Author: Bruce Moreland
Date: 10:35:44 11/21/00
Go up one level in this thread
On November 21, 2000 at 03:25:00, Dann Corbit wrote: >[D]8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8; id "WAC.146"; I don't know how to regard this. 1. Bc8 is really cool because if black tries ... f2, white can convert into an ending with unstoppable pawns, while black's pawn can be stopped by the bishop. 1. Bd3 wins too, but it's because both sides queen, which is more complicated. If you put a black pawn on e7, the position becomes *extremely* interesting, and the original solution is unique again, I believe. The position is more interesting than the original problem, because black has the option of defending his pawns, and white can't break through as easily. I believe that Bd3 doesn't work in this new position, but I haven't figured it out completely. bruce >Searched Move: b6+ >Right = 1/2 Stime = 10.9 Total NPS = 429381 <time_sq> = 120 <depth> = 20 > >White to Move Book Move(s): Bc8 > Test Position: "WAC.146" > 1. 2.46 0 78031 1. Bh3 > 1. 2.52 0 78036 1. Be6 > 1. 2.54 0 78037 1. Bd7 > 1. 2.54 0 78051 1. Bd7 > 2. 2.53 0 78062 1. Bd7 Ke5 > 2. ++ 0 78134 1. Bh7 > 2. 1.82 0 78343 1. Bd7 f2 > 2. 2.51 0 78365 1. Be6 Ke5 > 2. 2.52 0 78424 1. Bd3 Ke3 > 2. 2.52 0 78496 1. Bd3 Ke3 > 3. 2.55 0 78525 1. Bd3 Ke3 2. Bf5 > 3. ++ 0 78826 1. Bh7 > 3. 2.55 0 79404 1. Bd3 Ke3 2. Bf5 > 3. 2.55 0 80628 1. Bd3 Ke3 2. Bf5 > 4. 2.64 0 80953 1. Bd3 Ke3 2. c5 dxc5 > 4. 2.64 0 83123 1. Bd3 Ke3 2. c5 dxc5 > 5. 2.54 0 84780 1. Bd3 Ke3 2. Bf5 Kf4 3. Bd7 > 5. ++ 0 91118 1. Bc8 > 5. -- > 5. 2.54 0 94138 1. Bd3 Ke3 2. Bf5 Kf4 3. Bd7 > 5. 5.87 0 99653 1. Bc8 f2 2. Bh3 Kg3 3. Bf1 > 5. 5.87 0 116910 1. Bc8 f2 2. Bh3 Kg3 3. Bf1 > 6. -- > 6. ++ 0 117724 1. Bc8 > 6. 5.87 0 118439 1. Bc8 f2 2. Bh3 Kg3 3. Bf1 Kf4 > 6. 5.87 0 161237 1. Bc8 f2 2. Bh3 Kg3 3. Bf1 Kf4 > 7. 5.87 0 165796 1. Bc8 f2 2. Bh3 Ke3 3. Bf1 Kd4 > 7. ++ 0 186436 1. Bh3 > 7. -- > 7. 5.87 0 191756 1. Bc8 f2 2. Bh3 Kg3 3. Bf1 Kf4 4. Kxd6 > 7. 6.64 0 212491 1. Bh3 Kg3 2. Bf1 Kf2 3. Kxd6 Ke1 4. Bh3 > 7. 6.64 0 212520 1. Bh3 Kg3 2. Bf1 Kf2 3. Kxd6 Ke1 4. Bh3 > 8. -- > 8. ++ 0 221385 1. Bh3 > 8. 6.45 0 223648 1. Bh3 Kg3 2. Bf1 Kf2 3. Kxd6 Ke1 4. Bh3 f2 > 8. 6.45 0 223732 1. Bh3 Kg3 2. Bf1 Kf2 3. Kxd6 Ke1 4. Bh3 f2 > 9. 6.45 0 232656 1. Bh3 Kg3 2. Bf1 Kf2 3. Kxd6 Ke1 4. Bh3 f2 5. c5 > 9. ++ 0 264037 1. Bd3 > 9. 8.88 0 295723 1. Bd3 Ke3 2. c5 dxc5 3. d6 Kd2 4. d7 c4 5. d8=Q > 9. 8.88 0 304900 1. Bd3 Ke3 2. c5 dxc5 3. d6 Kd2 4. d7 c4 5. d8=Q > 10. ++ 0 314109 1. Bd3 > 10. 14.23 1 495219 1. Bd3 Ke3 2. c5 Kd4 3. cxd6 Kc3 4. d7 Kd2 5. d8=Q >Ke3 > 10. 14.23 1 525349 1. Bd3 Ke3 2. c5 Kd4 3. cxd6 Kc3 4. d7 Kd2 5. d8=Q >Ke3 > 11. ++ 1 529553 1. Bd3 > 11. 16.49 6 1363057 1. Bd3 Kg3 2. c5 Kf4 3. cxd6 Ke5 4. d7 Kf4 5. d8=Q >Ke3 > 11. 16.49 6 1393518 1. Bd3 Kg3 2. c5 Kf4 3. cxd6 Ke5 4. d7 Kf4 5. d8=Q >Ke3 > 12. ++ 6 1402113 1. Bd3 > 12. MATE+ 33 9555958 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 > 12. MATE+ 33 9738198 1. Bd3 f2 2. c5 Ke3 3. cxd6 Kxd3 > >node_count = 9738198 quiescent nodes = 10482 eval_count = 4534996 >hash hits = 2251420 hash moves = 342378 pawn hash hits = 4522278 >node_rate = 290779 null cuts = 935545 exten = 747422 int_iter = 120 >egtb_probes = 267932 egtb_hits = 267932 fail_high(%) = 93
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.