Author: Uri Blass
Date: 14:02:12 04/04/04
Go up one level in this thread
On April 04, 2004 at 16:48:17, Harald Lüßen wrote: >On April 04, 2004 at 16:43:25, Uri Blass wrote: > >>On April 04, 2004 at 15:55:31, Uri Blass wrote: >> >>>On April 04, 2004 at 14:08:49, Robert Hyatt wrote: >>> >>>>On April 04, 2004 at 08:52:41, Eduard Nemeth wrote: >>>> >>>>>Endgame Testpostition >>>>> >>>>>The Game: >>>>> >>>>>[Event "4NCL West Bromwich ENG"] >>>>>[Site "?"] >>>>>[Date "2004.??.??"] >>>>>[Round "5"] >>>>>[White "Collinson, A."] >>>>>[Black "King, D."] >>>>>[Result "0-1"] >>>>>[ECO "B50"] >>>>>[WhiteElo "2390"] >>>>>[BlackElo "2495"] >>>>>[PlyCount "105"] >>>>>[EventDate "2004.??.??"] >>>>> >>>>>1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bd3 Nc6 5. Bc2 Bg4 6. d3 e6 7. Nbd2 Be7 8. h3 >>>>>Bh5 9. Nf1 d5 10. Ng3 Bg6 11. Qe2 Qc7 12. Bg5 O-O-O 13. e5 Nh5 14. Bxe7 Qxe7 >>>>>15. Nxh5 Bxh5 16. g4 Bg6 17. O-O-O d4 18. c4 h5 19. a3 Qc7 20. Rde1 hxg4 21. >>>>>hxg4 Rxh1 22. Rxh1 a6 23. Ba4 Ne7 24. Nd2 b5 25. Bc2 Qb7 26. Rh2 Kc7 27. f4 Rb8 >>>>>28. Qf3 Qxf3 29. Nxf3 Nc6 30. b3 Rf8 31. Nh4 Rh8 32. Kd2 f6 33. exf6 gxf6 34. >>>>>Nf3 Rxh2+ 35. Nxh2 b4 36. a4 f5 37. Bd1 Kd6 38. Nf1 e5 39. gxf5 Bxf5 40. Ng3 >>>>>Ke6 41. Bf3 Na5 42. Bd5+ Kf6 43. fxe5+ Kxe5 44. Kc2 Kf4 45. Nxf5 Kxf5 46. Be4+ >>>>>Kf4 47. Bg2 Ke3 48. Be4 Ke2 49. Bg2 Nxb3 50. Bb7 Na1+ 51. Kb2 a5 52. Be4 Kd2 >>>>>53. Kxa1 0-1 >>>>> >>>>>After move 49 white: >>>>> >>>>>Collinson,A - King,D >>>>> >>>>> >>>>>[D]8/8/p7/n1p5/PpPp4/1P1P4/2K1k1B1/8 b - - 0 1 >>>>> >>>>>Nxb3! >>>>> >>>>>Great move by D. King. >>>>> >>>>> Eduard. >>>> >>>> >>>>I don't believe this is a tough computer position. crafty finds this and sticks >>>>with it after .12 seconds... >>> >>>I think that it is dependent on evaluation. >>> >>>There are programs that certainly have problems with that position including my >>>program. >>>The problem is wrong evaluation of pawn endgames or wrong evaluation of passed >>>pawns. >>> >>>It seems to me based on looking at analysis of movei that the problem is wrong >>>evaluation of pawn endgames. >>> >>>Uri >> >>It seems that Crafty also has a problem and the score drops to 0.00 if you get >>depth 20 >> >>Here is some analysis by Crafty19.11 under chessbase(note that it is possible >>that you will get different results with more tablebases but it is not that >>crafty has superior knowledge) >> >>New game >>8/8/p7/n1p5/PpPp4/1P1P4/2K1k1B1/8 b - - 0 1 >> >>Analysis by Crafty 19.11: >> >>1...Nxb3 >> µ (-1.32) Depth: 1/4 00:00:00 >>1...Nxb3 2.Bf1+ Kxf1 3.Kxb3 >> µ (-0.87) Depth: 2/4 00:00:00 >>1...Nxb3 2.Bf1+ Kxf1 3.Kxb3 >> µ (-0.87) Depth: 3/6 00:00:00 >>1...Nxb3 2.Bf1+ Kxf1 3.Kxb3 Ke2 >> µ (-1.17) Depth: 4/7 00:00:00 >>1...Nxb3 2.Kxb3 Kxd3 3.Bd5 Kd2 >> µ (-1.29) Depth: 5/9 00:00:00 >>1...Nxb3 2.Kxb3 Kxd3 3.Bb7 a5 4.Bd5 >> µ (-1.25) Depth: 6/10 00:00:00 2kN >>1...Nxb3 2.Kxb3 Kxd3 3.Bb7 a5 4.Bf3 Ke3 >> µ (-1.31) Depth: 7/10 00:00:00 4kN >>1...Nxb3 2.Kxb3 a5 3.Be4 Ke3 4.Bh7 Kd2 5.Be4 >> +- (1.97) Depth: 8/11 00:00:00 7kN >>1...Ke3 2.Be4 Kf2 3.Kb2 Ke2 4.Ka2 Kd2 5.Kb2 >> = (0.17) Depth: 8/11 00:00:00 13kN >>1...Ke3 2.Be4 Kf2 3.Kb2 Ke2 4.Ka2 Kd2 5.Kb2 Ke3 >> ² (0.27) Depth: 9/12 00:00:00 18kN >>1...Nxb3 >> = (-0.23) Depth: 9/12 00:00:00 26kN >>1...Nxb3 2.Kxb3 Kxd3 3.Bb7 a5 4.Bd5 Kd2 5.Be4 >> -+ (-1.55) Depth: 9/12 00:00:00 35kN >>1...Nxb3 2.Kxb3 Kxd3 3.Bb7 a5 4.Bd5 Kd2 5.Bf3 d3 6.Be4 >> -+ (-1.55) Depth: 10/15 00:00:00 46kN >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.Bh3 d3 5.Bf5 Ke3 6.Bxd3 Kxd3 >> -+ (-1.70) Depth: 11/16 00:00:00 85kN >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.a5 d3 5.Kb2 Ke3 6.Bxd3 Kxd3 7.Kb3 >> -+ (-1.70) Depth: 12/20 00:00:00 143kN, tb=2 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.Bh3 d3 5.Bf5 a5 6.Kb2 Ke3 7.Bxd3 Kxd3 8.Kb3 >> -+ (-1.76) Depth: 13/23 00:00:01 284kN, tb=2 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.Bh3 d3 5.Bf5 a5 6.Kb2 Ke3 7.Bxd3 Kxd3 8.Kb3 >>Kd4 >> -+ (-1.76) Depth: 14/23 00:00:01 541kN, tb=6 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.Bh3 d3 5.Bf5 a5 6.Kb2 Ke3 7.Bxd3 Kxd3 8.Kb3 >>Kd4 >> -+ (-2.16) Depth: 15/25 00:00:03 1346kN, tb=40 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.a5 d3 5.Kb2 Ke3 6.Bxd3 Kxd3 7.Kb3 Kd2 8.Kb2 >>Ke3 9.Kb3 Kd3 >> -+ (-1.70) Depth: 16/30 00:00:05 2415kN, tb=61 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.a5 d3 5.Bxd3 Kxd3 6.Ka4 Kd2 7.Kb3 Ke3 8.Kc2 >>Ke2 9.Kb3 Kd2 10.Ka4 >> -+ (-1.90) Depth: 17/30 00:00:08 4731kN, tb=149 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.a5 d3 5.Kb2 Ke3 6.Bh3 Kf2 7.Bg4 Ke1 8.Bf5 d2 >>9.Bg4 >> -+ (-1.80) Depth: 18/34 00:00:14 8139kN, tb=265 >>1...Nxb3 2.Kxb3 Kxd3 3.Bf1+ Kd2 4.a5 d3 5.Kb2 Ke3 6.Bh3 Kf2 7.Bg4 Ke1 8.Bf5 Ke2 >> -+ (-1.80) Depth: 19/34 00:00:27 14842kN, tb=654 >>1...Nxb3 2.Kxb3 Kxd3 3.a5 Ke3 4.Kb2 d3 5.Bh3 Kf2 6.Bg4 Ke3 7.Bh3 >> = (0.00) Depth: 20/36 00:00:47 26214kN, tb=1202 >>1...Ke3 2.Be4 Kf2 3.Kb2 Kg3 4.Kc2 Kf4 5.Kb2 Ke5 6.Bd5 Kd6 7.Ka2 Nc6 8.Kb2 Ne5 >>9.Kc2 a5 10.Be4 Nc6 11.Bd5 >> = (-0.17) Depth: 20/36 00:01:54 69295kN, tb=1551 >>1...Ke3 2.Be4 Kf4 3.Kb2 Ke5 4.Bd5 Kd6 5.Ka2 Kc7 6.Kb2 Kc8 7.Ka2 Kd7 8.Bf7 Nc6 >>9.Bg6 a5 10.Be4 Kc7 11.Bd5 Kb6 >> = (-0.17) Depth: 21/38 00:02:57 109216kN, tb=2516 >> >>(Blass, Tel-Aviv 04.04.2004) > >This is good news for my engine Elephant 1.02a: > > 0 70 0 4 Na5xb3 Kc2xb3 Ke2xd3 > 1 70 1 12 Na5xb3 Kc2xb3 Ke2xd3 > 2 70 1 33 Na5xb3 Kc2xb3 Ke2xd3 > 3 70 1 61 Na5xb3 Kc2xb3 Ke2xd3 > 4 76 1 112 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 > 5 80 1 252 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-b2 Ke4-f5 > 6 80 3 326 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-b2 Ke4-f5 > 7 78 3 521 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-c2 a6-a5 >Bf1-g2 Ke4-f5 Kc2-d2 Kf5-g4 Kd2-e2 b4-b3 Ke2-f2 > 8 74 3 1238 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-c2 Ke4-e5 >Kc2-d2 > 9 73 4 2595 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-c2 a6-a5 >Bf1-e2 Ke4-f5 Be2-f3 Kf5-f4 Bf3-h5 > 10 73 4 3037 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f1 Kd3-e4 Kb3-c2 a6-a5 >Bf1-e2 Ke4-f5 Be2-f3 Kf5-f4 Bf3-h5 >B 11 83 7 7909 Na5xb3 Kc2xb3 Ke2xd3 Kb3-b2 Kd3xc4 Bg2-f3 d4-d3 >Bf3-d1 Kc4-d4 Kb2-b3 d3-d2 Bd1-c2 c5-c4 Kb3xb4 > 11 83 12 16741 Na5xb3 Kc2xb3 Ke2xd3 Kb3-b2 Kd3xc4 Bg2-f3 d4-d3 >Bf3-d1 Kc4-d4 Kb2-b3 d3-d2 Bd1-c2 c5-c4 Kb3xb4 > 12 83 15 24629 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f3 Kd3-e3 Bf3-h5 d4-d3 >Kb3-b2 a6-a5 Kb2-c1 Ke3-d4 Bh5-f7 b4-b3 Bf7-g8 Kd4-e5 Kc1-b2 > 13 71 20 37748 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f3 Kd3-e3 Bf3-h5 d4-d3 >Kb3-b2 a6-a5 Kb2-c1 Ke3-d4 Bh5-f7 b4-b3 Bf7-g8 Kd4-e5 Kc1-b2 >B 13 83 21 38365 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f3 Kd3-e3 Bf3-h5 d4-d3 >Kb3-b2 a6-a5 Kb2-c1 Ke3-d4 Bh5-f7 b4-b3 Bf7-g8 Kd4-e5 Kc1-b2 > 13 83 21 38381 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f3 Kd3-e3 Bf3-h5 d4-d3 >Kb3-b2 a6-a5 Kb2-c1 Ke3-d4 Bh5-f7 b4-b3 Bf7-g8 Kd4-e5 Kc1-b2 > 14 71 21 39025 Na5xb3 Kc2xb3 Ke2xd3 Bg2-f3 Kd3-e3 Bf3-h5 d4-d3 >Kb3-b2 a6-a5 Kb2-c1 Ke3-d4 Bh5-f7 b4-b3 Bf7-g8 Kd4-e5 Kc1-b2 > 14 0 42 93914 Na5xb3 Kc2xb3 Ke2xd3 Bg2-b7 a6-a5 Kb3-b2 Kd3xc4 >Bb7-c6 Kc4-d3 Bc6-b5 Kd3-e4 Bb5-f1 Ke4-f5 Bf1-d3 Kf5-e5 Bd3-b5 Ke5-e4 Bb5-f1 >Ke4-f5 Bf1-d3 Kf5-e5 >B 15 10 173 453565 Na5xb3 Kc2xb3 Ke2xd3 Bg2-b7 a6-a5 Kb3-b2 Kd3xc4 >Bb7-g2 Kc4-d3 Bg2-f1 Kd3-e3 Kb2-c2 Ke3-f2 Bf1-h3 d4-d3 Kc2xd3 Kf2-f3 Bh3-f1 > 15 10 385 1023820 Na5xb3 Kc2xb3 Ke2xd3 Bg2-b7 a6-a5 Kb3-b2 Kd3xc4 >Bb7-g2 Kc4-d3 Bg2-f1 Kd3-e3 Kb2-c2 Ke3-f2 Bf1-h3 d4-d3 Kc2xd3 Kf2-f3 Bh3-f1 > 15 42 537 1406343 Ke2-f2 Bg2-d5 Kf2-g3 Bd5-e6 Na5-c6 Be6-d5 Nc6-e5 >a4-a5 Kg3-f2 Kc2-d2 Ne5-f3 Kd2-d1 Kf2-e3 Bd5-e4 Nf3-d2 Kd1-e1 > 16 41 581 1530067 Ke2-f2 Bg2-d5 Kf2-g3 Bd5-e6 Na5-c6 Be6-d5 Nc6-e5 >a4-a5 Kg3-f2 Bd5-e4 Kf2-e3 Be4-f5 Ne5-f3 Bf5-d7 Nf3-e5 Bd7-f5 Ne5-f3 Bf5-d7 >Nf3-e5 Bd7-f5 Ne5-f3 Bf5-d7 Nf3-e5 > 16 51 668 1774136 Ke2-e3 Bg2-d5 Ke3-f4 Bd5-g2 Kf4-e5 Bg2-h3 Na5-c6 >Bh3-g2 Ke5-d6 Bg2-h3 a6-a5 Bh3-c8 Nc6-e5 Bc8-b7 Kd6-e6 Kc2-d2 > 17 41 675 1788926 Ke2-e3 Bg2-d5 Ke3-f4 Bd5-g2 Kf4-e5 Bg2-h3 Na5-c6 >Bh3-g2 Ke5-d6 Bg2-h3 a6-a5 Bh3-c8 Nc6-e5 Bc8-b7 Kd6-e6 Kc2-d2 > 17 0 742 1982699 Ke2-e3 Bg2-e4 Ke3-f4 Be4-a8 Kf4-e5 Ba8-g2 Ke5-f4 >Bg2-a8 Kf4-e5 Ba8-g2 Ke5-f4 Bg2-a8 Kf4-e5 Ba8-g2 Ke5-f4 Bg2-a8 Kf4-e5 Ba8-g2 >Ke5-f4 Bg2-a8 Kf4-e5 Ba8-g2 Ke5-f4 Bg2-a8 >B 18 10 825 2216179 Ke2-e3 Bg2-e4 Ke3-f4 Be4-a8 Kf4-e5 Ba8-d5 Ke5-d6 >Kc2-d1 Na5xb3 Bd5-c6 > 18 7 825 2216607 Ke2-e3 Bg2-e4 Ke3-f4 Be4-a8 Kf4-e5 Ba8-d5 Ke5-d6 >Kc2-d1 Na5xb3 Bd5-c6 > 18 10 828 2226749 Ke2-e3 Bg2-e4 Ke3-f4 Be4-a8 Kf4-e5 Ba8-d5 Ke5-d6 >Kc2-d1 Na5xb3 Bd5-c6 > 19 0 834 2241994 Ke2-e3 Bg2-e4 Ke3-f4 Be4-a8 Kf4-e5 Ba8-d5 Ke5-d6 >Kc2-d1 Na5xb3 Bd5-c6 > 19 0 846 2278862 Ke2-f2 Bg2-e4 Kf2-e3 Be4-g2 Ke3-f4 Bg2-h1 Kf4-e5 >Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 >Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 > 20 0 868 2347839 Ke2-f2 Bg2-e4 Kf2-e3 Be4-a8 Ke3-f4 Ba8-d5 Kf4-e5 >Bd5-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 >Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 Bh1-g2 Ke5-f4 Bg2-h1 Kf4-e5 >B 21 10 1104 3058671 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Be4-g6 Kf4-e5 >Kb2-a2 Na5-c6 a4-a5 Nc6xa5 Ka2-b2 > 21 10 1110 3075495 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Be4-g6 Kf4-e5 >Kb2-a2 Na5-c6 a4-a5 Nc6xa5 Ka2-b2 > 22 0 1273 3545251 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Be4-g6 Kf4-e5 >Kb2-a2 Na5-c6 a4-a5 Nc6xa5 Ka2-b2 > 22 0 1312 3650856 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 >Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 >Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 > 23 0 1437 4030313 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 >Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 >Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 Kb2-c2 Kg4-g3 Kc2-b2 Kg3-g4 >Kb2-c2 >B 24 10 1998 5673751 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Kb2-c2 Kf4-e5 >Be4-h7 Na5-c6 Kc2-d2 a6-a5 Bh7-g8 Nc6-e7 Kd2-e2 > 24 0 2018 5725407 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Kb2-c2 Kf4-e5 >Be4-h7 Na5-c6 Kc2-d2 a6-a5 Bh7-g8 Nc6-e7 Kd2-e2 > 24 10 2050 5822607 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Kb2-c2 Kf4-e5 >Be4-h7 Na5-c6 Kc2-d2 a6-a5 Bh7-g8 Nc6-e7 Kd2-e2 > 25 0 2070 5876000 Ke2-f2 Bg2-e4 Kf2-g3 Kc2-b2 Kg3-f4 Kb2-c2 Kf4-e5 >Be4-h7 Na5-c6 Kc2-d2 a6-a5 Bh7-g8 Nc6-e7 Kd2-e2 > 25 0 82917 218810704 Na5xc4 b3xc4 Ke2-f2 Bg2-d5 a6-a5 Kc2-b2 Kf2-e2 >Bd5-f7 Ke2xd3 Bf7-d5 Kd3-e3 Kb2-b1 d4-d3 Kb1-c1 d3-d2 Kc1-d1 b4-b3 Bd5-e6 >Ke3-d3 Be6-d7 Kd3xc4 Bd7-e6 Kc4-b4 Kd1xd2 c5-c4 Be6xc4 Kb4xc4 Kd2-c1 b3-b2 >Kc1xb2 Kc4-b4 Kb2-c2 > 26 0 92250 244143233 Na5xc4 b3xc4 Ke2-f2 Bg2-d5 a6-a5 Kc2-b2 Kf2-e2 >Bd5-f7 Ke2xd3 Bf7-d5 Kd3-e3 Kb2-b1 d4-d3 Bd5-e6 d3-d2 Kb1-c2 b4-b3 Kc2-d1 >Ke3-d3 Be6-h3 Kd3xc4 Kd1-e2 d2-d1Q Ke2-f2 > 27 0 111159 295793575 Na5xc4 b3xc4 Ke2-f2 Bg2-d5 a6-a5 Kc2-b2 Kf2-e2 >Bd5-f7 Ke2xd3 Bf7-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 >Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 >Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 > 28 0 133037 359333936 Na5xc4 b3xc4 Ke2-f2 Bg2-d5 a6-a5 Kc2-b2 Kf2-e2 >Bd5-f7 Ke2xd3 Bf7-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 >Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 >Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 > 29 0 173728 479505417 Na5xc4 b3xc4 Ke2-f2 Bg2-d5 a6-a5 Kc2-b2 Kf2-e2 >Bd5-f7 Ke2xd3 Bf7-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 >Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 >Be6-d5 Kd3-e3 Bd5-e6 Ke3-d3 Be6-d5 Kd3-e3 Bd5-e6 > >Harald Here is the pawn endgame that programs have problems to evaluate(of course they can see by search that black is winning after 11...Kxd1 but it does not help much in the root position unless they search very deep from it) [Event "40'/40"] [Site "Tel-Aviv"] [Date "????.??.??"] [Round "?"] [White "New game"] [Black "?"] [Result "*"] [SetUp "1"] [FEN "8/8/p7/n1p5/PpPp4/1P1P4/2K1k1B1/8 b - - 0 1"] [PlyCount "21"] [TimeControl "40/2400:0/0:0/0"] 1... Nxb3 2. Kxb3 Kxd3 3. Bf1+ Kd2 4. a5 d3 5. Kb2 Ke3 6. Bh3 Ke2 7. Bg4+ Ke1 8. Kc1 d2+ 9. Kc2 b3+ 10. Kxb3 d1=Q+ 11. Bxd1 Kxd1 * [D]8/8/p7/P1p5/2P5/1K6/8/3k4 w - - 0 12
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