Is this a draw?

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Adam Hair
Posts: 3226
Joined: Wed May 06, 2009 10:31 pm
Location: Fuquay-Varina, North Carolina

Is this a draw?

Post by Adam Hair »

[pgn]
[Event "Gaviota_Arasan_Match"]
[Site "adam5-S45"]
[Date "2014.05.31"]
[Round "9"]
[White "Gaviota 1.0 64-bit"]
[Black "Arasan 17.2 64-bit"]
[Result "0-1"]
[BlackElo "2200"]
[ECO "B97"]
[Opening "Sicilian"]
[Time "02:12:50"]
[Variation "Najdorf, Poisoned Pawn, 10.e5 dxe5 11.fxe5 Nfd7 12.Bc4"]
[WhiteElo "2200"]
[TimeControl "1800+15"]
[Termination "adjudication"]
[PlyCount "135"]
[WhiteType "program"]
[BlackType "program"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8.
Qd2 Qxb2 9. Rb1 Qa3 10. e5 h6 11. Bh4 dxe5 12. fxe5 g5 13. exf6 gxh4 14.
Be2 Qa5 15. O-O Nd7 16. Kh1 Qg5 17. Rf4 e5 18. Nd5 exd4 19. Qxd4 Bc5 20.
Qe4+ {(20.Qe4+ Kd8 21.Rf5 Re8 22.Qxe8+ Kxe8 23.Rxg5 hxg5 24.Nc7+ Kf8
25.Nxa8 Nxf6 26.Bf3 b5 27.Nc7 Bd6 28.Nd5 Nxd5 29.Bxd5 Bf5 30.Rf1 <TT>)
+0.40/20 152} Kd8 21. Rf5 {(21.Rf5 Re8 22.Qxe8+ <TT>) +0.49/20 83} Re8 22.
Qxe8+ {(22.Qxe8+ Kxe8 23.Rxg5 hxg5 24.Nc7+ Kf8 25.Nxa8 <TT>) +0.50/21 142}
Kxe8 23. Rxg5 {(23.Rxg5 hxg5 24.Nc7+ Kd8 25.Nxa8 Nxf6 26.Bf3 b5 27.Rd1+ Ke7
<TT>) +0.44/24 76} hxg5 24. Nc7+ {(24.Nc7+ Kd8 25.Nxa8 Nxf6 26.Bf3 b5
27.Rd1+ Ke7 28.Nc7 Bb6 <>> tb=7) +0.51/24 59} Kd8 25. Nxa8 {(25.Nxa8 Nxf6
26.Bf3 b5 27.Rd1+ Ke7 <TT> tb=5) +0.46/24 74} Nxf6 26. Bf3 {(26.Bf3 b5
27.Rd1+ Ke7 28.Nc7 Bb6 29.Re1+ Kd6 30.Ne8+ Nxe8 31.Rxe8 Be6 32.Rb8 Bc7
33.Rg8 f6 <TT> tb=83) +0.53/23 144} b5 27. Rd1+ {(27.Rd1+ Ke7 28.Nc7 <TT>)
+0.53/21 68} Ke7 28. Nc7 {(28.Nc7 Bd6 29.Re1+ Kd8 <TT> tb=2) +0.53/22 66}
Bb6 29. Re1+ {(29.Re1+ Kd6 30.Ne8+ Nxe8 31.Rxe8 Be6 32.Rb8 Bc7 33.Ra8 a5
34.Ra6+ Ke5 35.Ra7 Kd6 36.a3 f5 37.Be2 Bd7 <>> tb=60) +0.56/23 87} Kd6
{(Kd6 Ne8+ Nxe8 Rxe8 Be6 Rb8 Bc7 Ra8 a5 Ra6+ Ke5 Be2 h3 Bxb5 hxg2+ Kxg2
Bxa2 c4 Bb3 Ra7 Kd6 h3 f5 Kf1 Ba2 Ke1 Bb3) -0.40/27 76} 30. Ne8+ Nxe8
{(Nxe8 Rxe8 Be6 Ra8 a5 Rb8 Kc5 Rg8 f6 Rf8 f5 Be2 h3 gxh3 Kd6 Bf3 b4 Kg2 Ke7
Rb8 Bc7 Rb7 Kd6 Ra7 Bd7 Kg3 Bb6) -0.60/27 51} 31. Rxe8 Be6 {(Be6 Ra8 a5 Rb8
Kc5 Rg8 f6 Rf8 f5 Be2 h3 gxh3 Kd6 Bf3 b4 Kg2 Bc7 Kf2 Ke7 Ra8 Bxa2 h4 Bb6+
Ke1 gxh4 Rb8 Bc7) -0.52/27 74} 32. Rb8 {(32.Rb8 Bc7 33.Ra8 a5 34.Ra6+ Ke5
35.Be2 Bxa2 36.Bxb5 <TT> tb=246) +0.60/24 18} Bc7 {(Bc7 Ra8 a5 Ra6+ Ke5 Be2
h3 Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Rg6 g4 h3 gxh3+ Kxh3 Bd6 Rg7 Bb3 Ra7 Bb4 c5
Bxc5 Rxa5 Bb6 Ra6 Bc5 Ra8) -0.40/27 72} 33. Ra8 a5 {(a5 Ra6+ Ke5 Be2 h3
Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Rg6 g4 h3 gxh3+ Kxh3 Bd6 Rg1 Bb3 Ra1 Bb4 c5 Be6
c6 f4+ Kg2 Bc3 Rd1 Bd5+ Kf2 Bd4+ Ke1) -0.36/26 91} 34. Ra6+ Ke5 {(Ke5 Rc6
Bd6 Be2 Bxa2 Rb6 b4 Rb5+ Kf4 Rxa5 Be6 Bd3 Bc7 Rb5 Bd6 h3 f5 Be2 Be7 Ra5 Bd6
Bf3 Bc4 Ra7 Bc5 Rd7) -0.40/26 68} 35. Ra7 {(35.Ra7 Kd6 36.Ra6+ Ke5 <TT>
tb=908) +0.51/24 10} Kd6 {(Kd6 a3 Bd7) -0.36/26 67} 36. Ra6+ Ke5 {(Ke5 Be2
h3 Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Kf2 g4 Rc6 Bb8 Rc5+ Kf6 Kg2 Bf4 Bc6 Bd2 Bd5
Bb4 Rb5 f4 Kf2 Ke5 Bf7+ Kd4 Rb7 Bc5) -0.32/27 65} 37. Ra7 Kd6 {(Kd6 a3 Bd7
h3 Bb6 Ra6 Kc5 Ra8 Kd6 Bh5 f6 c3 Bc6 Rc8 Bd7 Rf8 Ke7 Ra8 a4 Bg4 Bxg4 hxg4
Kd6 Rb8 Kc6 Rf8) -0.37/27 64} 38. a3 Bd7 {(Bd7 h3 Bb6 Ra6 Kc7 Ra8 f6 c3 Kd6
Rf8 Ke7 Rb8 Bc7 Ra8 a4 Ra7 Kd8 Be2 Bf4 c4 bxc4 Bxc4 Be3 Rb7 Bc6) -0.37/25
108} 39. Ra6+ {(39.Ra6+ Kc5 40.h3 f5 41.Ra7 Kd6 42.Be2 a4 43.Bd3 Kc6
44.Bxb5+ Kb6 45.Bxa4 Kxa7 46.Bxd7 f4 47.Kg1 Kb6 48.Kf2 Bd8 49.Kf3 Kc5 <>>
tb=850) +0.49/23 14} Kc5 {(Kc5 h3 Bb6 Ra8 Bc7 Ra7 Kd6 Bg4 Bc6 Be2 a4 c3 f5
Bd3 f4 Be2 Bb6 Rg7 Bd8 Kg1 Bd7 c4 bxc4 Bxc4 Bf6 Rh7 Bc6) -0.40/28 60} 40.
Ra7 {(40.Ra7 Kd6 41.Ra6+ <TT> tb=3459) +0.49/25 40} Kd6 {(Kd6 h3 Bb6 Rb7
Bc5 Bg4 f5 Be2 b4 axb4 Bxb4 Bb5 Be6 Rg7 Bd2 Ba4 Be3 Kh2 Bd5 c3 Ke5 Kh1 Be4
Rd7 g4 hxg4 fxg4) -0.28/27 25} 41. Ra6+ {(41.Ra6+ Kc5 42.Ra7 <TT> tb=3006)
+0.49/25 79} Kc5 {(Kc5 h3 Bb6 Ra8 Kd6 c3 a4 Be2 Bc5 Ra6+ Kc7 Rf6 Bxa3 Rxf7
Kd6 Rg7 Bc1 Rxd7+ Kxd7 Bxb5+ Kd6 Bxa4 Kc5 Kg1 Be3+ Kf1 Bd2 Kf2 Bxc3 Ke3
Kc4) -0.44/28 58} 42. h3 {(42.h3 a4 43.Ra7 Kd6 44.Be2 f5 45.c3 Kc6 46.c4
Kb6 47.Ra8 bxc4 48.Bxc4 g4 49.Rh8 Bg3 50.Rh5 gxh3 51.gxh3 Bd6 52.Rxh4 Bxa3
53.Rh7 tb=1500) +0.45/23 32} Bb6 {(Bb6 Ra8 Kd6 c3 a4 Be2 Bc5 Ra6+ Kc7 Rf6
Bxa3 Rxf7 Kd6 Rg7 Bc1 Rxd7+ Kxd7 Bxb5+ Kd6 Bxa4 Kc5 Kg1 Kc4 Kf2 Bf4 Bc6
Kxc3 Ke2 Bg3) -0.36/27 40} 43. Ra8 {(43.Ra8 b4 44.axb4+ Kxb4 45.c3+ Kc5
46.Bh5 Be6 <TT> tb=301) +0.33/22 69} Kd6 {(Kd6 Be2 b4 axb4 axb4 Bc4 f6 Ra1
Kc5 Be2 Kd5 Ra6 Kc5 Bd3 f5 Ra8 Kd6 Rg8 Be3 Rf8 Ke5 Rd8 Be6 Re8 Kd6 Bc4)
-0.36/27 56} 44. Bh5 {(44.Bh5 Bc6 45.Rg8 f6 46.Rf8 Ke7 47.Rc8 Bd7 48.Ra8 a4
49.Be2 Kd6 50.Rf8 Bd4 51.Bg4 Ke7 52.Rg8 Bxg4 53.hxg4 Bb2 54.Rb8 <<> tb=726)
+0.44/22 65} f6 {(f6 Be2 Bc6 Rf8 Ke7 Rc8 Kd6 Bf3 Bd7 Rc3 Bc5 Rd3+ Kc7 Be2
Bc6 Rb3 b4 axb4 Bxb4 Rb1 f5 Bf3 Bd7 Bd5 Kd6 c4 Ke5) -0.20/27 55} 45. Be2
{(45.Be2 Bc6 46.Rf8 Bd4 47.Rd8+ <TT> tb=153) +0.20/21 67} Bc6 {(Bc6 Rf8 Bd4
Rd8+ Kc5 Rc8 Kb6 Bf3 Bd7 Rd8 Kc7 Rf8 a4 Be2 Bc3 Rf7 Kd6 Bg4 Be8 Rb7 Bc6 Rb8
Be5 Bf3 Bxf3 gxf3 Kc5 Rc8+ Kd5) -0.13/27 1} 46. Rf8 {(46.Rf8 Bd4 47.Rd8+
Kc5 48.Rc8 Kd6 49.Bf3 Bd7 50.Rd8 Kc7 51.Rf8 a4 52.Bg4 Bc6 <TT> tb=432)
+0.07/24 58} Bd4 {(Bd4 Bf3 Bd7 Bg4 Bc6 Rd8+ Kc5 Rc8 Kd6 Bf3 Bd7 Ra8 a4 Bg4
Bc6 Rd8+ Kc5 Bf3 Bxf3 gxf3 Be5 Rc8+ Kd5 c3 Bd6 Rd8 Kc6 Re8 Bxa3) -0.12/27
54} 47. Bf3 {(47.Bf3 Bxf3 48.gxf3 a4 49.Kg2 Bb2 50.f4 gxf4 51.Kf3 Kd5
52.Rb8 Kc4 53.Rc8+ Kd4 54.Rd8+ Kc3 55.Rc8+ Kd4 tb=1354) 0.00/24 41} Bd7
{(Bd7 Rd8 Kc7 Rf8 Kd6) 0.00/29 27} 48. Bg4 {(48.Bg4 Bc6 49.Rd8+ Kc5 50.Rc8
Kd6 51.Bf3 Bd7 52.Ra8 a4 53.Ra6+ Kc5 54.Ra7 Kd6 55.Ra5 Kc5 56.Ra6 Bb2
57.Ra7 Kd6 58.Ra6+ Kc5 tb=1241) 0.00/26 80} Bxg4 {(Bxg4 hxg4 Kc5 Ra8 a4 Rf8
Kd5 Rd8+ Kc5 Ra8 Be5 Rc8+ Kd4 Ra8 Kc3 Ra5 Kc4 Ra8 Kc5) 0.00/31 53} 49. hxg4
{(49.hxg4 a4 50.Kh2 Bb2 51.Kh3 Kd5 52.Rb8 Kc4 53.Rc8+ Kd4 54.Rd8+ Kc4
55.Rc8+ tb=387) 0.00/23 7} Kc6 {(a4 Rd8+ Kc5 Rc8+ Kd5 Rd8+ Kc5) 0.00/28 66}
50. Kh2 {(50.Kh2 a4 51.Kh3 Bb2 52.Rc8+ Kb7 53.Rc5 Kb6 54.Rf5 Kc6 55.g3 hxg3
56.Kxg3 b4 57.Ra5 bxa3 58.Rxa4 Kb5 59.Ra8 Kb4 60.Kf3 Kc3 61.Rc8+ Kd4
62.Rd8+ Kc3 <>> tb=9121) 0.00/24 56} Bb2 {(Bb2 Kg1 a4 Kf2 Bxa3 Rxf6+ Bd6
Rf7 a3 Kf3 Kc5 Ke2 Kc4 Kd1 Bf4 Rf6 b4 Rc6+ Kd4 Ke2 Be5 Kf3 Kd5 Ra6 Bd4 Ke2
Kc4 Kf3 Bc5) +0.18/28 50} 51. Kg1 {(51.Kg1 a4 52.Kf2 Bxa3 53.Rxf6+ Bd6
54.Kf3 a3 55.Rf7 Kc5 56.Ra7 b4 57.Ra8 Kc4 58.Rc8+ Bc5 59.Ra8 Bg1 60.Rc8+
Kd4 61.Rc6 Be3 62.Ke2 Bc1 63.Rb6 Kc5 64.Rb8 tb=11791) -0.32/24 58} a4 {(a4
Kf2) +0.36/28 4} 52. Kf2 {(52.Kf2 Bxa3 53.Rxf6+ Bd6 54.Kf3 a3 55.Rf7 <>>
tb=4816) -0.71/23 47} Bxa3 {(Bxa3 Rxf6+ Bd6 Ke2 a3 Rf7 Bc7 Rf6+ Kb7 Rf3 b4
Rb3 Bd6 Rb1 Kc6 Ra1 Kc5 Kd3 Be5 Ra2 Kd5 Ke3 Kc4 Kd2 Bf4+ Kd1 Be3 Ra1 Bd4
Ra2 b3) +0.73/28 49} 53. Rxf6+ {(53.Rxf6+ Bd6 54.Rf7 a3 55.Kf3 Kc5 56.Rd7
Bb8 57.Rd3 b4 58.Ke4 Bf4 59.Rd8 b3 60.cxb3 Kb4 61.Ra8 Kxb3 <TT> tb=15370)
-0.75/24 16} Bd6 {(Bd6 Rf7 a3 Ke2 Bc7 Rf6+ Kb7 Rf3 b4 Rb3 Bd6 Rb1 Kc6 Ra1
Be5 Ra2 Kc5 Kd3 Kd5 Ke3 Kc4 Ke4 Bf4 Kf3 b3 cxb3+ Kxb3 Ra1 a2 Rf1 Bd6 Re1)
+0.75/29 45} 54. Rf7 {(54.Rf7 a3 55.Kf3 Kc5 56.Rd7 Bb8 57.Rd3 b4 58.Ke4 Bf4
59.Rd8 b3 60.cxb3 Kb4 61.Ra8 Kxb3 62.Ra7 Bd2 63.Kf5 <TT> tb=20648) -0.66/24
14} a3 {(a3 Ke2 Kb6 Rf6 Kc5 Rf7 Kc4 Kd1 Bf4 Rf6 b4 Rc6+ Kd5 Rb6 Kc5 Re6 Kd4
Ra6 Ke3 c3 bxc3 Kc2 Kf2 Kxc3 Kxg2 Rxa3 h3 Kd4 h2 Ra2+ Kf3 Ra1) +1.32/29 47}
55. Kf3 {(55.Kf3 Kc5 56.Ke2 Kc4 57.Kd1 Bf4 58.Rf6 b4 59.Rc6+ Kd4 60.c3+
bxc3 61.Kc2 Bd2 62.Ra6 Ke4 63.Rxa3 Kf4 <TT> tb=84250) -1.97/26 135} Kc5
{(Kc5 Ke2 Kc4 Kd1 Bf4 Rd7 b4 Rd8 b3 cxb3+ Kc3 Ra8 Kb2 b4 a2 Ke2 Bd6 b5 Bc5
Rxa2+ Kxa2 Kd3 Kb1 Ke4 Kc2 Kf5 Be3 b6 Bxb6 Kxg5 Bf2) +1.48/29 46} 56. Rd7
{(56.Rd7 Kc6 57.Rf7 Kc5 <TT> tb=51388) -1.97/25 72} Bb8 {(Bb8 Rd3 b4 Ke4
Bc7 Rd1 Kc4 Ra1 Bf4 Rb1 a2 Ra1 b3 cxb3+ Kxb3 Kf5 Kb2 Rxa2+ Kxa2 Ke4 Kb2 Kd3
Be5 Ke4 Bc7 Kf5 Bf4 Kg6 Kc3 Kh5 Kd3) +3.64/29 46} 57. Rd3 {(57.Rd3 b4
58.Ke4 Bc7 59.Rd1 Kc4 60.Ra1 Kc3 <TT> tb=19916) -4.37/24 82} b4 {(b4 Ke4
Bc7 Rd7 a2 Rd1 Kc4 Ra1 b3 cxb3+ Kxb3 Re1 Bf4 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kd5
Kb2 Ke4 Kc3 Kf3 Kd4 Ke2 Ke4 Kf2 Be5 Ke2 Bd4 Kd2) +4.64/29 0} 58. Ke4
{(58.Ke4 :-> tb=12488) -4.18/24 40} Bc7 {(Bc7 Rd1 Kc4 Ra1 Bf4 Ra2 b3 cxb3+
Kxb3 Ra1 a2 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kf3 Kb2 Kf2 Kb3 Ke2 Kc3 Kf2 Kd2 Kg1
Bb8 Kh1 Be5) +4.69/29 45} 59. Rd1 Kc4 {(Kc4 Ra1 Bf4 Ra2 b3 cxb3+ Kxb3 Ra1
a2 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kf3 Kb2 Kf2 Kc2 Ke1 Kd3 Kf2 Bg3+ Kg1 Ke2 Kh1
Ke3 Kg1 Kf4 Kf1 Kxg4) +4.76/28 31} 60. Ra1 {(60.Ra1 Bb6 61.Ra2 Bd4 62.Kf3
Bb2 63.Ke2 Kc3 64.Kd1 b3 65.cxb3 Kxb3 66.Rxa3+ Bxa3 67.Ke2 Kc4 68.Ke3 Kd5
69.Kd3 Bc1 70.Kc3 Ke4 71.Kc4 Bf4 tb=59113) -5.22/24 57} Bb6 {(Bb6 Ra2 Bd4
Kf3 Bb2 Ke2 b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd2 Bd6 Kd3 Bf4 Ke2 Kc3 Kf3 Kd3 Kf2
Bg3+ Kg1 Ke2 Kh1 Be5 Kg1 Bc7 Kh1 Kf2 g3 Kxg3) +5.89/29 44} 61. Ra2 {(61.Ra2
Bd4 62.Kf3 Bb2 63.Ke2 Kc3 64.Kd1 b3 65.cxb3 Kxb3 66.Rxa3+ Bxa3 67.Ke2 Kc4
68.Ke3 Kd5 69.Kd3 Bc1 70.Ke2 Ke4 71.Kf2 Kf4 72.Kg1 Kxg4 <<> tb=45230)
-6.27/25 68} Bd4 {(Bd4 Kf3) +7.48/31 0} 62. Kf3 {(62.Kf3 :-< tb=57483)
-9.26/27 121} Bb2 {(Bb2 Ke2 b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd3 Bc5 Ke4 Kc2 Kf5
Be3 Ke4 Kd2 Kf3 Bc5 Ke4 Ke2 Kd5 Be3 Kc4 Kf2 Kd3 Kxg2 Kxe3 h3 Ke4 h2 Kf5
h1=Q Kxg5 Qh3) +9.77/31 20} 63. Ke2 b3 {(b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd3 Bb2
Ke3 Kc2 Kf3 Ba3 Ke3 Bc5+ Ke2 Kc3 Kf3 Kd2 Ke4 Kd1 Kf5 Be3 Ke4 Bc1 Kd4 Bb2+
Kc4 Ke2 Kb3 Bc1 g3 hxg3 Kc2 Bf4) +16.54/30 0} 64. cxb3+ {(64.cxb3+ Kxb3
65.Rxa3+ Bxa3 66.Kd2 Bb2 67.Kd3 Bc1 68.Ke4 Kc4 69.Kf5 Kd3 70.Kf6 Ke2 71.Kg6
Kf1 72.Kf7 Kf2 73.Ke8 Kxg2 74.Kd8 h3 75.Kc8 h2 76.Kd7 <<> tb=84806)
-18.17/25 56} Kxb3 {(Kxb3 Rxa3+ Bxa3 Kd3 Bb2 Ke3 Kc2 Kf2 Bd4+ Ke2 Bc5 Ke1
Kd3 Kd1 Bb4 Kc1 Bc3 Kb1 Bd4 Kc1 Be3+ Kb1 Ke2 Kb2 Bf4 Ka2 Kf1 g3 hxg3 Kb3 g2
Ka3 g1=Q) +16.56/30 16} 65. Rxa3+ Bxa3 {(Bxa3 Kd3 Bc5 Ke2 Kc2 Kf1 Kd3 Ke1
Ke3 Kf1 Kf4 Ke2 Kg3 Kd3 Kxg2 Ke4 h3 Kf5 Be3 Ke4 Bf4 Kd5 h2 Ke6 h1=Q Kf7 Qh6
Ke7 Qg7+ Ke8 Be3) +17.36/29 2} 66. Kd3 {(66.Kd3 Bc1 67.Ke2 Kc3 68.Ke1 Kd4
69.Kd1 Ke3 70.Ke1 Kf4 71.Kf2 Kxg4 72.Ke2 Kg3 73.Ke1 Kxg2 <TB> -Mate_19
tb=273075) -M19/26 23} Bc5 {(Bc5 Ke4) +17.58/29 44} 67. Ke4 {(67.Ke4 Kc2
68.Kf5 Be3 69.Ke4 Bc1 70.Kf3 Kd3 71.Kf2 <TT> -Mate_20 tb=87793) -M20/25 27}
Kc3 {(Kc3 Kf5) +M14/28 0} 68. Kf5 {(68.Kf5 Be7 69.Ke4 Kd2 70.Kd5 Ke3 71.Ke6
Kf4 72.Kxe7 Kxg4 <TT> -Mate_18 tb=19224) -M18/24 26 Arena Adjudication}
0-1[/pgn]

[D]8/8/2kb1R2/1p4p1/p5Pp/8/2P2KP1/8 w - - 1 54

Gaviota chose Kf3 and lost. On my old server, Komodo 7 and Stockfish 5 say that Ke3 draws:

Code: Select all

FEN&#58; 8/8/2kb1R2/1p4p1/p5Pp/8/2P2KP1/8 w - - 1 54 

Stockfish_5_64-bit&#58;

 42/66	04&#58;51	 530,705,856	1,821,278	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-e1 Bd6-c7 Re1-e6 Bc7-a5 Re6-e1 Ba5-b4 Re1-d1 Bb4-e7 Rd1-d7 a2-a1N+ Kc2xc3 Be7-f6+ Kc3-d3 Na1-b3 Rd7-a7+ Ka3-b4 Ra7-b7+ Kb4-a4 Rb7-a7+ Nb3-a5 Kd3-e4 Bf6-c3 Ra7-d7 Bc3-b2 Rd7-c7 Na5-b3 Ke4-f5 Bb2-c1 Rc7xc1 Nb3xc1 Kf5xg5 Nc1-e2 Kg5xh4 Ka4-b5 g4-g5 Kb5-c6 g5-g6 Ne2-d4 g6-g7 Nd4-f5+ Kh4-g5 Nf5xg7 Kg5-g6 Ng7-e6 Kg6-h7 Kc6-d5 Kh7-g8 Kd5-e4 Kg8-h7


Komodo-7-64bit&#58;

  27	00&#58;57	  76,464,746	1,320,951	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-d8 Rf1-e1 Bd8-b6 Re1-e8 Bb6-a5 Re8-e1 Ba5-b4 Re1-d1 Bb4-a5 Rd1-f1
  28	01&#58;07	  87,941,403	1,301,472	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-b6 Rf1-e1 Bb6-a5 Re1-a1 Ba5-c7 Ra1-f1 Bc7-a5 Rf1-d1 Ba5-b6 Rd1-e1
  29	01&#58;24	 107,545,350	1,276,402	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-b6 Rf1-e1 Ka3-b4 Re1-a1 Kb4-a3 Ra1-e1
I think that they are right, but I am a weak chess player. Does anybody else think that Ke3 draws?
BeyondCritics
Posts: 396
Joined: Sat May 05, 2012 2:48 pm
Full name: Oliver Roese

Re: Is this a draw?

Post by BeyondCritics »

Adam Hair wrote:[pgn]
[Event "Gaviota_Arasan_Match"]
[Site "adam5-S45"]
[Date "2014.05.31"]
[Round "9"]
[White "Gaviota 1.0 64-bit"]
[Black "Arasan 17.2 64-bit"]
[Result "0-1"]
[BlackElo "2200"]
[ECO "B97"]
[Opening "Sicilian"]
[Time "02:12:50"]
[Variation "Najdorf, Poisoned Pawn, 10.e5 dxe5 11.fxe5 Nfd7 12.Bc4"]
[WhiteElo "2200"]
[TimeControl "1800+15"]
[Termination "adjudication"]
[PlyCount "135"]
[WhiteType "program"]
[BlackType "program"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8.
Qd2 Qxb2 9. Rb1 Qa3 10. e5 h6 11. Bh4 dxe5 12. fxe5 g5 13. exf6 gxh4 14.
Be2 Qa5 15. O-O Nd7 16. Kh1 Qg5 17. Rf4 e5 18. Nd5 exd4 19. Qxd4 Bc5 20.
Qe4+ {(20.Qe4+ Kd8 21.Rf5 Re8 22.Qxe8+ Kxe8 23.Rxg5 hxg5 24.Nc7+ Kf8
25.Nxa8 Nxf6 26.Bf3 b5 27.Nc7 Bd6 28.Nd5 Nxd5 29.Bxd5 Bf5 30.Rf1 <TT>)
+0.40/20 152} Kd8 21. Rf5 {(21.Rf5 Re8 22.Qxe8+ <TT>) +0.49/20 83} Re8 22.
Qxe8+ {(22.Qxe8+ Kxe8 23.Rxg5 hxg5 24.Nc7+ Kf8 25.Nxa8 <TT>) +0.50/21 142}
Kxe8 23. Rxg5 {(23.Rxg5 hxg5 24.Nc7+ Kd8 25.Nxa8 Nxf6 26.Bf3 b5 27.Rd1+ Ke7
<TT>) +0.44/24 76} hxg5 24. Nc7+ {(24.Nc7+ Kd8 25.Nxa8 Nxf6 26.Bf3 b5
27.Rd1+ Ke7 28.Nc7 Bb6 <>> tb=7) +0.51/24 59} Kd8 25. Nxa8 {(25.Nxa8 Nxf6
26.Bf3 b5 27.Rd1+ Ke7 <TT> tb=5) +0.46/24 74} Nxf6 26. Bf3 {(26.Bf3 b5
27.Rd1+ Ke7 28.Nc7 Bb6 29.Re1+ Kd6 30.Ne8+ Nxe8 31.Rxe8 Be6 32.Rb8 Bc7
33.Rg8 f6 <TT> tb=83) +0.53/23 144} b5 27. Rd1+ {(27.Rd1+ Ke7 28.Nc7 <TT>)
+0.53/21 68} Ke7 28. Nc7 {(28.Nc7 Bd6 29.Re1+ Kd8 <TT> tb=2) +0.53/22 66}
Bb6 29. Re1+ {(29.Re1+ Kd6 30.Ne8+ Nxe8 31.Rxe8 Be6 32.Rb8 Bc7 33.Ra8 a5
34.Ra6+ Ke5 35.Ra7 Kd6 36.a3 f5 37.Be2 Bd7 <>> tb=60) +0.56/23 87} Kd6
{(Kd6 Ne8+ Nxe8 Rxe8 Be6 Rb8 Bc7 Ra8 a5 Ra6+ Ke5 Be2 h3 Bxb5 hxg2+ Kxg2
Bxa2 c4 Bb3 Ra7 Kd6 h3 f5 Kf1 Ba2 Ke1 Bb3) -0.40/27 76} 30. Ne8+ Nxe8
{(Nxe8 Rxe8 Be6 Ra8 a5 Rb8 Kc5 Rg8 f6 Rf8 f5 Be2 h3 gxh3 Kd6 Bf3 b4 Kg2 Ke7
Rb8 Bc7 Rb7 Kd6 Ra7 Bd7 Kg3 Bb6) -0.60/27 51} 31. Rxe8 Be6 {(Be6 Ra8 a5 Rb8
Kc5 Rg8 f6 Rf8 f5 Be2 h3 gxh3 Kd6 Bf3 b4 Kg2 Bc7 Kf2 Ke7 Ra8 Bxa2 h4 Bb6+
Ke1 gxh4 Rb8 Bc7) -0.52/27 74} 32. Rb8 {(32.Rb8 Bc7 33.Ra8 a5 34.Ra6+ Ke5
35.Be2 Bxa2 36.Bxb5 <TT> tb=246) +0.60/24 18} Bc7 {(Bc7 Ra8 a5 Ra6+ Ke5 Be2
h3 Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Rg6 g4 h3 gxh3+ Kxh3 Bd6 Rg7 Bb3 Ra7 Bb4 c5
Bxc5 Rxa5 Bb6 Ra6 Bc5 Ra8) -0.40/27 72} 33. Ra8 a5 {(a5 Ra6+ Ke5 Be2 h3
Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Rg6 g4 h3 gxh3+ Kxh3 Bd6 Rg1 Bb3 Ra1 Bb4 c5 Be6
c6 f4+ Kg2 Bc3 Rd1 Bd5+ Kf2 Bd4+ Ke1) -0.36/26 91} 34. Ra6+ Ke5 {(Ke5 Rc6
Bd6 Be2 Bxa2 Rb6 b4 Rb5+ Kf4 Rxa5 Be6 Bd3 Bc7 Rb5 Bd6 h3 f5 Be2 Be7 Ra5 Bd6
Bf3 Bc4 Ra7 Bc5 Rd7) -0.40/26 68} 35. Ra7 {(35.Ra7 Kd6 36.Ra6+ Ke5 <TT>
tb=908) +0.51/24 10} Kd6 {(Kd6 a3 Bd7) -0.36/26 67} 36. Ra6+ Ke5 {(Ke5 Be2
h3 Bxb5 hxg2+ Kxg2 Bxa2 c4 f5 Kf2 g4 Rc6 Bb8 Rc5+ Kf6 Kg2 Bf4 Bc6 Bd2 Bd5
Bb4 Rb5 f4 Kf2 Ke5 Bf7+ Kd4 Rb7 Bc5) -0.32/27 65} 37. Ra7 Kd6 {(Kd6 a3 Bd7
h3 Bb6 Ra6 Kc5 Ra8 Kd6 Bh5 f6 c3 Bc6 Rc8 Bd7 Rf8 Ke7 Ra8 a4 Bg4 Bxg4 hxg4
Kd6 Rb8 Kc6 Rf8) -0.37/27 64} 38. a3 Bd7 {(Bd7 h3 Bb6 Ra6 Kc7 Ra8 f6 c3 Kd6
Rf8 Ke7 Rb8 Bc7 Ra8 a4 Ra7 Kd8 Be2 Bf4 c4 bxc4 Bxc4 Be3 Rb7 Bc6) -0.37/25
108} 39. Ra6+ {(39.Ra6+ Kc5 40.h3 f5 41.Ra7 Kd6 42.Be2 a4 43.Bd3 Kc6
44.Bxb5+ Kb6 45.Bxa4 Kxa7 46.Bxd7 f4 47.Kg1 Kb6 48.Kf2 Bd8 49.Kf3 Kc5 <>>
tb=850) +0.49/23 14} Kc5 {(Kc5 h3 Bb6 Ra8 Bc7 Ra7 Kd6 Bg4 Bc6 Be2 a4 c3 f5
Bd3 f4 Be2 Bb6 Rg7 Bd8 Kg1 Bd7 c4 bxc4 Bxc4 Bf6 Rh7 Bc6) -0.40/28 60} 40.
Ra7 {(40.Ra7 Kd6 41.Ra6+ <TT> tb=3459) +0.49/25 40} Kd6 {(Kd6 h3 Bb6 Rb7
Bc5 Bg4 f5 Be2 b4 axb4 Bxb4 Bb5 Be6 Rg7 Bd2 Ba4 Be3 Kh2 Bd5 c3 Ke5 Kh1 Be4
Rd7 g4 hxg4 fxg4) -0.28/27 25} 41. Ra6+ {(41.Ra6+ Kc5 42.Ra7 <TT> tb=3006)
+0.49/25 79} Kc5 {(Kc5 h3 Bb6 Ra8 Kd6 c3 a4 Be2 Bc5 Ra6+ Kc7 Rf6 Bxa3 Rxf7
Kd6 Rg7 Bc1 Rxd7+ Kxd7 Bxb5+ Kd6 Bxa4 Kc5 Kg1 Be3+ Kf1 Bd2 Kf2 Bxc3 Ke3
Kc4) -0.44/28 58} 42. h3 {(42.h3 a4 43.Ra7 Kd6 44.Be2 f5 45.c3 Kc6 46.c4
Kb6 47.Ra8 bxc4 48.Bxc4 g4 49.Rh8 Bg3 50.Rh5 gxh3 51.gxh3 Bd6 52.Rxh4 Bxa3
53.Rh7 tb=1500) +0.45/23 32} Bb6 {(Bb6 Ra8 Kd6 c3 a4 Be2 Bc5 Ra6+ Kc7 Rf6
Bxa3 Rxf7 Kd6 Rg7 Bc1 Rxd7+ Kxd7 Bxb5+ Kd6 Bxa4 Kc5 Kg1 Kc4 Kf2 Bf4 Bc6
Kxc3 Ke2 Bg3) -0.36/27 40} 43. Ra8 {(43.Ra8 b4 44.axb4+ Kxb4 45.c3+ Kc5
46.Bh5 Be6 <TT> tb=301) +0.33/22 69} Kd6 {(Kd6 Be2 b4 axb4 axb4 Bc4 f6 Ra1
Kc5 Be2 Kd5 Ra6 Kc5 Bd3 f5 Ra8 Kd6 Rg8 Be3 Rf8 Ke5 Rd8 Be6 Re8 Kd6 Bc4)
-0.36/27 56} 44. Bh5 {(44.Bh5 Bc6 45.Rg8 f6 46.Rf8 Ke7 47.Rc8 Bd7 48.Ra8 a4
49.Be2 Kd6 50.Rf8 Bd4 51.Bg4 Ke7 52.Rg8 Bxg4 53.hxg4 Bb2 54.Rb8 <<> tb=726)
+0.44/22 65} f6 {(f6 Be2 Bc6 Rf8 Ke7 Rc8 Kd6 Bf3 Bd7 Rc3 Bc5 Rd3+ Kc7 Be2
Bc6 Rb3 b4 axb4 Bxb4 Rb1 f5 Bf3 Bd7 Bd5 Kd6 c4 Ke5) -0.20/27 55} 45. Be2
{(45.Be2 Bc6 46.Rf8 Bd4 47.Rd8+ <TT> tb=153) +0.20/21 67} Bc6 {(Bc6 Rf8 Bd4
Rd8+ Kc5 Rc8 Kb6 Bf3 Bd7 Rd8 Kc7 Rf8 a4 Be2 Bc3 Rf7 Kd6 Bg4 Be8 Rb7 Bc6 Rb8
Be5 Bf3 Bxf3 gxf3 Kc5 Rc8+ Kd5) -0.13/27 1} 46. Rf8 {(46.Rf8 Bd4 47.Rd8+
Kc5 48.Rc8 Kd6 49.Bf3 Bd7 50.Rd8 Kc7 51.Rf8 a4 52.Bg4 Bc6 <TT> tb=432)
+0.07/24 58} Bd4 {(Bd4 Bf3 Bd7 Bg4 Bc6 Rd8+ Kc5 Rc8 Kd6 Bf3 Bd7 Ra8 a4 Bg4
Bc6 Rd8+ Kc5 Bf3 Bxf3 gxf3 Be5 Rc8+ Kd5 c3 Bd6 Rd8 Kc6 Re8 Bxa3) -0.12/27
54} 47. Bf3 {(47.Bf3 Bxf3 48.gxf3 a4 49.Kg2 Bb2 50.f4 gxf4 51.Kf3 Kd5
52.Rb8 Kc4 53.Rc8+ Kd4 54.Rd8+ Kc3 55.Rc8+ Kd4 tb=1354) 0.00/24 41} Bd7
{(Bd7 Rd8 Kc7 Rf8 Kd6) 0.00/29 27} 48. Bg4 {(48.Bg4 Bc6 49.Rd8+ Kc5 50.Rc8
Kd6 51.Bf3 Bd7 52.Ra8 a4 53.Ra6+ Kc5 54.Ra7 Kd6 55.Ra5 Kc5 56.Ra6 Bb2
57.Ra7 Kd6 58.Ra6+ Kc5 tb=1241) 0.00/26 80} Bxg4 {(Bxg4 hxg4 Kc5 Ra8 a4 Rf8
Kd5 Rd8+ Kc5 Ra8 Be5 Rc8+ Kd4 Ra8 Kc3 Ra5 Kc4 Ra8 Kc5) 0.00/31 53} 49. hxg4
{(49.hxg4 a4 50.Kh2 Bb2 51.Kh3 Kd5 52.Rb8 Kc4 53.Rc8+ Kd4 54.Rd8+ Kc4
55.Rc8+ tb=387) 0.00/23 7} Kc6 {(a4 Rd8+ Kc5 Rc8+ Kd5 Rd8+ Kc5) 0.00/28 66}
50. Kh2 {(50.Kh2 a4 51.Kh3 Bb2 52.Rc8+ Kb7 53.Rc5 Kb6 54.Rf5 Kc6 55.g3 hxg3
56.Kxg3 b4 57.Ra5 bxa3 58.Rxa4 Kb5 59.Ra8 Kb4 60.Kf3 Kc3 61.Rc8+ Kd4
62.Rd8+ Kc3 <>> tb=9121) 0.00/24 56} Bb2 {(Bb2 Kg1 a4 Kf2 Bxa3 Rxf6+ Bd6
Rf7 a3 Kf3 Kc5 Ke2 Kc4 Kd1 Bf4 Rf6 b4 Rc6+ Kd4 Ke2 Be5 Kf3 Kd5 Ra6 Bd4 Ke2
Kc4 Kf3 Bc5) +0.18/28 50} 51. Kg1 {(51.Kg1 a4 52.Kf2 Bxa3 53.Rxf6+ Bd6
54.Kf3 a3 55.Rf7 Kc5 56.Ra7 b4 57.Ra8 Kc4 58.Rc8+ Bc5 59.Ra8 Bg1 60.Rc8+
Kd4 61.Rc6 Be3 62.Ke2 Bc1 63.Rb6 Kc5 64.Rb8 tb=11791) -0.32/24 58} a4 {(a4
Kf2) +0.36/28 4} 52. Kf2 {(52.Kf2 Bxa3 53.Rxf6+ Bd6 54.Kf3 a3 55.Rf7 <>>
tb=4816) -0.71/23 47} Bxa3 {(Bxa3 Rxf6+ Bd6 Ke2 a3 Rf7 Bc7 Rf6+ Kb7 Rf3 b4
Rb3 Bd6 Rb1 Kc6 Ra1 Kc5 Kd3 Be5 Ra2 Kd5 Ke3 Kc4 Kd2 Bf4+ Kd1 Be3 Ra1 Bd4
Ra2 b3) +0.73/28 49} 53. Rxf6+ {(53.Rxf6+ Bd6 54.Rf7 a3 55.Kf3 Kc5 56.Rd7
Bb8 57.Rd3 b4 58.Ke4 Bf4 59.Rd8 b3 60.cxb3 Kb4 61.Ra8 Kxb3 <TT> tb=15370)
-0.75/24 16} Bd6 {(Bd6 Rf7 a3 Ke2 Bc7 Rf6+ Kb7 Rf3 b4 Rb3 Bd6 Rb1 Kc6 Ra1
Be5 Ra2 Kc5 Kd3 Kd5 Ke3 Kc4 Ke4 Bf4 Kf3 b3 cxb3+ Kxb3 Ra1 a2 Rf1 Bd6 Re1)
+0.75/29 45} 54. Rf7 {(54.Rf7 a3 55.Kf3 Kc5 56.Rd7 Bb8 57.Rd3 b4 58.Ke4 Bf4
59.Rd8 b3 60.cxb3 Kb4 61.Ra8 Kxb3 62.Ra7 Bd2 63.Kf5 <TT> tb=20648) -0.66/24
14} a3 {(a3 Ke2 Kb6 Rf6 Kc5 Rf7 Kc4 Kd1 Bf4 Rf6 b4 Rc6+ Kd5 Rb6 Kc5 Re6 Kd4
Ra6 Ke3 c3 bxc3 Kc2 Kf2 Kxc3 Kxg2 Rxa3 h3 Kd4 h2 Ra2+ Kf3 Ra1) +1.32/29 47}
55. Kf3 {(55.Kf3 Kc5 56.Ke2 Kc4 57.Kd1 Bf4 58.Rf6 b4 59.Rc6+ Kd4 60.c3+
bxc3 61.Kc2 Bd2 62.Ra6 Ke4 63.Rxa3 Kf4 <TT> tb=84250) -1.97/26 135} Kc5
{(Kc5 Ke2 Kc4 Kd1 Bf4 Rd7 b4 Rd8 b3 cxb3+ Kc3 Ra8 Kb2 b4 a2 Ke2 Bd6 b5 Bc5
Rxa2+ Kxa2 Kd3 Kb1 Ke4 Kc2 Kf5 Be3 b6 Bxb6 Kxg5 Bf2) +1.48/29 46} 56. Rd7
{(56.Rd7 Kc6 57.Rf7 Kc5 <TT> tb=51388) -1.97/25 72} Bb8 {(Bb8 Rd3 b4 Ke4
Bc7 Rd1 Kc4 Ra1 Bf4 Rb1 a2 Ra1 b3 cxb3+ Kxb3 Kf5 Kb2 Rxa2+ Kxa2 Ke4 Kb2 Kd3
Be5 Ke4 Bc7 Kf5 Bf4 Kg6 Kc3 Kh5 Kd3) +3.64/29 46} 57. Rd3 {(57.Rd3 b4
58.Ke4 Bc7 59.Rd1 Kc4 60.Ra1 Kc3 <TT> tb=19916) -4.37/24 82} b4 {(b4 Ke4
Bc7 Rd7 a2 Rd1 Kc4 Ra1 b3 cxb3+ Kxb3 Re1 Bf4 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kd5
Kb2 Ke4 Kc3 Kf3 Kd4 Ke2 Ke4 Kf2 Be5 Ke2 Bd4 Kd2) +4.64/29 0} 58. Ke4
{(58.Ke4 :-> tb=12488) -4.18/24 40} Bc7 {(Bc7 Rd1 Kc4 Ra1 Bf4 Ra2 b3 cxb3+
Kxb3 Ra1 a2 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kf3 Kb2 Kf2 Kb3 Ke2 Kc3 Kf2 Kd2 Kg1
Bb8 Kh1 Be5) +4.69/29 45} 59. Rd1 Kc4 {(Kc4 Ra1 Bf4 Ra2 b3 cxb3+ Kxb3 Ra1
a2 Rd1 Kb2 Re1 a1=Q Rxa1 Kxa1 Kf3 Kb2 Kf2 Kc2 Ke1 Kd3 Kf2 Bg3+ Kg1 Ke2 Kh1
Ke3 Kg1 Kf4 Kf1 Kxg4) +4.76/28 31} 60. Ra1 {(60.Ra1 Bb6 61.Ra2 Bd4 62.Kf3
Bb2 63.Ke2 Kc3 64.Kd1 b3 65.cxb3 Kxb3 66.Rxa3+ Bxa3 67.Ke2 Kc4 68.Ke3 Kd5
69.Kd3 Bc1 70.Kc3 Ke4 71.Kc4 Bf4 tb=59113) -5.22/24 57} Bb6 {(Bb6 Ra2 Bd4
Kf3 Bb2 Ke2 b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd2 Bd6 Kd3 Bf4 Ke2 Kc3 Kf3 Kd3 Kf2
Bg3+ Kg1 Ke2 Kh1 Be5 Kg1 Bc7 Kh1 Kf2 g3 Kxg3) +5.89/29 44} 61. Ra2 {(61.Ra2
Bd4 62.Kf3 Bb2 63.Ke2 Kc3 64.Kd1 b3 65.cxb3 Kxb3 66.Rxa3+ Bxa3 67.Ke2 Kc4
68.Ke3 Kd5 69.Kd3 Bc1 70.Ke2 Ke4 71.Kf2 Kf4 72.Kg1 Kxg4 <<> tb=45230)
-6.27/25 68} Bd4 {(Bd4 Kf3) +7.48/31 0} 62. Kf3 {(62.Kf3 :-< tb=57483)
-9.26/27 121} Bb2 {(Bb2 Ke2 b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd3 Bc5 Ke4 Kc2 Kf5
Be3 Ke4 Kd2 Kf3 Bc5 Ke4 Ke2 Kd5 Be3 Kc4 Kf2 Kd3 Kxg2 Kxe3 h3 Ke4 h2 Kf5
h1=Q Kxg5 Qh3) +9.77/31 20} 63. Ke2 b3 {(b3 cxb3+ Kxb3 Rxa3+ Bxa3 Kd3 Bb2
Ke3 Kc2 Kf3 Ba3 Ke3 Bc5+ Ke2 Kc3 Kf3 Kd2 Ke4 Kd1 Kf5 Be3 Ke4 Bc1 Kd4 Bb2+
Kc4 Ke2 Kb3 Bc1 g3 hxg3 Kc2 Bf4) +16.54/30 0} 64. cxb3+ {(64.cxb3+ Kxb3
65.Rxa3+ Bxa3 66.Kd2 Bb2 67.Kd3 Bc1 68.Ke4 Kc4 69.Kf5 Kd3 70.Kf6 Ke2 71.Kg6
Kf1 72.Kf7 Kf2 73.Ke8 Kxg2 74.Kd8 h3 75.Kc8 h2 76.Kd7 <<> tb=84806)
-18.17/25 56} Kxb3 {(Kxb3 Rxa3+ Bxa3 Kd3 Bb2 Ke3 Kc2 Kf2 Bd4+ Ke2 Bc5 Ke1
Kd3 Kd1 Bb4 Kc1 Bc3 Kb1 Bd4 Kc1 Be3+ Kb1 Ke2 Kb2 Bf4 Ka2 Kf1 g3 hxg3 Kb3 g2
Ka3 g1=Q) +16.56/30 16} 65. Rxa3+ Bxa3 {(Bxa3 Kd3 Bc5 Ke2 Kc2 Kf1 Kd3 Ke1
Ke3 Kf1 Kf4 Ke2 Kg3 Kd3 Kxg2 Ke4 h3 Kf5 Be3 Ke4 Bf4 Kd5 h2 Ke6 h1=Q Kf7 Qh6
Ke7 Qg7+ Ke8 Be3) +17.36/29 2} 66. Kd3 {(66.Kd3 Bc1 67.Ke2 Kc3 68.Ke1 Kd4
69.Kd1 Ke3 70.Ke1 Kf4 71.Kf2 Kxg4 72.Ke2 Kg3 73.Ke1 Kxg2 <TB> -Mate_19
tb=273075) -M19/26 23} Bc5 {(Bc5 Ke4) +17.58/29 44} 67. Ke4 {(67.Ke4 Kc2
68.Kf5 Be3 69.Ke4 Bc1 70.Kf3 Kd3 71.Kf2 <TT> -Mate_20 tb=87793) -M20/25 27}
Kc3 {(Kc3 Kf5) +M14/28 0} 68. Kf5 {(68.Kf5 Be7 69.Ke4 Kd2 70.Kd5 Ke3 71.Ke6
Kf4 72.Kxe7 Kxg4 <TT> -Mate_18 tb=19224) -M18/24 26 Arena Adjudication}
0-1[/pgn]

[D]8/8/2kb1R2/1p4p1/p5Pp/8/2P2KP1/8 w - - 1 54

Gaviota chose Kf3 and lost. On my old server, Komodo 7 and Stockfish 5 say that Ke3 draws:

Code: Select all

FEN&#58; 8/8/2kb1R2/1p4p1/p5Pp/8/2P2KP1/8 w - - 1 54 

Stockfish_5_64-bit&#58;

 42/66	04&#58;51	 530,705,856	1,821,278	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-e1 Bd6-c7 Re1-e6 Bc7-a5 Re6-e1 Ba5-b4 Re1-d1 Bb4-e7 Rd1-d7 a2-a1N+ Kc2xc3 Be7-f6+ Kc3-d3 Na1-b3 Rd7-a7+ Ka3-b4 Ra7-b7+ Kb4-a4 Rb7-a7+ Nb3-a5 Kd3-e4 Bf6-c3 Ra7-d7 Bc3-b2 Rd7-c7 Na5-b3 Ke4-f5 Bb2-c1 Rc7xc1 Nb3xc1 Kf5xg5 Nc1-e2 Kg5xh4 Ka4-b5 g4-g5 Kb5-c6 g5-g6 Ne2-d4 g6-g7 Nd4-f5+ Kh4-g5 Nf5xg7 Kg5-g6 Ng7-e6 Kg6-h7 Kc6-d5 Kh7-g8 Kd5-e4 Kg8-h7


Komodo-7-64bit&#58;

  27	00&#58;57	  76,464,746	1,320,951	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-d8 Rf1-e1 Bd8-b6 Re1-e8 Bb6-a5 Re8-e1 Ba5-b4 Re1-d1 Bb4-a5 Rd1-f1
  28	01&#58;07	  87,941,403	1,301,472	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-b6 Rf1-e1 Bb6-a5 Re1-a1 Ba5-c7 Ra1-f1 Bc7-a5 Rf1-d1 Ba5-b6 Rd1-e1
  29	01&#58;24	 107,545,350	1,276,402	 0.00	Kf2-e3 a4-a3 c2-c3 Kc6-d5 Ke3-d3 a3-a2 Rf6-f1 b5-b4 Kd3-c2 Kd5-c4 Kc2-b2 b4xc3+ Kb2-c2 Kc4-b4 Rf1-a1 Kb4-a3 Ra1-d1 Bd6-c7 Rd1-a1 Bc7-a5 Ra1-f1 Ba5-b6 Rf1-e1 Ka3-b4 Re1-a1 Kb4-a3 Ra1-e1
I think that they are right, but I am a weak chess player. Does anybody else think that Ke3 draws?
Lets do a quick over the board analysis of the last position of komodos pv. Black has two pawns more, but they are firmly blocked. The only way to win, is to break through to the king side. Now put the black bishop on any place there you think it is best placed for black and analyze:
1.Kb4 Ra1 2.Kc4 Rxa2 3.Kd4 Now what is the most powerful strategic weapon in the endgame? It is cutting of the king. So i play 3.Ra1 Ke3 4.Rf1! The only way to make progress here is to sacrifice something: 4.Ke2 5.Rf3 h3!? 6.Rxh3 Kf2 and now simple 7.Rh5 will eliminate both pawns with draw.
My educated guess is therefore: draw.
Adam Hair
Posts: 3226
Joined: Wed May 06, 2009 10:31 pm
Location: Fuquay-Varina, North Carolina

Re: Is this a draw?

Post by Adam Hair »

Thanks, Oliver.