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Drawish endgame

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Drawish endgame

Posted: Wed Jun 05, 2019 6:59 pm
by Nordlandia
Brief overview: white got two pawns for the piece and the remaining pawns are stationated on the kingside. White can hope to trade off everything and rely on the fact that K vs NN is draw. Is there any winning prospects for black here?

[d]6k1/5pp1/4n2p/B7/1P6/P1n2P2/6PP/6K1 w - - 0 33

Re: Drawish endgame

Posted: Wed Jun 05, 2019 11:17 pm
by Vinvin
SF likes the line :

[Event "Computer chess game"]
[Site "VINVIN-PC"]
[Date "2019.06.05"]
[Round "?"]
[White "Vinvin"]
[Black "Vinvin"]
[Result "*"]
[FEN "6k1/5pp1/4n2p/B7/1P6/P1n2P2/6PP/6K1 w - - 0 33"]

33. Kf2 Nd5 34. b5 Kf8 35. Ke2 Nc5 36. g4 Nb3 37. Be1 Nd4+ 38. Kd3 Nxb5 39.
Kc4 Nbc7 40. Kc5 Ke7 41. Kc6 Ke6 *

Analyze at the end :

Code: Select all

FEN: 8/2n2pp1/2K1k2p/3n4/6P1/P4P2/7P/4B3 w - - 6 42

Stockfish_19052509_x64_modern:

 37/72	01:21	 818 125 882	10 037 245	-2,64	42.f4 g6 43.Ba5 Ne8 44.f5+ gxf5 45.gxf5+ Ke5 46.Bd2 Nd6 47.Bxh6 Nxf5 48.Bd2 Nd4+ 49.Kb7 Ke6 50.Bh6 Nf5 51.Bc1 Nc3 52.Kb6 Kd5 53.Bg5 Ne4 54.Bc1 Nc5 55.Bg5 Nd6 56.h4 Nc4+ 57.Ka7 Ne6 58.Bc1 Ke4 59.Kb7 Nc5+ 60.Kc7 Kf5 61.Kc6 Nd3 62.Kb5
 38/55	01:21	 818 125 882	10 037 245	-2,74	42.a4 Ne8

Re: Drawish endgame

Posted: Sat Jun 08, 2019 4:19 pm
by Eelco de Groot
I have one deep search with a somewhat rising score, so I think it is promising. But Stockfish probably should have a better kingwalk score or something. I did not get the high score at the end of your PV for some reason, maybe because I had no tablebases, but I get much more drawish score, could be your result is because of the much deeper search at the start position.

Code: Select all

6k1/5pp1/4n2p/B7/1P6/P1n2P2/5KPP/8 b - -

Engine: Kaissa IV NoContempt (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G. Linscott

30/52  0:01   -1.06    1...Nd5 2.Ke2 Kf8 3.Kd3 Ke7 4.g3 Kd6 
                       5.b5 Kc5 6.a4 Ng5 7.Be1 Nf6 8.Kc3 Nxf3 
                       9.Bf2+ Kd6 10.Kb3 Nd5 11.a5 Nd2+ 
                       12.Ka3 Ne4 13.Bd4 Nec3 14.Bxc3 Nxc3 (4.654.773) 2377 

31/55  0:03   -0.96--  1...Nd5 2.Ke2 (7.635.320) 2329 

31/68  0:04   -1.06++  1...Nd5 (11.271.362) 2258 

31/68  0:05   -1.15    1...Nd5 2.Ke2 Kf8 3.Kd3 Ke7 4.g3 Kd6 
                       5.b5 f6 6.h4 Nc5+ 7.Kc4 g5 8.Bb4 Nxb4 
                       9.Kxb4 gxh4 10.gxh4 Nd3+ 11.Ka5 Ne5 
                       12.f4 Ng6 13.b6 Nxf4 14.Ka6 Nd3 (11.764.875) 2258 

32/48  0:05   -1.24++  1...Nd1+ (12.696.610) 2266 

32/48  0:05   -1.17    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nd7 
                       5.Kd4 Kf8 6.Kd5 Nxa4 7.b5 Ke7 8.Kc6 Ne5+ 
                       9.Kd5 f6 10.b6 Kd7 11.b7 Nc6 12.h4 Nb2 
                       13.Bb6 Nd3 14.g4 Ndb4+ (13.013.975) 2275 

33/46  0:05   -1.26++  1...Nd1+ (13.047.214) 2275 

33/47  0:05   -1.36++  1...Nd1+ (13.126.953) 2274 

33/55  0:05   -1.07--  1...Nd1+ 2.Ke2 (13.627.490) 2280 

33/58  0:07   -1.14    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Kd4 Nh4 13.Ke3 Ke6 14.Ke4 Ng6 (17.034.600) 2290 

34/53  0:07   -1.23++  1...Nd1+ (18.119.300) 2284 

34/53  0:08   -1.30    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.Kc4 Nd7 7.b5 Kf8 8.Kb4 Nac5 
                       9.Kc4 Ke8 10.Kd5 Nd3 11.Bc7 N7e5 
                       12.Bxe5 Nxe5 13.Kd6 Kd8 14.b6 Nc4+ (19.221.764) 2278 

35/47  0:09   -1.20--  1...Nd1+ 2.Ke2 (20.726.445) 2280 

35/49  0:09   -1.30++  1...Nd1+ (21.006.268) 2278 

35/53  0:10   -1.31    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.Kd5 Nc3+ 7.Kc6 Ne6 8.b5 Nd4+ 
                       9.Kc5 Ncxb5 10.Bb6 Kf7 11.Kc4 Nf5 
                       12.Kxb5 Nh4 13.Kc4 Nxg2 14.Kd5 g5 (24.203.119) 2281 

36/60  0:11   -1.22--  1...Nd1+ 2.Ke2 (26.606.070) 2296 

36/60  0:12   -1.12--  1...Nd1+ 2.Ke2 (29.582.758) 2291 

36/60  0:12   -1.22++  1...Nd1+ (29.728.148) 2290 

36/60  0:13   -1.30    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bf2 Nf4+ 13.Ke4 Ng6 14.Be3 Ke6 (30.661.405) 2285 

37/67  0:14   -1.21--  1...Nd1+ 2.Ke2 (32.970.505) 2282 

37/67  0:14   -1.21    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bf2 Nf4+ 13.Ke4 Ke6 14.Be3 Ng6 (33.636.280) 2288 

38/51  0:17   -1.12--  1...Nd1+ 2.Ke2 (39.504.999) 2282 

38/52  0:17   -1.21++  1...Nd1+ (39.820.667) 2283 

38/52  0:18   -1.27    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bf2 Nf4+ 13.Ke4 Ke6 14.Be3 Ng6 (42.058.423) 2285 

39/52  0:19   -1.36++  1...Nd1+ (45.035.897) 2287 

39/79  0:20   -1.31    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (47.102.232) 2285 

40/69  0:22   -1.36    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (50.834.025) 2287 

41/67  0:24   -1.36    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (56.034.710) 2293 

42/55  0:26   -1.36    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (61.565.724) 2286 

43/95  0:31   -1.37    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (71.824.471) 2291 

44/58  0:35   -1.37    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (81.387.827) 2290 

45/86  0:39   -1.37    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (89.541.504) 2291 

46/65  0:46   -1.37    1...Nd1+ 2.Ke2 Nb2 3.a4 Nf8 4.Ke3 Nxa4 
                       5.Kd4 f6 6.b5 Kf7 7.Kd5 Ng6 8.b6 Nf4+ 
                       9.Kc4 Nxb6+ 10.Bxb6 Nxg2 11.Kd5 g5 
                       12.Bc7 Nh4 13.Ke4 Ke6 14.Bb6 Nf5 (107.568.473) 2292 

47/68  1:06   -1.27--  1...Nd1+ 2.Ke2 (153.099.367) 2297 

47/68  1:20   -1.18--  1...Nd1+ 2.Ke2 (184.855.183) 2292 

47/68  1:25   -1.27++  1...Nd1+ (196.268.290) 2289 

47/68  2:07   -1.04--  1...Nd1+ 2.Ke2 (289.476.439) 2262 

47/91  2:50   -1.25++  1...Nd5 (386.615.118) 2269 

47/91  3:05   -1.61++  1...Nd5 (420.240.046) 2263 

47/146 8:06   -1.61    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Nd5 
                       5.Be1 Ke7 6.a4 Kd6 7.a5 Kc5 8.b6 Kc6 
                       9.Kf2 Nc5 10.Bd2 Kb5 11.g4 Ka6 
                       12.Kg3 Nb3 13.Be1 Nd4 14.Kf2 g5 (1.069.052.682) 2198 

48/66  9:19   -1.61    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Nd5 
                       5.Be1 Ke7 6.a4 Kd6 7.a5 Kc5 8.b6 Kc6 
                       9.Kf2 Nc5 10.Bd2 Kb5 11.g4 Ka6 
                       12.Kg3 Nb3 13.Be1 Nd4 14.Bf2 Ne2+ (1.222.364.084) 2182 

49/71  10:07  -1.51--  1...Nd5 2.Ke2 (1.322.213.929) 2176 

49/71  10:54  -1.42--  1...Nd5 2.Ke2 (1.418.911.389) 2168 

49/74  11:38  -1.42    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Ke8 
                       5.a4 Nd5 6.Be1 Kd7 7.h4 Nd4 8.Bf2 Nb3 
                       9.Ke2 Kd6 10.Be1 Nf4+ 11.Kf1 Kc5 
                       12.Bf2+ Kc4 13.b6 Na5 14.Be1 Nb7 (1.513.920.728) 2166 

50/63  12:02  -1.42    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Ke8 
                       5.a4 Nd5 6.Be1 Kd7 7.h4 Nd4 8.Bf2 Nb3 
                       9.Ke2 Kd6 10.Be1 Nf4+ 11.Kf1 Kc5 
                       12.Bf2+ Kd5 13.Be1 Kc4 14.b6 Nc5 (1.566.102.468) 2166 

51/77  12:36  -1.42    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Ke8 
                       5.a4 Nd5 6.Be1 Kd7 7.h4 Kc8 8.Ke2 Ndf4+ 
                       9.Kf1 Kb7 10.a5 Nd5 11.g4 Nec7 12.b6 Ne6 
                       13.h5 Nd4 14.Kf2 Nc6 (1.638.494.528) 2165 

52/105 14:45  -1.41    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Ke8 
                       5.a4 Nd5 6.Be1 Kd7 7.h4 Kc8 8.Ke2 Ndf4+ 
                       9.Kf1 Kb7 10.a5 Nd5 11.g4 Nec7 12.b6 Ne6 
                       13.h5 Nd4 14.Kf2 Nc6 (1.920.718.228) 2169 

53/68  16:52  -1.31--  1...Nd5 2.Ke2 (2.192.950.847) 2166 

53/73  18:03  -1.41++  1...Nd5 (2.344.468.699) 2164 

53/80  20:04  -1.52    1...Nd5 2.Ke2 Ndf4+ 3.Kf1 Kf8 4.b5 Nd5 
                       5.Ke2 Nc5 6.Be1 Nf4+ 7.Kd2 Nxg2 
                       8.Bf2 Nb7 9.a4 Ke7 10.Kc3 Kd7 11.Kb4 Nf4 
                       12.Bd4 f6 13.a5 Nd5+ 14.Ka4 Nd6 (2.606.911.072) 2164 

54/68  21:31  -1.61++  1...Nd5 (2.791.797.593) 2161 

54/74  25:27  -1.71++  1...Nd5 (3.299.479.228) 2160 

54/79  29:54  -1.47    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 g6 10.Kg3 Nd4 11.Bd2 g5 12.Kf2 Nb3 
                       13.Be1 Nc1 14.Bd2 Nd3+ (3.892.111.220) 2169 

55/85  33:02  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Nb3 8.Be1 Kb7 
                       9.Kg3 g6 10.Kh3 Nd4 11.Bd2 g5 12.Kg3 Ka6 
                       13.Kf2 Nb3 14.Be1 Nc5 (4.305.798.432) 2171 

56/90  35:23  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (4.614.551.515) 2173 

57/76  37:12  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (4.856.648.981) 2175 

58/72  39:33  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (5.161.738.782) 2174 

59/77  43:19  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (5.657.772.717) 2176 

60/78  48:10  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (6.302.511.987) 2180 

61/79  53:23  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (7.001.904.591) 2185 

62/92  58:47  -1.43    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd6 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Kg2 Nb3 
                       9.Be1 Ka6 10.Kg3 g6 11.Kh4 f6 12.Kg3 Nd4 
                       13.Bd2 g5 14.Kf2 Nb3 (7.721.572.461) 2189 

63/89  90:54  -1.52++  1...Nd5 (11.899.936.265) 2181 

63/89  110:22 -1.33--  1...Nd5 2.b5 (14.500.308.533) 2189 

63/89  113:46 -1.33    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 g6 
                       9.Bd2 Nb3 10.Be1 g5 11.Kf1 Nd4 
                       12.Kf2 Ka6 13.Bd2 Nb3 14.Be1 Nc5 (14.961.695.929) 2191 

64/86  118:12 -1.33    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 g6 
                       9.Bd2 Nb3 10.Be1 g5 11.Kf1 Nd4 
                       12.Kf2 Ka6 13.Bd2 Nb3 14.Be1 Nc5 (15.566.614.466) 2194 

65/88  121:28 -1.43++  1...Nd5 (16.002.859.127) 2195 

65/112 134:14 -1.52++  1...Nd5 (17.764.314.815) 2205 

65/112 137:46 -1.38    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 Nb3 
                       9.Kg3 g6 10.Kf2 g5 11.Kg3 Nd4 12.Bf2 Ne2+ 
                       13.Kg2 Nc1 14.Kf1 Nb3 (18.272.191.965) 2210 

66/81  149:56 -1.38    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 Nb3 
                       9.Kg3 g6 10.Kf2 g5 11.Kg3 Nd4 12.Bf2 Ne2+ 
                       13.Kg2 Nc1 14.Kf1 Nb3 (19.918.548.660) 2214 

67/87  172:21 -1.38    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 Nb3 
                       9.Kg3 g6 10.Kf2 g5 11.Kg3 Nd4 12.Bf2 Ne2+ 
                       13.Kg2 Nc1 14.Kf1 Nb3 (22.909.455.389) 2215 

68/93  211:13 -1.48++  1...Kf8 (28.213.601.252) 2226 

68/93  218:27 -1.57++  1...Kf8 (29.156.802.404) 2224 

68/109 237:20 -1.71++  1...Kf8 (31.682.185.193) 2224 

68/178 308:53 -1.33    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 Nb3 
                       9.Kg3 g6 10.Kf2 Ka6 11.Kg3 Nd4 
                       12.Bf2 Ne2+ 13.Kg2 h5 14.Bg3 Nd4 (41.051.860.178) 2214 

69/90  324:22 -1.33    1...Nd5 2.b5 Kf8 3.Bd2 Ke7 4.a4 Kd7 
                       5.a5 Nd4 6.b6 Kc6 7.g4 Kb7 8.Be1 Nb3 
                       9.Kg3 g6 10.Kf2 Ka6 11.Kg3 Nd4 
                       12.Bf2 Ne2+ 13.Kg2 h5 14.Bg3 Nd4 (43.119.069.435) 2215 

70/101 365:04 -1.43++  1...Kf8 (48.549.676.075) 2216 

70/101 376:50 -1.52++  1...Kf8 (50.116.856.122) 2216 

70/171 411:22 -1.66++  1...Kf8 (54.724.528.363) 2217 

70/171 430:46 -1.86++  1...Kf8 (57.346.413.603) 2218 

70/186 583:42 -1.53    1...Kf8 2.Ke3 Ke7 3.Kd3 Nd5 4.g3 Kd6 
                       5.b5 Kc5 6.a4 Nd4 7.f4 Nf5 8.Be1 Nd6 
                       9.Bf2+ Kb4 10.Bd4 f6 11.b6 h5 12.a5 Kb5 
                       13.Bb2 Nb4+ 14.Kd4 Kxa5 (78.102.455.010) 2230 

71/88  607:26 -1.44--  1...Kf8 2.Ke3 (81.456.376.104) 2234 

71/88  651:16 -1.35--  1...Kf8 2.Ke3 (87.709.364.581) 2244 

71/102 683:42 -1.44++  1...Kf8 (92.209.688.028) 2247 

71/102 696:32 -1.64++  1...Kf8 (93.953.169.118) 2248 

71/177 765:00 -1.91++  1...Kf8 (103.192.807.186) 2248 

71/184 837:52 -1.80    1...Kf8 2.Ke3 Ke7 3.Kd3 Nd5 4.b5 Kd6 
                       5.g3 Kc5 6.a4 Nd4 7.f4 Nf3 8.h3 f5 
                       9.Ke2 Nd4+ 10.Kd3 h5 11.Be1 h4 
                       12.gxh4 Nxf4+ 13.Kc3 Nxh3 14.Bd2 f4 (112.710.293.763) 2241 

72/90  847:39 -1.70--  1...Kf8 2.Ke3 (114.092.673.310) 2243 

72/94  864:22 -1.80++  1...Kf8 (116.353.639.912) 2243 

72/98  909:49 -1.94++  1...Kf8 (122.638.913.430) 2246 

72/183 1043:36-2.14++  1...Kf8 (140.712.315.906) 2247 

72/183 1120:13-1.61--  1...Kf8 2.Ke3 (151.136.061.525) 2248 

72/183 1149:48-2.00++  1...Kf8 (155.110.598.923) 2248 

72/199 1828:40-2.25    1...Kf8 2.Ke3 Ke7 3.Kd3 Nd5 4.g3 Kd6 
                       5.b5 Kc5 6.a4 Ng5 7.f4 Nf3 8.h3 f5 
                       9.Ke2 Nd4+ 10.Kd3 Nb3 11.Be1 Nf6 
                       12.Kc3 Nd4 13.Kd3 Ne4 14.b6 g6 (248.743.482.337) 2267 

73/88  1837:28-2.15--  1...Kf8 2.Ke3 (249.974.345.552) 2267 

73/88  1840:09-2.06--  1...Kf8 2.Ke3 (250.344.962.157) 2267 

73/98  1878:11-2.15++  1...Kf8 (255.456.539.190) 2266 

73/167 2010:34-1.92--  1...Kf8 2.Ke3 (274.669.085.799) 2276 

73/167 2021:20-2.14++  1...Kf8 (276.239.899.715) 2277 

73/180 2279:28-2.35    1...Kf8 2.Ke3 Ke7 3.Kd3 Nd5 4.g3 Kd6 
                       5.b5 Kc5 6.a4 Ng5 7.Ke2 Kc4 8.b6 Ne6 
                       9.b7 Nd4+ 10.Kd2 Nc6 11.g4 Kc5 12.f4 Kd6 
                       13.g5 Nb8 14.gxh6 gxh6 (313.887.984.249) 2295 

74/83  2284:35-2.26--  1...Kf8 2.Ke3 (314.671.545.240) 2295 

74/83  2286:55-2.16--  1...Kf8 2.Ke3 (315.032.926.885) 2295 

74/83  2296:03-2.26++  1...Kf8 (316.365.072.692) 2296 

74/163 2511:13-2.02--  1...Kf8 2.Ke3 (346.279.954.448) 2298 

74/163 2530:19-2.24++  1...Kf8 (348.769.797.522) 2297 

74/190 2950:12-2.44    1...Kf8 2.Ke3 Ke7 3.Kd3 Nd5 4.g3 Kd6 
                       5.b5 Kc5 6.a4 Ng5 7.Ke2 Kc4 8.b6 Ne6 
                       9.b7 Nd4+ 10.Kf1 Nc6 11.Ke2 Kc5 
                       12.Kd3 Nb8 13.Ke4 Nd7 14.Kd3 Kc6 (404.504.923.976) 2285 

75/96  2956:43-2.35--  1...Kf8 2.Ke3 (405.386.803.181) 2285
This is not the best Kaissa_IV I think. But this is what has been running.

Re: Drawish endgame

Posted: Sat Jun 08, 2019 8:21 pm
by Nordlandia
Black's material advantage of an mere pawn is probably not enough to convert this endgame.

Re: Drawish endgame

Posted: Sat Jun 08, 2019 9:32 pm
by Eelco de Groot
Yes, you are probably right. In the position at the end of Vincent's PV Black has a Knight against a passed pawn, but they seem to keep each other in equilibrium


[d]8/2n2pp1/2K1k2p/3n4/6P1/P4P2/7P/4B3 w - -

Code: Select all

Engine: Kaissa IV NoContempt (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

24/44  0:01   -0.68    10.a4 Na6 11.Kb5 Ndc7+ 12.Kc6 Ke7 
                       13.h4 Kd8 14.Kb6 Kc8 15.Bg3 Kd7 
                       16.Be1 g6 17.a5 h5 18.g5 Kc8 19.Bg3 Kd8 
                       20.Bxc7+ Nxc7 21.a6 Nxa6 22.Kxa6 Kd7 
                       23.Kb5 (3.192.437) 1989 

25/42  0:02   -0.75    10.a4 Na6 11.Kb5 Ndc7+ 12.Kb6 Kd7 
                       13.h4 g6 14.a5 h5 15.g5 Kc8 16.Bg3 Kd8 
                       17.Kc6 Ne6 18.Kb6 Nac5 19.a6 Nd7+ 
                       20.Kc6 Nd4+ 21.Kd5 Nf5 22.Bf4 Kc8 
                       23.Kc6 (4.041.125) 2009 

26/39  0:02   -0.84    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Kd7 
                       13.Bg3 Nc8 14.a6 Ned6+ 15.Bxd6 Nxd6+ 
                       16.Kb8 Nb5 17.Kb7 g5 18.h3 Nd6+ 
                       19.Kb8 Nc8 20.Kb7 f6 21.Kb8 Ne7 
                       22.a7 Nc6+ 23.Kb7 (4.939.301) 2021 

27/40  0:02   -0.84    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Kd7 
                       13.Bg3 Nc8 14.a6 Ned6+ 15.Bxd6 Nxd6+ 
                       16.Kb8 Nb5 17.Kb7 g5 18.h3 Nd6+ 
                       19.Kb8 Nc8 20.Kb7 f6 21.Kb8 Ne7 
                       22.a7 Nc6+ 23.Kb7 (5.527.260) 2040 

28/44  0:03   -0.93--  10.a4 Ne8 (6.695.093) 2061 

28/44  0:03   -1.03--  10.a4 Ne8 (7.202.741) 2066 

28/44  0:03   -1.17--  10.a4 Ne8 (7.977.484) 2064 

28/44  0:04   -1.05++  10.f4 (9.501.658) 2075 

28/44  0:04   -0.78++  10.f4 (9.945.631) 2084 

28/44  0:05   -1.37--  10.f4 g6 (10.647.502) 2091 

28/47  0:06   -0.90++  10.a4 (13.590.988) 2083 

28/47  0:06   -1.36    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Kd7 
                       13.Bg3 Nc8 14.a6 Ned6+ 15.Bxd6 Nxd6+ 
                       16.Kb6 Nc8+ 17.Kb7 g5 18.Kb8 Ne7 
                       19.Kb7 Nc6 20.h3 f6 21.Kb6 Kd6 
                       22.Kb7 Kc5 23.Kc7 (13.895.659) 2088 

29/45  0:06   -1.27++  10.a4 (14.160.339) 2090 

29/45  0:06   -1.17++  10.a4 (14.180.982) 2091 

29/45  0:06   -1.03++  10.a4 (14.211.160) 2092 

29/45  0:06   -0.84++  10.a4 (14.301.487) 2092 

29/45  0:07   -0.90    10.a4 Na6 11.Bg3 Nab4+ 12.Kb5 Nc2 
                       13.a5 Kd7 14.a6 Nc7+ 15.Kb6 Nxa6 
                       16.Kxa6 Kc6 17.Ka5 Kd5 18.Kb6 Nd4 
                       19.f4 Ne2 20.Kc7 Nxg3 21.hxg3 Ke4 
                       22.Kd6 Kf3 23.Ke7 (15.337.351) 2078 

30/45  0:08   -0.81++  10.a4 (17.978.485) 2063 

30/45  0:08   -0.71++  10.a4 (18.625.432) 2070 

30/48  0:10   -0.57++  10.a4 (20.678.888) 2064 

30/53  0:11   -0.61    10.a4 Na6 11.Kb5 Ndc7+ 12.Kc6 Ke7 
                       13.a5 g6 14.h4 h5 15.gxh5 gxh5 
                       16.Bf2 Kd8 17.Bg3 Ne6 18.Kb6 Nac7 
                       19.a6 Nxa6 20.Kxa6 Nd4 21.f4 Kd7 
                       22.Bf2 Nf5 23.Kb5 (23.045.889) 2051 

31/44  0:13   -0.70--  10.a4 Ne8 (27.286.105) 2044 

31/44  0:13   -0.79--  10.a4 Ne8 (27.958.869) 2044 

31/46  0:14   -0.70++  10.Bg3 (29.842.974) 2048 

31/46  0:15   -0.50++  10.Bg3 (31.163.314) 2047 

31/48  0:15   -0.70    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nf6 
                       13.a5 Nd7 14.Bf2 Kd5 15.a6 Nc6 16.f4 Nf6 
                       17.g5 Ne4 18.Be3 h5 19.Kb6 Kd6 
                       20.Kb7 Nc5+ 21.Bxc5+ Kxc5 22.f5 h4 
                       23.f6 (32.716.953) 2050 

32/44  0:16   -0.61++  10.Bg3 (33.916.676) 2047 

32/59  0:16   -0.52++  10.Bg3 (34.717.379) 2046 

32/59  0:18   -0.38++  10.Bg3 (37.540.885) 2045 

32/59  0:19   -0.57    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nf6 
                       13.a5 Nd7 14.Bf2 Kd5 15.a6 Nc6 16.f4 Nf6 
                       17.h3 h5 18.g5 Ne4 19.Bg1 Nd6+ 
                       20.Kc7 Nb5+ 21.Kb6 Nc3 22.Kc7 f5 
                       23.gxf6 (39.109.229) 2042 

33/51  0:19   -0.66--  10.Bg3 Ne8 (40.399.928) 2036 

33/53  0:20   -0.76--  10.Bg3 Ne8 (41.731.606) 2035 

33/56  0:21   -0.66++  10.Bg3 (43.615.912) 2034 

33/56  0:22   -0.81    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nf6 
                       13.a5 Nd7 14.Bf2 Kd5 15.a6 Nc6 16.f4 Nf6 
                       17.h3 h5 18.gxh5 Nxh5 19.f5 Nf6 
                       20.Kc7 Ne4 21.a7 Nxa7 22.Bxa7 Ke5 
                       23.Kd7 (44.676.853) 2027 

34/47  0:23   -0.90--  10.Bg3 Ne8 (48.300.638) 2025 

34/54  0:24   -0.87    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nf6 
                       13.a5 Nd7 14.Bf2 Kd5 15.a6 Nc6 16.f4 Nf6 
                       17.h3 h5 18.gxh5 Nxh5 19.Be3 f5 
                       20.Bd2 Ng3 21.Bc3 g6 22.Bd4 Nh5 
                       23.Be5 (49.908.949) 2025 

35/52  0:27   -0.90    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nf6 
                       13.a5 Nd7 14.Bf2 Kd5 15.a6 Nc6 16.f4 Nf6 
                       17.h3 h5 18.gxh5 Nxh5 19.Be3 f5 
                       20.Bd2 Ng3 21.Bc3 g6 22.Bd4 Nh5 
                       23.Be5 (56.162.547) 2025 

36/53  0:29   -1.00--  10.Bg3 Ne8 (60.217.316) 2026 

36/53  0:29   -0.90++  10.Bg3 (60.767.342) 2026 

36/53  0:31   -0.76++  10.Bg3 (63.673.518) 2030 

36/59  0:32   -0.56++  10.Bg3 (65.567.031) 2033 

36/61  0:34   -0.38    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Kd7 
                       13.a5 Nc8 14.a6 Ned6+ 15.Bxd6 Nxd6+ 
                       16.Kb8 Nb5 17.Kb7 g5 18.Kb6 Nd6 
                       19.Kc5 Nc8 20.Kd5 Ke8 21.Ke5 Ke7 
                       22.Kd5 Na7 23.Kc5 (69.541.735) 2034 

37/58  0:37   -0.47--  10.Bg3 Ne8 (76.371.834) 2040 

37/58  0:38   -0.56--  10.Bg3 Ne8 (77.649.004) 2041 

37/58  0:41   -0.47++  10.Bg3 (84.698.058) 2045 

37/60  0:46   -0.70--  10.Bg3 Ne8 (95.696.373) 2050 

37/60  0:49   -0.69    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Kd7 
                       13.a5 Nc6 14.a6 Nf6 15.a7 Nxa7 
                       16.Kxa7 Nd5 17.Ka6 Kc6 18.Ka7 Nb6 
                       19.Kb8 Kd7 20.h3 g6 21.Bf4 h5 22.Kb7 Nd5 
                       23.Bh6 (102.033.602) 2054 

38/60  0:52   -0.78--  10.Bg3 Ne8 (108.058.344) 2055 

38/60  0:54   -0.69++  10.Bg3 (111.152.131) 2056 

38/69  0:57   -0.54++  10.Bg3 (119.185.353) 2063 

38/69  0:58   -0.67    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Kd7 
                       13.a5 Nc6 14.a6 Nf6 15.a7 Nxa7 
                       16.Kxa7 Nd5 17.Kb7 f6 18.h3 g6 
                       19.Be1 h5 20.gxh5 gxh5 21.Bd2 Kd6 
                       22.Kc8 Ke6 23.Kd8 (120.399.194) 2064 

39/55  1:02   -0.58++  10.Bg3 (129.740.542) 2061 

39/55  1:03   -0.58    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Kd7 
                       13.a5 Nc6 14.a6 Nf6 15.a7 Nxa7 
                       16.Kxa7 Nd5 17.Kb7 f6 18.h3 g6 
                       19.Be1 h5 20.gxh5 gxh5 21.Bd2 Kd6 
                       22.Kc8 Ke6 23.Kd8 (131.234.696) 2063 

40/58  1:06   -0.67--  10.Bg3 Ne8 (136.797.668) 2062 

40/58  1:07   -0.76--  10.Bg3 Ne8 (139.282.618) 2063 

40/66  1:13   -0.67++  10.Bg3 (151.173.193) 2065 

40/66  1:16   -0.91--  10.Bg3 Ne8 (158.203.300) 2068 

40/66  1:18   -0.69++  10.Bg3 (162.585.861) 2068 

40/89  1:26   -0.90    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Kd7 
                       13.a5 Nc6 14.a6 Nf6 15.Bb8 Nd8+ 
                       16.Kb6 Nd5+ 17.Kc5 Nc7 18.a7 Na8 
                       19.f4 Nb7+ 20.Kb5 g6 21.Be5 Nd6+ 
                       22.Ka6 Nc7+ 23.Kb6 (179.304.788) 2062 

41/69  1:32   -0.81++  10.Bg3 (191.287.984) 2067 

41/69  1:34   -0.71++  10.Bg3 (195.018.858) 2070 

41/69  1:36   -1.00--  10.Bg3 Ne8 (201.491.037) 2077 

41/69  1:41   -1.19--  10.Bg3 Ne8 (210.611.327) 2081 

41/69  1:46   -0.99++  10.Bg3 (221.411.773) 2082 

41/69  1:50   -1.46--  10.Bg3 Ne8 (229.641.615) 2085 

41/69  1:51   -1.04++  10.Bg3 (232.485.855) 2087 

41/128 2:03   -0.57    10.Bg3 Ne8 11.a4 Ne7+ 12.Kb7 Nd6+ 
                       13.Bxd6 Kxd6 14.a5 g5 15.a6 Nc6 
                       16.Kb6 Nb4 17.a7 Nd5+ 18.Kb7 Nc7 
                       19.Kb6 Kd7 20.Kb7 Na8 21.Kb8 Kc6 
                       22.Kc8 Nb6+ 23.Kb8 (257.413.257) 2089 

42/65  2:05   -0.67--  10.Bg3 Ne8 (262.462.078) 2088 

42/65  2:07   -0.57++  10.Bg3 (267.182.790) 2087 

42/65  2:08   -0.76--  10.Bg3 Ne8 (267.845.482) 2087 

42/65  2:09   -0.96--  10.Bg3 Ne8 (270.932.880) 2086 

42/65  2:31   -1.23--  10.Bg3 Ne8 (313.340.164) 2072 

42/71  2:32   -1.00++  10.Bg3 (316.323.976) 2073 

42/71  2:42   -1.16    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.Kc5 Ndc6 
                       16.Bc3 f6 17.a6 Kd7 18.f4 Nc8 19.Be1 Nb8 
                       20.Kb5 Nd6+ 21.Kb6 Nc6 22.Bf2 Nc8+ 
                       23.Kc5 (335.738.221) 2071 

43/62  2:50   -1.07++  10.a4 (351.899.213) 2066 

43/66  3:10   -1.26--  10.a4 Ne8 (390.935.752) 2046 

43/66  3:16   -1.12++  10.a4 (402.194.170) 2042 

43/73  3:44   -1.40--  10.a4 Ne8 (454.243.838) 2027 

43/73  3:58   -1.16++  10.a4 (482.759.802) 2024 

43/73  4:09   -1.67--  10.a4 Ne8 (504.981.241) 2020 

43/73  4:10   -1.23++  10.a4 (506.458.488) 2020 

43/84  4:27   -1.36    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.Kc5 Nxf3 
                       16.Bc3 Kd7 17.Bxg7 Nc6 18.a6 Nxh2 
                       19.Bxh6 Nxg4 20.Bg5 Nf2 21.Be3 Ne4+ 
                       22.Kb6 Nd6 23.Bg1 (538.341.830) 2015 

44/66  4:38   -1.46--  10.a4 Ne8 (560.042.028) 2014 

44/66  4:54   -1.55--  10.a4 Ne8 (591.672.131) 2011 

44/66  5:15   -1.69--  10.a4 Ne8 (632.733.871) 2004 

44/73  6:04   -1.57++  10.Bf2 (733.189.960) 2011 

44/73  6:56   -1.89--  10.Bf2 Ne8 (840.600.005) 2015 

44/73  7:11   -1.60++  10.Bf2 (868.557.616) 2014 

44/102 8:24   -1.74    10.Bf2 Ne8 11.Bc5 Nc3 12.Bd4 Ne2 
                       13.Ba1 Nf4 14.a4 Ng6 15.a5 Ne7+ 
                       16.Kc5 f6 17.Bc3 Nc7 18.f4 Kd7 19.f5 Nc8 
                       20.Bd2 Nd6 21.Be1 h5 22.h3 Ne4+ 
                       23.Kd4 (1.016.919.759) 2015 

45/67  8:33   -1.65++  10.Bf2 (1.034.956.096) 2015 

45/67  8:38   -1.55++  10.Bf2 (1.045.986.199) 2016 

45/71  8:54   -1.84--  10.Bf2 Ne8 (1.077.134.841) 2015 

45/72  10:59  -1.62++  10.Bf2 (1.329.199.735) 2016 

45/72  11:10  -1.36++  10.Bf2 (1.353.750.494) 2019 

45/140 14:55  -1.00++  10.Bf2 (1.810.346.778) 2020 

45/140 15:24  -1.35    10.Bf2 Ne8 11.Bc5 Nc3 12.h4 f6 13.f4 f5 
                       14.gxf5+ Kxf5 15.Bd4 Ne2 16.Bc5 Nc1 
                       17.a4 Nb3 18.Bb4 Nf6 19.Bc3 g6 
                       20.Kb5 Ne4 21.Bg7 h5 22.Kc4 Nbc5 
                       23.a5 (1.868.587.964) 2021 

46/63  15:41  -1.25++  10.Bf2 (1.905.524.840) 2022 

46/78  15:56  -1.16++  10.Bf2 (1.934.585.742) 2023 

46/78  16:08  -1.02++  10.Bf2 (1.959.330.119) 2023 

46/78  17:32  -1.44--  10.Bf2 Ne8 (2.129.974.639) 2023 

46/91  18:05  -1.13++  10.Bf2 (2.196.332.518) 2023 

46/91  19:13  -1.54    10.Bf2 Ne8 11.Bc5 Nc3 12.h4 Na4 
                       13.Bb4 g6 14.h5 gxh5 15.gxh5 Nf6 
                       16.Kb5 Nb2 17.a4 Nd3 18.Bf8 Kd7 
                       19.a5 Kc7 20.Bxh6 Nxh5 21.a6 Ne5 
                       22.Kc5 Ng6 23.Be3 (2.334.167.130) 2024 

47/65  19:32  -1.45++  10.Bf2 (2.374.377.597) 2024 

47/65  19:40  -1.35++  10.Bf2 (2.389.423.166) 2024 

47/77  19:51  -1.26    10.Bf2 Ne8 11.Bc5 Nc3 12.h4 Na4 
                       13.Bb4 g6 14.h5 gxh5 15.gxh5 Nf6 
                       16.Kb5 Nb2 17.a4 Nd3 18.Bf8 Kd7 
                       19.a5 Kc7 20.Bxh6 Nxh5 21.a6 Ne5 
                       22.Kc5 Ng6 23.Be3 (2.413.207.965) 2024 

48/63  20:26  -1.35--  10.Bf2 Ne8 (2.484.793.617) 2025 

48/64  20:44  -1.45--  10.Bf2 Ne8 (2.519.808.070) 2025 

48/73  20:50  -1.35++  10.Bf2 (2.532.880.869) 2025 

48/73  21:17  -1.15++  10.Bf2 (2.589.344.656) 2026 

48/83  21:25  -1.27    10.Bf2 Ne8 11.Bc5 Nc3 12.h4 Na4 
                       13.Bb4 g6 14.h5 gxh5 15.gxh5 Nf6 
                       16.Kb5 Nb2 17.a4 Nd3 18.Bf8 Kd7 
                       19.a5 Kc7 20.Bxh6 Nxh5 21.a6 Ne5 
                       22.Kc5 Ng6 23.Be3 (2.605.953.417) 2026 

49/71  22:12  -1.36--  10.Bf2 Ne8 (2.703.114.455) 2028 

49/71  22:28  -1.46--  10.Bf2 Ne8 (2.736.417.552) 2029 

49/71  23:27  -1.60--  10.Bf2 Ne8 (2.856.171.682) 2029 

49/71  24:40  -1.79--  10.Bf2 Ne8 (3.005.439.628) 2029 

49/74  27:10  -1.63++  10.a4 (3.329.179.279) 2041 

49/87  29:14  -2.06--  10.a4 Ne8 (3.582.561.236) 2042 

49/151 44:01  -1.67++  10.a4 (5.343.861.361) 2023 

49/152 45:05  -1.95    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Ne6 20.f5 Nec7 21.a7 Kc6 
                       22.Bf2 Nb6+ 23.Kd3 (5.469.304.473) 2021 

50/73  45:16  -1.86++  10.a4 (5.490.837.283) 2021 

50/73  46:08  -2.05--  10.a4 Ne8 (5.593.069.085) 2020 

50/73  47:33  -1.91++  10.a4 (5.765.250.978) 2020 

50/73  47:34  -1.71++  10.a4 (5.768.160.798) 2020 

50/73  47:38  -1.44++  10.a4 (5.775.271.396) 2020 

50/100 47:44  -1.08++  10.a4 (5.788.062.751) 2020 

50/149 52:27  -2.06    10.f4 g6 11.a4 f5 12.gxf5+ gxf5 
                       13.a5 Na6 14.Bd2 h5 15.Kb5 Nb8 
                       16.Kc5 Nd7+ 17.Kc6 Ne7+ 18.Kb5 Kd5 
                       19.a6 Nc8 20.Be3 Nd6+ 21.Ka5 Ne8 
                       22.a7 Nc7 23.Kb4 (6.343.516.042) 2015 

51/73  52:55  -1.97++  10.f4 (6.400.940.460) 2015 

51/73  54:18  -2.15--  10.f4 g6 (6.572.905.561) 2017 

51/73  58:20  -2.01++  10.a4 (7.067.645.604) 2019 

51/73  58:23  -1.82++  10.a4 (7.074.108.006) 2019 

51/87  63:31  -2.30--  10.a4 Ne8 (7.703.845.266) 2021 

51/101 69:20  -2.28    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Nc2 20.Bf2 Na3+ 21.Kb3 Nb5 
                       22.a7 Ndc7 23.Kc4 (8.435.105.861) 2027 

52/74  69:36  -2.18++  10.a4 (8.467.282.987) 2027 

52/74  69:43  -2.09++  10.a4 (8.481.483.023) 2027 

52/74  69:52  -1.95++  10.a4 (8.499.088.606) 2027 

52/79  69:59  -2.15    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Ne6 20.f5 Nec7 21.a7 Kc6 
                       22.Bf2 Nf6 23.h3 (8.514.324.895) 2027 

53/76  70:08  -2.05++  10.a4 (8.532.754.439) 2027 

53/76  70:21  -1.96++  10.a4 (8.558.800.806) 2027 

53/76  70:54  -2.24--  10.a4 Ne8 (8.628.981.802) 2028 

53/76  71:33  -2.03++  10.a4 (8.708.055.601) 2028 

53/83  71:59  -1.76++  10.a4 (8.762.726.817) 2028 

53/161 78:54  -2.30    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Ne6 20.Ba5 Nec7 21.a7 Na8 
                       22.Bd2 Kc6 23.g5 (9.624.932.926) 2032 

54/83  79:15  -2.20++  10.a4 (9.667.973.394) 2032 

54/83  79:19  -2.11++  10.a4 (9.676.160.138) 2033 

54/83  79:25  -1.97++  10.a4 (9.689.050.596) 2033 

54/83  79:41  -1.98    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Ne6 20.Ba5 Nec7 21.a7 Na8 
                       22.Bd2 Kc6 23.g5 (9.722.139.755) 2033 

55/76  80:00  -1.89++  10.a4 (9.759.610.183) 2033 

55/78  80:37  -1.79++  10.a4 (9.835.759.676) 2033 

55/93  85:13  -2.07--  10.a4 Ne8 (10.420.920.713) 2037 

55/93  86:39  -1.86++  10.a4 (10.603.589.210) 2039 

55/111 87:57  -1.60++  10.a4 (10.761.673.559) 2039 

55/118 88:39  -1.61    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.f4 Nd5+ 
                       16.Kc5 Nb3+ 17.Kb5 Kd6 18.a6 Nd4+ 
                       19.Kc4 Ne6 20.Ba5 Kc6 21.a7 Nec7 
                       22.g5 h5 23.f5 (10.850.596.854) 2039 

56/84  93:28  -1.71--  10.a4 Ne8 (11.465.678.994) 2044 

56/84  98:38  -1.80--  10.a4 Ne8 (12.137.633.190) 2050 

56/84  102:26 -1.94--  10.a4 Ne8 (12.618.455.640) 2053 

56/84  110:23 -2.14--  10.a4 Ne8 (13.641.448.505) 2059 

56/89  129:31 -2.41--  10.a4 Ne8 (16.063.970.080) 2066 

56/113 165:29 -2.42    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kc7 Nb5+ 14.Kb6 Nd4 15.Kc7 Nxf3 
                       16.a6 Nd4 17.Kb7 Nb5 18.Kb6 Nd6 
                       19.Kc7 Nd5+ 20.Kc6 Nc8 21.h3 f6 
                       22.Bd2 Nce7+ 23.Kb7 (20.704.170.471) 2085 

57/84  175:36 -2.32++  10.a4 (22.090.126.417) 2096 

57/84  176:13 -2.23++  10.a4 (22.173.688.566) 2097 

57/84  183:13 -2.51--  10.a4 Ne8 (23.150.936.419) 2105 

57/93  203:02 -2.30++  10.a4 (25.825.509.707) 2119 

57/153 229:17 -2.71--  10.a4 Ne8 (29.331.423.108) 2132 

57/153 241:28 -2.71    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kb6 Kd7 14.h4 Nd5+ 15.Kc5 Nc7 
                       16.Bg3 Ne6+ 17.Kd5 Nb5 18.Be5 Nbc7+ 
                       19.Ke4 Kc6 20.h5 Ne8 21.f4 f6 22.Bc3 Nd6+ 
                       23.Ke3 (30.972.446.967) 2137 

58/84  257:24 -2.71    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kb6 Kd7 14.h4 Nd5+ 15.Kc5 Nc7 
                       16.Bg3 Ne6+ 17.Kd5 Nb5 18.Be5 Nbc7+ 
                       19.Ke4 Kc6 20.h5 Ne8 21.f4 f6 22.Bc3 Nd6+ 
                       23.Ke3 (33.162.455.802) 2147 

59/84  270:52 -2.71    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kb6 Kd7 14.h4 Nd5+ 15.Kc5 Nc7 
                       16.Bg3 Ne6+ 17.Kd5 Nb5 18.Be5 Nbc7+ 
                       19.Ke4 Kc6 20.h5 Ne8 21.f4 f6 22.Bc3 Nd6+ 
                       23.Ke3 (34.914.926.130) 2148 

60/81  273:45 -2.61++  10.a4 (35.294.548.938) 2148 

60/90  275:55 -2.71    10.a4 Ne8 11.a5 Ne7+ 12.Kb7 Nd6+ 
                       13.Kb6 Kd7 14.h4 Nd5+ 15.Kc5 Nc7 
                       16.Bc3 Ne6+ 17.Kd5 Nb5 18.Bd2 Ned4 
                       19.Ke4 Nc6 20.Be1 Ke6 21.f4 Nd6+ 
                       22.Kf3 Ne8 23.Bc3 {[fen]4n3/5pp1/2n1k2p/P7/5PPP/2B2K2/8/8 b - -[/fen] This appears to be a draw? Not sure. See the pgn} (35.577.487.635) 2149
[pgn] [Event "Computer chess game"] [Site "VINVIN-PC"] [Date "2019.06.05"] [Round "?"] [White "Vinvin"] [Black "Vinvin"] [Result "*"] [FEN "6k1/5pp1/4n2p/B7/1P6/P1n2P2/6PP/6K1 w - - 0 33"] 33. Kf2 Nd5 34. b5 Kf8 35. Ke2 Nc5 36. g4 Nb3 37. Be1 Nd4+ 38. Kd3 Nxb5 39. Kc4 Nbc7 40. Kc5 Ke7 41. Kc6 Ke6 42. a4 Ne8 43. a5 Ne7+ 44. Kb7 Nd6+ 45. Kb6 Kd7 46. h4 Nd5+ 47. Kc5 Nc7 48. Bc3 Ne6+ 49. Kd5 Nb5 50. Bd2 Ned4 51. Ke4 Nc6 52. Be1 Ke6 53. f4 Nd6+ 54. Kf3 Ne8 55.Bc3 {Without tablebases I can't tell if this is winning for Black. I do get a Fail High for 55... f6} [/pgn]
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