Arasan test suite additions

[lech]

Code: Select all

info depth 39 seldepth 101 score cp 452 nodes 95007903954 nps 8283711 time 11469243 multipv 1 pv d3g6 h7g6 e5g6 f7g6 g4g6 g8h8 h6g5 e8f8 f1f3 f6g5 f3h3 g5h4 g6h5 h8g8 h3h4 d8h4 h5h4 b8d7 h4g5 g8f7 f4f5 e6f5 g5f5 d7f6 f5c5 c8d7 a1f1 f7g6 h2h4 f6e4 f1f8 e4c5 f8a8 c5e4 c3c4 a7a6 a8b8 d7e6 d4d5 e6g4 b8b7 g6f6 b7c7 f6e5 c7g7 g4d1 g7g6 e4f6 g6g5 e5d6 g5f5 f6d7 h4h5 d1c2 f5f4

info depth 39 seldepth 101 score cp 391 nodes 95007903954 nps 8283711 time 11469243 multipv 2 pv h2h4 b8c6 h4h5 c6e7 h5g6 f7g6 e5g6 e7g6 d3g6 g8h8 g6e8 d8e8 h6g5 f6g7 d4c5 c8d7 a1d1 e8f7 f1e1 a8e8 c3c4 h7h5 g4h3 h8g8 h3g3 d7c6 g5h6 h5h4 g3g4 f7f6 h6g5 f6f5 g4f5 e6f5 e1e8 c6e8 g5h4 e8c6 d1d6 g7b2 h4f6 b2c1 f6e5 c1e3 g1h2 c6e4 d6d7 e4c6 d7e7

Thanks Louis, it looks that there are 2 sloutions at least.

Here's the last update for h2h4:

Code: Select all

info depth 41 seldepth 101 score cp 436 nodes 373824621040 nps 8596327 time 43486548 multipv 2 pv h2h4 b8c6 h4h5 c6e7 h5g6 f7g6 e5g6 e7g6 d3g6 e8e7 f4f5 g8h8 a1e1 d8g8 g4g3 c5d4 f5e6 g8g6 g3g6 h7g6 f1f6 c8e6 e1e6 e7e6 f6e6 d4c3 e6e7 a8c8 e7b7 a7a5 g1f2 c8c4 g2g3 c3c2 h6c1 a5a4 f2e2 c4c3 e2d2 c3g3 d2c2 h8g8 b7a7 g3g4 c2d3 g8f8 c1d2 f8e8 d2e3 g4h4 a2a3 e8f8

I think many of engines can get h2h4 quickly and keep it.

[zullil]

I think many of engines can get h2h4 quickly and keep it.

I analyzed the position with several engines. Each found h4 quickly, but eventually preferred Bxg6.

It does seem that h4 is almost as strong.

[zullil]

Last results from Stockfish:

Code: Select all

info depth 42 seldepth 101 score cp 484 nodes 459308288662 nps 8605777 time 53372087 multipv 1 pv d3g6 f7g6 e5g6 h7g6 g4g6 g8h8 h6g5 e8f8 f1f3 f6g5 f3h3 g5h4 g6h5 h8g7 h3h4 d8h4 h5h4 b8d7 h4g5 g7f7 f4f5 e6f5 g5f5 d7f6 f5c5 c8d7 a1f1 a8e8 c5d5 f7g6 d5b7 d7g4 b7c6 e8e6 c6b5 f8e8 h2h4 g6f7 f1f2 e8h8 b5g5 h8g8 g5f4 g4h5 d4d5 e6e1 g1h2 g8g6 d5d6 f7g7 f4d4 e1d1 f2d2 d1d2 d4d2 h5g4 h4h5 g6h6 d2g5 g7h7 h2g1 a7a6

info depth 42 seldepth 101 score cp 440 nodes 459308288662 nps 8605777 time 53372087 multipv 2 pv h2h4 b8c6 h4h5 c6e7 h5g6 f7g6 e5g6 e7g6 d3g6 e8e7 f4f5 g8h8 a1e1 d8g8 g4g3 c5d4 f5e6 g8g6 g3g6 h7g6 f1f6 c8e6 e1e6 e7e6 f6e6 d4c3 e6e7 a8c8 e7b7 a7a5 g1f2 c8c4 g2g3 c3c2 h6c1 a5a4 f2e2 c4c3 e2d2 c3g3 d2c2 h8g8 b7a7 g3g4 c2d3 g8f8 c1d2 f8e8 d2e3 g4h4 a2a3 h4g4

[jdart]

Houdini 3 x32, 3 threads, 3.5 hours:

New game
rnbqr1k1/pp3p1p/4pbpB/2p1N3/3P1PQ1/2PB4/P5PP/R4RK1 w - - 0 1

Analysis by Houdini 3 w32 - 3 threads _3_w32:

1. +- (3.66): 1.Bxg6 fxg6 2.Nxg6 hxg6 3.Qxg6+ Kh8 4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4 7.Qh6+ Kg8 8.Rxh4 Kf7 9.Qh5+ Ke7 10.Qxc5+ Ke8 11.Rh7 Rf5 12.Rh8+ Kf7 13.Qxf5+ exf5 14.Rxd8 Nc6 15.Rh8 Ne7 16.Rh7+ Kf6 17.Re1 Be6 18.Rh6+ Ng6 19.Rxg6+ Kxg6 20.Rxe6+ Kf7 21.Re5 Kf6 22.Kf2 b6 23.d5 Rh8 24.Re6+ Kf7 25.h3 b5 26.Ra6

2. +- (1.51): 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Nxg6 Nxg6 5.Bxg6 Re7 6.Be4+ Kh8 7.dxc5 Bd7 8.Bxb7 Rb8 9.Rab1 Qc7 10.c6 Bxc6 11.Bxc6 Rxb1 12.Rxb1 Qxc6 13.Rb8+ Re8 14.Rxe8+ Qxe8 15.c4 Qc6 16.Qh5 Kg8 17.Qb5 Bd4+ 18.Kh2 Qxb5 19.cxb5 Kf7 20.Kg3 Kg6 21.Bf8 Kf5 22.Kf3 h5 23.Bd6 Bb6 24.Be5 Bg1 25.g3 Bc5 26.a4 Bb6

3. +/- (0.76): 1.Rf3 Bg7 2.Rh3 f5 3.Qg3 Bxh6 4.Rxh6 Qe7 5.Nxg6 Qg7 6.Ne5 Qxg3 7.hxg3 cxd4 8.cxd4 Nc6 9.Bb5 Re7 10.Bxc6 bxc6 11.g4 fxg4 12.Rb1 Bb7 13.Rh4 Rg7 14.Rxg4 Rxg4 15.Nxg4 Ba6 16.Ne5 Rf8 17.g3 Bb5 18.Rc1 Rd8 19.Nxc6 Bxc6 20.Rxc6 Rxd4 21.Ra6

(Dart, 30.12.2012)

[zullil]

Houdini 3 x32, 3 threads, 3.5 hours:

New game
rnbqr1k1/pp3p1p/4pbpB/2p1N3/3P1PQ1/2PB4/P5PP/R4RK1 w - - 0 1

Analysis by Houdini 3 w32 - 3 threads _3_w32:

1. +- (3.66): 1.Bxg6 fxg6 2.Nxg6 hxg6 3.Qxg6+ Kh8 4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4 7.Qh6+ Kg8 8.Rxh4 Kf7 9.Qh5+ Ke7 10.Qxc5+ Ke8 11.Rh7 Rf5 12.Rh8+ Kf7 13.Qxf5+ exf5 14.Rxd8 Nc6 15.Rh8 Ne7 16.Rh7+ Kf6 17.Re1 Be6 18.Rh6+ Ng6 19.Rxg6+ Kxg6 20.Rxe6+ Kf7 21.Re5 Kf6 22.Kf2 b6 23.d5 Rh8 24.Re6+ Kf7 25.h3 b5 26.Ra6

2. +- (1.51): 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Nxg6 Nxg6 5.Bxg6 Re7 6.Be4+ Kh8 7.dxc5 Bd7 8.Bxb7 Rb8 9.Rab1 Qc7 10.c6 Bxc6 11.Bxc6 Rxb1 12.Rxb1 Qxc6 13.Rb8+ Re8 14.Rxe8+ Qxe8 15.c4 Qc6 16.Qh5 Kg8 17.Qb5 Bd4+ 18.Kh2 Qxb5 19.cxb5 Kf7 20.Kg3 Kg6 21.Bf8 Kf5 22.Kf3 h5 23.Bd6 Bb6 24.Be5 Bg1 25.g3 Bc5 26.a4 Bb6

3. +/- (0.76): 1.Rf3 Bg7 2.Rh3 f5 3.Qg3 Bxh6 4.Rxh6 Qe7 5.Nxg6 Qg7 6.Ne5 Qxg3 7.hxg3 cxd4 8.cxd4 Nc6 9.Bb5 Re7 10.Bxc6 bxc6 11.g4 fxg4 12.Rb1 Bb7 13.Rh4 Rg7 14.Rxg4 Rxg4 15.Nxg4 Ba6 16.Ne5 Rf8 17.g3 Bb5 18.Rc1 Rd8 19.Nxc6 Bxc6 20.Rxc6 Rxd4 21.Ra6

(Dart, 30.12.2012)

Note that the results shown here are from Stockfish on 8 cores for almost 15 hours. I think I'll let Critter look at this one deeply, to see if it agrees that h4 is almost equal to Bxg6.

[Eelco de Groot]

Houdini 3 x32, 3 threads, 3.5 hours:

New game
rnbqr1k1/pp3p1p/4pbpB/2p1N3/3P1PQ1/2PB4/P5PP/R4RK1 w - - 0 1

Analysis by Houdini 3 w32 - 3 threads _3_w32:

1. +- (3.66): 1.Bxg6 fxg6 2.Nxg6 hxg6 3.Qxg6+ Kh8 4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4 7.Qh6+ Kg8 8.Rxh4 Kf7 9.Qh5+ Ke7 10.Qxc5+ Ke8 11.Rh7 Rf5 12.Rh8+ Kf7 13.Qxf5+ exf5 14.Rxd8 Nc6 15.Rh8 Ne7 16.Rh7+ Kf6 17.Re1 Be6 18.Rh6+ Ng6 19.Rxg6+ Kxg6 20.Rxe6+ Kf7 21.Re5 Kf6 22.Kf2 b6 23.d5 Rh8 24.Re6+ Kf7 25.h3 b5 26.Ra6

2. +- (1.51): 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Nxg6 Nxg6 5.Bxg6 Re7 6.Be4+ Kh8 7.dxc5 Bd7 8.Bxb7 Rb8 9.Rab1 Qc7 10.c6 Bxc6 11.Bxc6 Rxb1 12.Rxb1 Qxc6 13.Rb8+ Re8 14.Rxe8+ Qxe8 15.c4 Qc6 16.Qh5 Kg8 17.Qb5 Bd4+ 18.Kh2 Qxb5 19.cxb5 Kf7 20.Kg3 Kg6 21.Bf8 Kf5 22.Kf3 h5 23.Bd6 Bb6 24.Be5 Bg1 25.g3 Bc5 26.a4 Bb6

3. +/- (0.76): 1.Rf3 Bg7 2.Rh3 f5 3.Qg3 Bxh6 4.Rxh6 Qe7 5.Nxg6 Qg7 6.Ne5 Qxg3 7.hxg3 cxd4 8.cxd4 Nc6 9.Bb5 Re7 10.Bxc6 bxc6 11.g4 fxg4 12.Rb1 Bb7 13.Rh4 Rg7 14.Rxg4 Rxg4 15.Nxg4 Ba6 16.Ne5 Rf8 17.g3 Bb5 18.Rc1 Rd8 19.Nxc6 Bxc6 20.Rxc6 Rxd4 21.Ra6

(Dart, 30.12.2012)

Note that the results shown here are from Stockfish on 8 cores for almost 15 hours. I think I'll let Critter look at this one deeply, to see if it agrees that h4 is almost equal to Bxg6.

I had some 10 hours+ datapoints on this one, because some testversions would choose h4 and others Bxg6. Scores were considerably higher than the 1.51 for h4 that Houdini shows.

This one picks Bxg6:

rnbqr1k1/pp3p1p/4pbpB/2p1N3/3P1PQ1/2PB4/P5PP/R4RK1 w - -

Engine: Rainbow Serpent Experimental Build 84 (512 MB)
by Tord Romstad, Marco Costalba and Joona Kiiski
.
.
.
.
.
30/59 5:58 +1.57 1.Rad1 Nc6 2.Kh1 cxd4 3.cxd4 Qc7
4.Be4 Rd8 5.Bxc6 bxc6 6.Bg5 Bg7
7.Bxd8 Qxd8 8.Qf3 Ba6 9.Nxc6 Qf8
10.Rfe1 Bc4 11.Ne7+ Kh8 12.Rc1 Bxa2
13.Rc2 Rd8 14.Qb7 (715.175.093) 1995

31/59 7:40 +1.65++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Bxg5 5.fxg5 Re7 6.Qh6+ Kg8
7.g6 e5 8.Rf7 Rxf7 9.gxf7+ Kxf7
10.Rf1+ Kg8 11.Qg6+ Kh8 12.Qh5+ Kg8
13.Rf7 Bf5 14.Qxf5 (922.672.721) 2003
.
.
.
.
.
42/97 292:18 +4.52++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 Nd7
10.Qg5+ Kf7 11.f5 exf5 12.Qxf5+ Nf6 (43.036.482.253) 2453

42/97 323:47 +4.60++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 Nd7 (47.736.151.662) 2457

42/97 343:45 +4.20 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 Nd7
10.Qg5+ Kf7 11.f5 exf5 12.Qxf5+ Nf6
13.Qxc5 Bd7 14.Rf1 (50.604.339.265) 2453

43/97 378:29 +4.28++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 (55.824.349.355) 2458

43/98 593:03 +4.36++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 cxd4
10.cxd4 Nd7 (89.588.703.942) 2517

43/99 681:49 +4.48++ 1.Bxg6 hxg6 2.Nxg6 fxg6 3.Qxg6+ Kh8
4.Bg5 Rf8 5.Rf3 Bxg5 6.Rh3+ Bh4
7.Qh6+ Kg8 8.Rxh4 Qxh4 9.Qxh4 cxd4
10.cxd4 Nd7 (104.380.993.527) 2551

43/99 742:37 +4.66++ 1.Bxg6 fxg6 2.Nxg6 e5 3.f5 hxg6
4.Qxg6+ (114.172.667.951) 2562

best move: Bd3xg6 time: 896:48.223 min n/s: 2.562.393 nodes: 114.172.667.951

This one did not find it and goes for h4. Differences were small but I wrote down that took build 84 and not 88 as the basis of later builds, even though it is not quick in finding Bxg6, more on the basis of the code. I don't see much difference in the scores between these two moves.

rnbqr1k1/pp3p1p/4pbpB/2p1N3/3P1PQ1/2PB4/P5PP/R4RK1 w - -

Engine: Rainbow Serpent Experimental Build 88 (512 MB)
by Tord Romstad, Marco Costalba and Joona Kiiski
.
.
.
.
.
26/47 2:33 +1.85 1.Rad1 cxd4 2.Kh1 Qe7 3.cxd4 Bd7
4.Bc4 Nc6 5.Nxd7 Qxd7 6.d5 Nd4
7.dxe6 Rxe6 8.Bxe6 Qxe6 9.Qxe6 fxe6
10.Rc1 Nf5 11.Bg5 Bxg5 12.fxg5 Re8
13.Rc7 Re7 14.Rxe7 (296.980.453) 1935

27/47 3:13 +1.93++ 1.h4 cxd4 2.h5 dxc3 3.hxg6 Qb6+
4.Rf2 fxg6 5.Bc2 Bxe5 6.fxe5 Qa5
7.Qf4 Qc7 8.Qf6 b5 9.a4 (373.057.060) 1932

27/47 3:15 +2.02++ 1.h4 cxd4 2.h5 dxc3 3.hxg6 Qb6+
4.Rf2 fxg6 5.Bc2 Bxe5 6.fxe5 Qa5
7.Qf4 Qc7 8.Qf6 b5 9.a4 bxa4 10.Bxa4 a6
11.Bxe8 a5 12.Bxg6 hxg6 13.Qxg6+ Qg7
14.Bxg7 (377.902.442) 1930

27/47 3:18 +2.14++ 1.h4 cxd4 2.h5 dxc3 3.hxg6 Qb6+
4.Rf2 fxg6 5.Bc2 Bxe5 6.fxe5 Qa5
7.Qf4 Qc7 8.Qf6 b5 9.Rb1 Bb7 10.Rxb5 Qc6 (383.166.885) 1929

27/47 3:23 +2.32++ 1.h4 cxd4 2.h5 dxc3 3.hxg6 Qb6+
4.Rf2 hxg6 5.Nxg6 Re7 6.Nxe7+ Kh8
7.Nxc8 c2 8.Nxb6 c1Q+ 9.Rxc1 axb6
10.Qxe6 fxe6 11.a3 Rxa3 12.g3 Rxd3
13.Bg5 Nd7 14.Bxf6+ (391.832.796) 1928

27/47 3:28 +2.59++ 1.h4 cxd4 2.h5 Re7 3.hxg6 hxg6
4.Rad1 Qb6 5.Kh1 dxc3 6.Nxg6 fxg6
7.Qxg6+ Kh8 8.Qxf6+ Rg7 (401.513.784) 1928

27/47 3:35 +3.00++ 1.h4 (415.401.620) 1929

27/47 5:15 +2.54 1.h4 Bg7 2.h5 Qc7 3.Bxg7 f5 4.Qh4 Qxg7
5.hxg6 hxg6 6.Rf3 Nc6 7.Nxg6 Qh7
8.Rg3 Qxh4 9.Nxh4+ Kf7 10.dxc5 Rg8
11.Rh3 Kg7 12.Nf3 Rh8 13.Rxh8 Kxh8
14.Rb1 (620.807.053) 1969

28/54 5:39 +2.62++ 1.h4 Bg7 2.h5 Qc7 3.Bxg7 f5 4.Qg5 Qxg7
5.hxg6 Nc6 6.gxh7+ Kf8 7.h8Q+ Qxh8
8.Ng6+ (670.313.619) 1976

28/54 5:43 +2.70++ 1.h4 Bg7 2.h5 Qc7 3.Bxg7 f5 4.Qg5 Qxg7
5.hxg6 hxg6 6.Rf3 Nc6 7.Nxg6 cxd4
8.Rh3 dxc3 9.Bc4 Qd4+ 10.Kh2 Qg7
11.Rh8+ Qxh8+ 12.Nxh8+ Kh7 13.Qf6 Rxh8
14.Qf7+ (679.574.480) 1975
.
.
.
.
38/77 249:32 +4.14++ 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Bxg6 hxg6
5.Rf3 cxd4 6.Nxg6 Nf5 7.Ne5+ Ng7
8.Rh3 Qe7 9.Qg6 Bxe5 10.Bg5 Bxf4
11.Bxe7 Rxe7 12.cxd4 e5 13.g4 Bd7
14.dxe5 (31.038.445.760) 2072

38/77 270:37 +4.41++ 1.h4 (33.767.003.569) 2079

38/77 293:38 +3.91 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Bxg6 hxg6
5.Rf3 cxd4 6.Nxg6 Nf5 7.Ne5+ Ng7
8.Rh3 Qe7 9.Qg6 Bxe5 10.Bg5 Bxf4
11.Bxe7 Rxe7 12.cxd4 e5 13.g4 Re6
14.Qe4 (36.617.908.238) 2078

39/77 313:20 +4.00++ 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Bxg6 hxg6
5.Rf3 cxd4 6.Nxg6 Nf5 7.Ne5+ Ng7
8.Rh3 Qe7 9.Qg6 (39.132.022.654) 2081

39/77 325:14 +4.08++ 1.h4 Nc6 2.h5 Ne7 3.hxg6 fxg6 4.Bxg6 hxg6
5.Rf3 b5 6.Nxg6 (40.672.614.675) 2084

39/82 344:45 +4.20++ 1.h4 (43.210.935.146) 2088

39/82 402:12 +4.38++ 1.h4 Nc6 2.h5 Ne7 3.Bxg6 fxg6 4.hxg6 hxg6 (50.438.822.785) 2090

39/84 443:27 +4.44 1.h4 Nc6 2.h5 Ne7 3.Bxg6 fxg6 4.hxg6 hxg6
5.Nxg6 Nf5 6.Ne5+ Ng7 7.Rf3 Rf8
8.Rh3 Bd7 9.d5 Rf7 10.Nxf7 exd5
11.Qg6 (56.002.984.938) 2104

40/84 495:03 +4.44 1.h4 Nc6 2.h5 Ne7 3.Bxg6 fxg6 4.hxg6 hxg6
5.Nxg6 Nf5 6.Ne5+ Ng7 7.Rf3 Rf8
8.Rh3 Bd7 9.d5 Rf7 10.Nxf7 exd5
11.Qg6 Bf5 12.Nxd8 Bxg6 13.Nxb7 Rb8
14.Nxc5 (62.761.680.426) 2112

best move: h2-h4 time: 599:20.898 min n/s: 2.112.928 nodes: 62.761.680.426

[jdart]

Fixed the origin info for one position. I also replaced two positions I thought were too easy (241 and 242) with more interesting ones:

diffs:

Code: Select all

9c9
< 8/1B6/3r2p1/5p1p/5P1P/4k1P1/8/6K1 b - - bm g5; id "arasan15.209"; c0 "R. Kholmov, 1973";
---
> 8/1B6/3r2p1/5p1p/5P1P/4k1P1/8/6K1 b - - bm g5; id "arasan15.209"; c0 "Felgaer-Dominguez, Capablanca mem Elite 2004"; c1 "Speelman, Endgame Preparation, p. 95, 162"; c2 "Speelman endgame test #55";
18c18
< 8/1r1q3k/6p1/5p1p/P3pQ2/3p3P/1B3RP1/6K1 w - - bm g4; id "arasan15.218"; c0 "PTG1204 (Houdini 2.0c Pro)-Mortal_Sin (BlackMamba 1.1.117), playchess.com 2012";
---
> 8/1r1q3k/6p1/5p1p/P3pQ2/3p3P/1B3RP1/6K1 w - bm g4; id "arasan15.218"; c0 "PTG1204 (Houdini 2.0c Pro)-Mortal_Sin (BlackMamba 1.1.117), playchess.com 2012"; 
41,42c41,42
< 1rbq1b1r/ppN2kpp/2nPp3/2p2p2/4pB2/4P3/PPP1NPPP/R2QK2R w KQ - bm g4; id "arasan15.241"; c0 "Ivanchuk-Jobava, Capablanca Memorial Elite 2005";
< r2q1r1k/ppp1n2p/4P1p1/2Pp1PB1/1PB1N3/8/P5KP/3Q4 b - - bm h6; id "arasan15.242"; c0 "Van Wely-Radjabov, Biel GM 2007";
---
> r1b2r1k/4qp1p/p2ppb1Q/4nP2/1p1NP3/2N5/PPP4P/2KR1BR1 w - - bm Nc6; id "arasan15.241"; c0 "Kholmov-Bronstein, URS-ch32 Kiev 1964";
> 8/5ppk/5P2/7p/pP2n1P1/2P1pQ1P/1P1qB2K/8 b - - bm a3; id "arasan15.242"; c0 "Polovodin-Zhelnin, Jurmala Zenith-ch 1980";

latest draft:

Code: Select all

r3k3/1p4p1/1Bb1Bp1p/P1p1bP1P/2Pp2P1/3P4/5K2/4R3 w - - bm g5; id "arasan15.201"; c0 "Nakamura-Giri, FIDE Grand Prix, London 2012";
1r1rb1k1/5ppp/4p3/1p1p3P/1q2P2Q/pN3P2/PPP4P/1K1R2R1 w - - bm Rxg7+; id "arasan15.202"; c0 "Vescovi-Gschwendtner, Groningen op 1994 (Aemis Test Suite #30)";
1r1q1rk1/4bp1p/n3p3/pbNpP1PB/5P2/1P2B1K1/1P1Q4/2RR4 w - - bm Ne4; id "arasan15.203"; c0 "Rybka 4.1 SE42 x64-Komodo64 SSE Version 4, Clash of the Titans 2012";
r1br2k1/1p2bppp/pq6/2p1p3/1BPpBPn1/1P1N2P1/P1QPP2P/RN2R1K1 b - - bm Qh6; id "arasan15.204"; c0 "Quazar 0.4-Deep Hiarcs 14, 4CPU match 2012 (G. Banks)";
r1bq1rk1/pp2bppp/1n2p3/3pP3/8/2RBBN2/PP2QPPP/2R3K1 w - - bm Bxh7+; id "arasan15.205"; c0 "Trent-Deslandes, Cap d'Agde CCAS op 2008";
r6k/N1Rb2bp/p2p1nr1/3Pp2q/1P2Pp1P/5N2/P3QBP1/4R1K1 b - - bm Bh3; id "arasan15.206"; c0 "Persson-Gerhardt, Simon Webb mem email 2007";
r1b2rk1/1pq1nppp/pbn1p3/8/3N4/3BBN2/PPP1QPPP/3R1RK1 w - - bm Bxh7+; id "arasan15.207"; c0 "Leu-Muck, DDR-ch H137 corr 1973";
3r1rk1/1b2qp1p/1p3np1/1N1p4/6n1/2NBP1K1/PBQ2PP1/3RR3 b - - bm d4; id "arasan15.208"; c0 "KingOfJungle (Deep Fritz 13)-Branstonbear (Houdini 2.0c Pro), playchess.com 2012";
8/1B6/3r2p1/5p1p/5P1P/4k1P1/8/6K1 b - - bm g5; id "arasan15.209"; c0 "Felgaer-Dominguez, Capablanca mem Elite 2004"; c1 "Speelman, Endgame Preparation, p. 95, 162"; c2 "Speelman endgame test #55";
r3r2k/ppq3np/2p3p1/NPPp1bb1/P2Pnp2/3B1P2/2Q3PP/1RN1BRK1 b - - bm Ng3; id "arasan15.210"; c0 "Zambrana-Krush, 2nd American Continental 2003";
7k/5rp1/3q1p1p/2bNpQ1P/4P1P1/8/1R3PK1/8 w - - bm g5; id "arasan15.211"; c0 "Blackborn (Houdini 2.0c Pro)-Eroe Inrico (Gull II beta 2), playchess.com 2012";
4r3/4r3/1ppqpnk1/p3Rp1p/P2P1R1Q/2PB2P1/1P3P2/6K1 w - - bm Bxf5+; id "arasan15.212"; c0 "Jernjoffen (Naum 4)-Redboy (Cyclone 3.4), playchess.com 2009";
8/5q2/4kp1p/7R/6P1/5P2/6K1/8 w - - am Rxh6; id "arasan15.213"; c0 "Salov-Korchnoi, Wijk aan Zee 1997";
3R4/5p2/3b4/2q1p3/8/pP5Q/1k3P2/1B3K2 b - - bm Qd4; id "arasan15.214"; c0 "TrojanKnight-Arasan, freechess.org 2012";
r3nrk1/1pqbbppp/p2pp3/2n1P3/5P2/2NBBNQ1/PPP3PP/R4RK1 w - - bm Bxh7; id "arasan15.215"; c0 "Wedberg-Ionescu, Berliner Sommer 1998";
rnb2rk1/pp2qp1p/4p1pQ/3pP2P/5P2/3B4/P1P2BP1/R4RK1 w - - bm g4; id "arasan15.216"; c0 "Weldi2112 (Houdini 2.0c Pro)-Dinkelberger (Stockfish 2.3 JA), playchess.com 2012";
8/2N5/1P2p3/5bPk/1q3b2/3Bp2P/2P5/6QK b - - bm Kh4; id "arasan15.217"; c0 "Pinvoy (Houdini 1.5a)-Pawnattack (Houdini 2.0c Pro), playchess.com 2012";
8/1r1q3k/6p1/5p1p/P3pQ2/3p3P/1B3RP1/6K1 w - bm g4; id "arasan15.218"; c0 "PTG1204 (Houdini 2.0c Pro)-Mortal_Sin (BlackMamba 1.1.117), playchess.com 2012"; 
5r2/3rkp2/2R2p2/p2Bb2Q/1p2P2P/4q1P1/Pp6/1K1R4 b - - bm b3; id "arasan15.219"; c0 "Hotmorphy (Deep Shredder 9)-Mr Blue Sky (HIARCS 12), playchess.com 2012";
1kr4r/1p1bppb1/q1np1n2/p1p2PBp/2P5/P1NP2PP/1P1QN1B1/1R3R1K w - - bm b4; id "arasan15.220"; c0 "The Viper (Rybka 3 Dynamic x64)-Jernjoffen (Naum 4), playchess.com 2009";
2r2rk1/1b1pq1pp/4p2n/pP6/2PQ1p1P/P4P2/4NKP1/RB5R b - - bm Ng4+; id "arasan15.221"; c0 "Johnny 4.00 8CPU-Chiron 1.1a 8CPU, Super Tournament 2012 (G. Banks)";
4r1k1/1p4p1/p1qBp1Qp/b1pnP3/8/5NP1/1P3PKP/3R4 w - - bm Rxd5; id "arasan15.222"; c0 "NVV5 (Houdini 2.0b Pro)-Deep Butterfly (Deep Fritz 13), playchess.com 2012";
3n4/5k2/8/2p1B1pp/1pP1Pp2/1P1K1P1P/8/8 b - - bm Kg6; id "arasan15.223"; c0 "Bronstein-Botvinnik, World Championship (m/10), Moscow 1951";
8/2p5/2k1P3/3p4/6P1/1K5P/8/8 w - - bm Kb4; id "arasan15.224"; c0 "V. Aberman, 2011";
2k3rr/pp6/2nnbN2/q1p1p2p/P1P1PpP1/2PB3P/3BQ1P1/RR4K1 b - - bm Rg7; id "arasan15.225"; c0 "Bern-Elwert, 50 Years Jubilee cr 1994";
r5k1/2r2p2/2Pq2p1/pp1p1p2/3QbP2/1NR5/P5PP/2R3K1 w - - bm Rh3; id "arasan15.226"; c0 "Gelfand-Karpov, 12th Linares 1994";
8/pb3pk1/1p1q1nnp/r3p1p1/3p4/1B1Q1PP1/PPR4P/1K2R1N1 b - - bm e4; id "arasan15.227"; c0 "Shirov-Ivanchuk, Linares 1998";
r1b2rk1/1p4p1/p1n1p3/3p1pB1/NqP3n1/b2BP3/1PQN1P1P/1K4RR w - f6 bm Rxg4; id "arasan15.228"; c0 "Van Oosterom-Plomp, Korning mem 1998";
q2rn1k1/1b3p1p/1p4p1/2n1B1P1/r1PN3P/P4P2/4Q1B1/3RR1K1 w - - bm Bf6; id "arasan15.229"; c0 "Tarnowiecki-Timmerman, Millennium Email 2000";
8/1Kp2rkp/1pR5/pPb3p1/P2p2P1/3R1P2/8/8 w - - bm Rd1; id "arasan15.230"; c0 "Umansky-Rittner, World Champions Jubilee 2001";
3n1bk1/3nrp1p/3p1QpP/1q1P4/1p2N3/4BN2/1P3PP1/4R1K1 w - - bm Ra1; id "arasan15.231"; c0 "Van Oosterom-Bang, Elite Grandmasters Jubilee ICCF 2002";
8/5pk1/7p/P4RpP/6P1/6K1/5P2/r7 w - - bm Kh2 Kg2; id "arasan15.232"; c0 "Leko-Anand, Linares 2003";
r2q1rk1/2p2ppp/pb1p1n2/n3p3/P2PP3/2P2NN1/R4PPP/2BQ1RK1 w - - bm Bg5; id "arasan15.233"; c0 "Carlsen-Beliavsky, Corus-B Wijk aan Zee 2006";
nqr3k1/3b1p2/p2p2pp/1p1Pp1N1/1P2P3/1B5P/P2Q1PP1/5RK1 w - - bm Ne6; id "arasan15.234"; c0 "Anand-Carlsen, Morelia/Linares 2007";
1r2rbk1/1p1n1p2/p3b1p1/q2NpNPp/4P2Q/1P5R/6BP/5R1K w - h6 bm Ng3; id "arasan15.235"; c0 "Carlsen-Anand, Corus Wijk aan Zee 2008";
2br4/4kppp/p1B1p3/4r3/1P2P3/2R3P1/4PK1P/R7 w - - bm b5; id "arasan15.236"; c0 "Anand-Wang Yue, Linares 2009";
1qr3k1/4Qpp1/p3p2p/1p2b3/2n1B3/2P3P1/PP5P/1K1RR3 b - - bm b4; id "arasan15.237"; c0 "Shirov-Kramnik, Linares 1997";
8/3n4/2n3pp/1p1kp3/5P1N/4K1P1/1B5P/8 b - - bm Nb6; id "arasan15.238"; c0 "Alekhine-Reshevsky, Nottingham 1936";
3q1rk1/5np1/p2p4/P1p2PP1/2P1Pp2/3R1N2/r7/4Q1RK w - - bm Qh4; id "arasan15.239"; c0 "Leko-Grischuk, World Championship, Mexico City (8) 2007";
8/8/8/R7/5p2/2p5/5k2/1K3b1B w - - bm Bb7; id "arasan15.240"; c0 "Richard Becker, NONA 2007, miniatures, 2007 Prize";
r1b2r1k/4qp1p/p2ppb1Q/4nP2/1p1NP3/2N5/PPP4P/2KR1BR1 w - - bm Nc6; id "arasan15.241"; c0 "Kholmov-Bronstein, URS-ch32 Kiev 1964";
8/5ppk/5P2/7p/pP2n1P1/2P1pQ1P/1P1qB2K/8 b - - bm a3; id "arasan15.242"; c0 "Polovodin-Zhelnin, Jurmala Zenith-ch 1980";
8/2k5/2PrR1p1/7p/5p1P/5P1K/6P1/8 w - - bm Rxd6; id "arasan15.243"; c0 "Topalov-Short, Madrid Magistral 1997"; c1 "mate in 36";
8/4bBpp/3p4/P6P/2PN2p1/3k1b2/P7/6K1 w - - bm h6; id "arasan15.244"; c0 "Timman, 1c Corus {m} 2008";
8/8/8/2p1p3/8/pK6/1N6/1k4N1 w - - bm Nc4; id "arasan15.245"; c0 "V. Vlasenko, Sp.Prize, A.Guljaev & R.Kofman MT, 2009";
8/8/2B3r1/PP1PkpNp/2b4P/8/7K/8 w - - bm Nf7+; id "arasan15.246"; c0 "Mamedyarov-Bacrot, Baku FIDE GP 2008";
8/3r2p1/pR5p/5P1K/P4kP1/8/8/8 b - - bm a5; id "arasan15.247"; c0 "Critter-Sting SF, The Elite II 64 bit 1 CPU 2012";
r1b1r1k1/pp3ppp/4p1n1/q1ppP1B1/6QP/P1PB3R/2P1KPP1/R7 w - - bm h5; id "arasan15.248"; c0 "Bologan-Vaganian, EU Club Cup 2006";
2nq2rb/3pr2k/1pp1p2p/p3Pp1B/3P1P2/PPN5/5Q1P/R5RK w - - bm Ne4; id "arasan15.249"; c0 "Kasparov-Jussupow, URS-ch49 Frunze 1981";
8/k3qrpR/1p1p4/p2QpPp1/P1P1P1K1/1P6/8/8 w - - bm b4; id "arasan15.250"; c0 "Keres-Euwe, Netherlands (m/6) 1940";

[Paloma]

Fixed the origin info for one position. I also replaced two positions I thought were too easy (241 and 242) with more interesting ones:

diffs:
9c9 << ?????
< 8/1B6/3r2p1/5p1p/5P1P/4k1P1/8/6K1 b - - bm g5; id "arasan15.209"; c0 "R. Kholmov, 1973";
---
> 8/1B6/3r2p1/5p1p/5P1P/4k1P1/8/6K1 b - - bm g5; id "arasan15.209"; c0 "Felgaer-Dominguez, Capablanca mem Elite 2004"; c1 "Speelman, Endgame Preparation, p. 95, 162"; c2 "Speelman endgame test #55";
18c18 << ?????
< 8/1r1q3k/6p1/5p1p/P3pQ2/3p3P/1B3RP1/6K1 w - - bm g4; id "arasan15.218"; c0 "PTG1204 (Houdini 2.0c Pro)-Mortal_Sin (BlackMamba 1.1.117), playchess.com 2012";
---
> 8/1r1q3k/6p1/5p1p/P3pQ2/3p3P/1B3RP1/6K1 w - bm g4; id "arasan15.218"; c0 "PTG1204 (Houdini 2.0c Pro)-Mortal_Sin (BlackMamba 1.1.117), playchess.com 2012";
.........

Why is in 15.218 >> w - bm g4; still in 3rd draft?
I think it should be > w - - bm g4;

Anyway, thanks for your work!

[jdart]

I think it should be > w - - bm g4;

You are right of course. Will correct.

--Jon

[Norm Pollock]

2nq2rb/3pr2k/1pp1p2p/p3Pp1B/3P1P2/PPN5/5Q1P/R5RK w - - bm Ne4; id "arasan15.249"; c0 "Kasparov-Jussupow, URS-ch49 Frunze 1981";

Jussupow has been going by the name Yusupov for many years. I think it is an alternative spelling so his name is pronounced correctly, but it may also be a legal name change.

http://en.wikipedia.org/wiki/Artur_Yusupov