Author: Uri Blass
Date: 16:58:41 07/28/04
Go up one level in this thread
On July 28, 2004 at 19:32:42, Uri Blass wrote: >On July 28, 2004 at 18:59:10, chandler yergin wrote: > >>On July 28, 2004 at 16:17:41, Uri Blass wrote: >> >>>On July 28, 2004 at 15:33:11, chandler yergin wrote: >>> >>>>On July 28, 2004 at 08:14:08, Uri Blass wrote: >>>> >>>>>On July 28, 2004 at 02:44:22, chandler yergin wrote: >>>>> >>>>>>On July 27, 2004 at 20:30:35, Uri Blass wrote: >>>>>> >>>>>>>On July 27, 2004 at 19:15:32, chandler yergin wrote: >>>>>>> >>>>>>>>Come on guys... Simple chess! >>>>>>>>A5 is a Howler! >>>>>>>>Kc4! >>>>>>> >>>>>>> >>>>>>>Kc4 after a5 is an illegal move. >>>>>>>If you mean Kd5 then a6 Be3 Bd2 >>>>>>>same for Kf5 >>>>>>> >>>>>>>Uri >>>>>> A5 was made in the game.. >>>>>>Kc4 "Instead" of.. Draws >>>>>>Both players & Fritz miss it. >>>>>>CY >>>>> >>>>>Can you demonstrate the win after a5? >>>>> >>>>>I prefered Kc4 but I cannot see a win for black also after a5 because white can >>>>>play later after king move of black a6 Be3 Bd2 and if black choose d2 immediatly >>>>>then Bxd2 Bxd2 Kc4 is enough for white for a draw. >>>>> >>>>>Uri >>>> >>>>Here is the Line I think has to be played after a5: >>>>I'm just playing chess here; I'm not sure Crafty or Hiarchs >>>>sees it; you can check it out. >>>> >>>>Griffith,D - Burkett,M [C55] >>>>WC-2003-F-00004 IECG (1), 20.12.2003 >>>> >>>> 58.a5 d2 [58...Kf5] 59.Bxd2 Bxd2 60.a6 Be3 61.Kc4 [61...Kf5 62.Kd3 Kf4 63.Ke2 >>>>Ba7 64.Kf1 Kg3 65.h4 h5 66.Ke2 Kxh4 67.Kf3 Kh3 68.Kf4 h4 69.Kf3 Kh2 70.Kg4 h3 >>>>71.Kf3 Kg1 72.Kg3 h2 73.Kf4 h1Q] 0-1 >>> >>>Why 60.a6 and not 60.Kc4 that seems leading to a draw? >> >>Exactly correct! a6 is also a Bunder... >>60. Kc4 leads to a draw also! >> >>My point though, again, is that Fritz doesn't see it; but Crafty, Hiarchs, >>Ruffian, and others possibly do. >> >>What Engine do you use? >> >>Cheers! >>CY > >Your point is wrong > >Fritz has no problem to find Kc4 even without tablebases. >1 second with fast hardware after a6 it has no problem to find a big score for >black. > > >New game >[D]8/7p/4k3/PK6/8/7P/3b4/8 w - - 0 1 > >Analysis by Fritz 8: > >3.a6-- > µ (-1.06) Depth: 7/10 00:00:00 2kN >3.a6 Be3 4.Kc6 > µ (-1.06) Depth: 7/10 00:00:00 4kN >3.a6! > µ (-0.78) Depth: 8/12 00:00:00 9kN >3.a6-- > µ (-1.06) Depth: 9/12 00:00:00 17kN >3.a6 Be3 4.Kc6 > µ (-1.06) Depth: 9/12 00:00:00 24kN >3.a6! > µ (-0.78) Depth: 10/14 00:00:00 61kN >3.a6-- > µ (-1.06) Depth: 11/15 00:00:00 80kN >3.a6 Be3 4.Kc6 > µ (-1.06) Depth: 11/15 00:00:00 97kN >3.a6-- > µ (-1.34) Depth: 12/17 00:00:00 125kN >3.a6 Be3 4.Kc6 > µ (-1.34) Depth: 12/17 00:00:00 137kN >3.a6 Be3 4.Kc6 Kf5 5.Kb7 Kf4 6.Kc8 Kg3 7.Kc7 Kxh3 8.Kb8 > µ (-1.34) Depth: 13/18 00:00:00 213kN >3.a6-- > -+ (-1.62) Depth: 14/20 00:00:00 290kN >3.a6 Be3 4.Kc6 > -+ (-1.62) Depth: 14/20 00:00:00 325kN >3.a6-- > -+ (-1.91) Depth: 15/20 00:00:00 541kN >3.a6 Be3 4.Kc6 Kf5 > -+ (-1.91) Depth: 15/20 00:00:00 587kN >3.a6-- > -+ (-2.19) Depth: 16/23 00:00:00 1082kN >3.a6 Be3 4.Kc6 Kf5 > -+ (-2.19) Depth: 16/23 00:00:00 1126kN >3.Kc4! > -+ (-2.16) Depth: 16/23 00:00:01 3013kN >3.Kc4 Kf5 4.Kd3 Bf4 5.a6 Bb8 6.Kd4 Ba7+ 7.Kd5 Kf4 8.h4 h5 9.Kc6 Kg4 > -+ (-2.19) Depth: 17/24 00:00:03 6107kN >3.Kc4 Kf5 4.Kd3 Bf4 5.a6 Bb8 6.Kd4 Ba7+ 7.Kd5 Kf4 8.h4 h5 9.Kc6 Kg4 > -+ (-2.19) Depth: 18/26 00:00:04 7976kN >3.Kc4 Be3 4.Kd3 Ba7 5.Ke4 Kd6 6.a6 Kc7 7.h4 Kb6 8.h5 Kc6 9.h6 Kb5 10.Kd5 > -+ (-1.94) Depth: 19/28 00:00:19 33659kN >3.Kc4 Be3 4.Kd3 Ba7 5.Ke4 Kd6 6.a6 Kc7 7.h4 Kc8 8.h5 Kc7 9.h6 Kb6 10.Kd3 > -+ (-1.94) Depth: 20/30 00:00:32 58685kN > >(, MyTown 29.07.2004) > >After a6? > >New game >8/7p/P3k3/1K6/8/7P/3b4/8 b - - 0 1 > >Analysis by Fritz 8: > >3...Be3 4.Kc6 h5 5.Kb7 h4 6.Kb8 Kd5 7.Kb7 Bd4 8.Kb8 > µ (-1.09) Depth: 7/10 00:00:00 6kN >3...Be3 4.Kc6 Kf5 5.Kc7 Kf4 6.Kb7 Kg3 7.h4 Kxh4 8.Kb8 h5 > µ (-1.28) Depth: 8/15 00:00:00 12kN >3...Be3 4.Kc6 Kf5 5.Kc7 Kf4 6.Kb8 Kg3 7.a7 Bxa7+ > µ (-1.38) Depth: 9/15 00:00:00 23kN >3...Be3! > -+ (-1.66) Depth: 10/17 00:00:00 34kN >3...Be3 4.Kc6 Kf5 5.Kc7 Kf4 6.Kb8 Kg3 7.h4 Kxh4 8.Ka8 Kh3 > -+ (-1.84) Depth: 11/18 00:00:00 59kN >3...Be3 4.Kc6 Kf5 5.Kc7 Kf4 6.h4 h5 7.Kc6 Bf2 8.Kb7 Kg3 9.Kb8 > -+ (-1.91) Depth: 12/19 00:00:00 119kN >3...Be3 4.Kc6 Kf5 5.Kc7 Kf4 6.h4 h5 7.Kc6 Kg3 8.Kc7 Kxh4 9.Kb7 Kh3 > -+ (-2.16) Depth: 13/21 00:00:00 214kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.Ke2 Ke6 7.Kf3 Kd5 8.h4 Kc6 9.h5 Kb5 10.Ke4 Kc6 > -+ (-2.22) Depth: 14/20 00:00:00 403kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.Ke2 h5 7.Kf3 h4 8.Ke2 Kf4 9.Kf1 Ke5 10.Kg2 Kd5 >11.Kf3 > -+ (-2.28) Depth: 15/21 00:00:00 633kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.h4 Kg4 7.Ke4 Kxh4 8.Kd5 h5 9.Kc6 Kh3 10.Kb7 > -+ (-2.41) Depth: 16/21 00:00:00 989kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.h4 Kg4 7.Ke4 Kxh4 8.Kd5 h5 9.Kc6 Kh3 10.Kc7 h4 >11.Kb7 Be3 > -+ (-2.63) Depth: 17/21 00:00:01 1486kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.h4 Kg4 7.Ke4 Kxh4 8.Kd5 h5 9.Kc6 Kg4 10.Kb7 Be3 >11.Kc7 h4 12.Kb7 Kh3 > -+ (-2.88) Depth: 18/24 00:00:01 2522kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.h4 Kg4 7.Ke4 Kxh4 8.Kd5 h5 9.Kc6 Kg4 10.Kb7 Be3 >11.Kc7 h4 > -+ (-2.88) Depth: 19/23 00:00:02 3413kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.h4 Kg4 7.Ke4 Kxh4 8.Kd5 h5 9.Kc6 Kg4 10.Kb7 Be3 >11.Kc7 h4 > -+ (-2.88) Depth: 20/27 00:00:03 5583kN >3...Be3! > -+ (-3.16) Depth: 21/26 00:00:05 7532kN >3...Be3 4.Kc4 Kf5 5.Kd3 Ba7 6.Ke2 Kf4 7.h4 h5 8.Ke1 Kg4 9.Ke2 Kxh4 10.Kf3 Kh3 >11.Kf4 h4 > -+ (-3.34) Depth: 22/32 00:00:14 24108kN >3...Be3! > -+ (-3.63) Depth: 23/34 00:00:19 33142kN > >(, MyTown 29.07.2004) > > >Uri I also do not believe that white used my stupid movei that still prefers a6 after half an hour. Knowledge about endgame is not the strong point of movei and this together with bad search leads to the following line. depth=20 -3.36 a5a6 d2e3 b5c6 e6f5 c6d5 h7h5 d5d6 h5h4 d6e7 f5f4 e7e6 f4g3 e6d5 g3h3 d5e4 e3a7 e4f3 h3h2 f3e2 h2g3 Nodes: 873140256 NPS: 877880 Time: 00:16:34.60 Nodes: 1364858544 NPS: 893319 Time: 00:25:27.85 Uri
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