Author: Uri Blass
Date: 10:42:16 09/26/03
Go up one level in this thread
On September 26, 2003 at 12:29:09, Mihaly Szalai wrote: >I think most of the chess engines will show a positive score >(i.e. will find 4.h8=B) in this position except Junior. (We talked >about something similar earlier.) > >[D]8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1 > >1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B! > >You should try it with your engine. > >Thanks >Mihaly > >PS. After some more moves Junior is still baffled. Can you explain this? > >1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B Ka3 5. Kc2 b3+ 6. Kc1 a1=Q+ 7. Bxa1 * > >New game >[D]8/8/6p1/6P1/8/kp6/8/B1K5 b - - 0 1 > >Analysis by Junior 8: > >7...b2+ 8.Bxb2+ Kb3 9.Kb1 > +- (4.97) Depth: 3 00:00:00 >7...Kb4 8.Bh8 > = (0.00) Depth: 3 00:00:00 >7...Kb4 8.Bh8 > = (0.00) Depth: 6 00:00:00 >7...Kb4 8.Bh8 > = (0.00) Depth: 9 00:00:00 >7...Kb4 8.Bh8 > = (0.00) Depth: 12 00:00:00 1kN, tb=1 >7...Kb4 8.Bh8 > = (0.00) Depth: 15 00:00:00 5kN, tb=6 >7...Kb4 8.Bh8 > = (0.00) Depth: 18 00:00:00 28kN, tb=64 >7...Kb4 8.Bh8 > = (0.00) Depth: 21 00:00:00 68kN, tb=225 >7...Kb4 8.Bh8 > = (0.00) Depth: 24 00:00:00 314kN, tb=1541 >7...Kb4 8.Bh8 > = (0.00) Depth: 27 00:00:01 599kN, tb=3160 >7...Kb4 8.Bh8 > = (0.00) Depth: 30 00:00:02 1316kN, tb=6605 >7...Kb4 8.Bh8 > = (0.00) Depth: 33 00:00:08 4803kN, tb=20399 >7...Kb4 8.Bh8 > = (0.00) Depth: 35 00:00:13 8376kN, tb=31936 >7...Kb4 8.Bh8 > = (0.00) Depth: 37 00:00:22 14764kN, tb=48490 >7...Kb4 8.Bh8 > = (0.00) Depth: 39 00:00:38 26418kN, tb=73747 >7...Kb4 8.Bh8 > = (0.00) Depth: 41 00:01:09 50841kN, tb=115092 >7...Kb4 8.Bh8 > = (0.00) Depth: 42 00:01:28 64778kN, tb=136603 >7...Kb4 8.Bh8 > = (0.00) Depth: 43 00:01:49 80364kN, tb=160303 >7...Kb4 8.Bh8 > = (0.00) Depth: 44 00:02:15 100408kN, tb=190810 >7...Kb4 8.Bh8 > = (0.00) Depth: 45 00:02:49 125890kN, tb=227208 >7...Kb4 8.Bh8 > = (0.00) Depth: 46 00:03:26 154851kN, tb=268210 >7...Kb4 8.Bh8 > = (0.00) Depth: 47 00:04:14 190167kN, tb=315987 >7...Kb4 8.Bh8 > = (0.00) Depth: 48 00:05:14 234234kN, tb=375184 > >(Szalai, MyTown 26.09.2003) I continued with Junior7 8.Kb2 Ka5 9.Kxb3 Junior without the KBP vs KP tablebases is still buffled. New game 8/8/6p1/k5P1/8/1K6/8/B7 b - - 0 1 Analysis by Junior 7: 9...Kb6 10.Bh8 = (0.00) Depth: 3 00:00:00 9...Kb6 10.Bh8 = (0.00) Depth: 6 00:00:00 9...Kb6 10.Bh8 = (0.00) Depth: 9 00:00:00 9...Kb6 10.Bh8 = (0.00) Depth: 12 00:00:00 9...Kb6 10.Bh8 = (0.00) Depth: 15 00:00:00 2kN, tb=1 9...Kb6 10.Bh8 = (0.00) Depth: 18 00:00:00 11kN, tb=4 9...Kb6 10.Bh8 = (0.00) Depth: 21 00:00:00 40kN, tb=46 9...Kb6 10.Bh8 = (0.00) Depth: 24 00:00:00 136kN, tb=166 9...Kb6 10.Bh8 = (0.00) Depth: 26 00:00:00 333kN, tb=472 9...Kb6 10.Bh8 = (0.00) Depth: 29 00:00:02 1157kN, tb=2301 9...Kb6 10.Bh8 = (0.00) Depth: 32 00:00:05 2610kN, tb=6199 9...Kb6 10.Bh8 = (0.00) Depth: 35 00:00:10 5901kN, tb=23190 9...Kb6 10.Bh8 = (0.00) Depth: 37 00:00:20 10812kN, tb=44527 9...Kb6 10.Bh8 = (0.00) Depth: 39 00:00:33 17891kN, tb=74536 9...Kb6 10.Bh8 = (0.00) Depth: 41 00:00:50 27507kN, tb=112058 9...Kb6 10.Bh8 = (0.00) Depth: 43 00:01:15 41146kN, tb=157615 (, eim 26.09.2003) After Kb6 Kc4 again New game 8/8/1k4p1/6P1/2K5/8/8/B7 b - - 0 1 Analysis by Junior 7: 10...Ka7 11.Bh8 = (0.00) Depth: 3 00:00:00 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 6 00:00:00 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 9 00:00:00 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 12 00:00:00, tb=6 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 15 00:00:00 2kN, tb=21 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 18 00:00:00 9kN, tb=26 10...Ka7 11.Bh8 Kb6 = (0.00) Depth: 21 00:00:00 26kN, tb=100 10...Ka7 11.Bh8 = (0.00) Depth: 24 00:00:00 74kN, tb=240 10...Ka7 11.Bh8 = (0.00) Depth: 27 00:00:00 199kN, tb=766 10...Ka7 11.Bh8 = (0.00) Depth: 30 00:00:03 527kN, tb=2333 10...Ka7 11.Bh8 = (0.00) Depth: 33 00:00:04 1282kN, tb=5063 10...Ka7 11.Bh8 = (0.00) Depth: 36 00:00:07 2826kN, tb=10429 10...Ka7 11.Bh8 = (0.00) Depth: 38 00:00:11 5205kN, tb=18989 10...Ka7 11.Bh8 = (0.00) Depth: 40 00:00:18 8948kN, tb=34233 10...Ka7 11.Bh8 = (0.00) Depth: 42 00:00:28 14231kN, tb=58540 (, eim 26.09.2003) After Ka7 Kd5 New game 8/k7/6p1/3K2P1/8/8/8/B7 b - - 0 1 Analysis by Junior 7: 11...Kb6 12.Bh8 = (0.00) Depth: 3 00:00:00 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 6 00:00:00 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 9 00:00:00 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 12 00:00:00 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 15 00:00:00 1kN 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 18 00:00:00 4kN 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 21 00:00:00 7kN, tb=5 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 24 00:00:00 13kN, tb=13 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 27 00:00:00 26kN, tb=65 11...Kb6 12.Bd4+ Kb5 = (0.00) Depth: 30 00:00:00 49kN, tb=174 11...Kb6 12.Bd4+ = (0.00) Depth: 33 00:00:00 180kN, tb=694 11...Kb6 12.Bd4+ = (0.00) Depth: 36 00:00:02 707kN, tb=2933 (, eim 26.09.2003) After 11...Kb6 12.Ke6 New game 8/8/1k2K1p1/6P1/8/8/8/B7 b - - 0 1 Analysis by Junior 7: 12...Kc5 13.Kf6 +- (2.91) Depth: 3 00:00:00 12...Ka7 13.Kf6 = (0.00) Depth: 3 00:00:00 12...Ka7 13.Bd4+ Kb8 = (0.00) Depth: 6 00:00:00 12...Ka7 13.Bd4+ Kb8 = (0.00) Depth: 9 00:00:00 12...Ka7 13.Bd4+ Kb8 = (0.00) Depth: 11 00:00:00 12...Ka7 13.Bd4+ Kb8 = (0.00) Depth: 13 00:00:00 1kN 12...Ka7 13.Bd4+ = (0.00) Depth: 16 00:00:00 1kN, tb=1 12...Ka7 13.Bd4+ = (0.00) Depth: 19 00:00:00 3kN, tb=3 12...Ka7 13.Bd4+ = (0.00) Depth: 22 00:00:00 12kN, tb=108 12...Ka7 13.Bd4+ = (0.00) Depth: 25 00:00:00 27kN, tb=266 12...Ka7 13.Bd4+ = (0.00) Depth: 28 00:00:00 55kN, tb=412 12...Ka7 13.Bd4+ = (0.00) Depth: 31 00:00:00 130kN, tb=765 12...Ka7 13.Bd4+ = (0.00) Depth: 34 00:00:01 252kN, tb=1453 12...Ka7 13.Bd4+ = (0.00) Depth: 37 00:00:01 505kN, tb=3347 (, eim 26.09.2003) Uri
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