. Qd4+ Ke6 10. Qxc4+ Bd5 11. Qg4+ Ke5 12. Qd4+ Ke6 13. c4 Bc6 14. Kf2 jm
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.