A test position from the european under 18 championship

[perejaslav]

Analysis by Critter 1.2 64-bit SSE4 GTB:

1. +/= (0.47): 1.Nd3 Nf5 2.e3 Ke6 3.Kc3 Nd6 4.Kb3 Ne4 5.f3 Nc5+ 6.Ka3 Nxd3 7.Rxd3 d4 8.Rxd4 Re5 9.e4 gxh4 10.gxh4 f5 11.Kb3 b5 12.Kc3 fxe4 13.Rxe4
2. = (0.00): 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
3. =/+ (-0.33): 1.Nxh5 Nc6 2.Rd3 Kg6 3.g4 Ne5 4.Rd4 Nxg4 5.Ng3 Nxf2 6.Ke3 gxh4 7.Rxh4 Nd1+ 8.Kd2 Kg5 9.Rh8 Nf2 10.Rg8+ Kf4 11.Nh5+ Ke5 12.Re8+ Kf5 13.Ng3+ Kg6
4. =/+ (-0.41): 1.Ng2 Nc6 2.Rd3 d4 3.Ne1 gxh4 4.gxh4 Rxb4 5.Nc2 Ra4 6.Rb3 Ne5 7.Rb5 Ra2 8.Rb4 Ng4 9.Rxb6 Nxf2 10.Rb5 Kg6 11.Rd5 Ne4+ 12.Kd3 Nc3 13.Rxd4 Nxe2 14.Kxe2 Rxc2+ 15.Ke3 Rc3+ 16.Ke4
5. -/+ (-0.74): 1.Nh3 Nc6 2.Rd3 gxh4 3.Rc3 Ne7 4.Rb3 hxg3 5.fxg3 d4 6.Nf4 Nc6 7.Rf3 Rf5 8.Nd3 Rg5 9.e4 dxe3+ 10.Rxe3 Nd4 11.Nf4 Nf5 12.Re6 b5 13.Rc6 Nxg3 14.Rc7+ Ke8

1.2 version was able to solve it within 6 seconds too...

[EroSennin]

My houdini in my slow computer

FEN: 8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 0 1

Houdini_20_Standard_w32:
4/13 00:00 1 058 1 058 000 +0,38 h4xg5 f6xg5 Nf4xh5 Ne7-c6 Rd4-g4 Rb5xb4 Rg4xg5 Rb4-b2+ Kd2-d3
5/13 00:00 1 450 1 450 000 +0,38 h4xg5 f6xg5 Nf4xh5 Ne7-c6 Rd4-g4 Rb5xb4 Rg4xg5 Rb4-b2+ Kd2-d3
6/15 00:00 2 278 455 000 +0,38 h4xg5 f6xg5 Nf4xh5 Ne7-c6 Rd4-g4 Rb5xb4 Rg4xg5 Rb4-b2+ Kd2-d3
7/18 00:00 4 010 668 000 +0,21 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6xb4 Rd3-a3
8/18 00:00 6 895 861 000 +0,06 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-h3 Rb5xb4
9/22 00:00 22 041 1 224 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
10/22 00:00 29 007 1 381 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
11/24 00:00 45 006 1 022 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
12/24 00:00 67 068 1 156 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
13/24 00:00 103 245 1 290 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
14/29 00:00 175 098 1 496 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
15/29 00:00 289 102 1 661 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
16/29 00:00 512 584 1 824 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
17/32 00:00 877 052 1 919 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
18/33 00:00 1 555 906 2 007 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
19/34 00:01 2 856 302 2 080 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
20/38 00:02 4 726 123 2 116 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
21/38 00:04 8 424 639 2 083 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
22/40 00:07 15 367 804 2 080 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
23/40 00:12 25 270 219 2 096 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
24/46 00:20 41 351 391 2 081 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
25/46 00:37 77 053 285 2 082 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
26/46 00:57 122 704 353 2 124 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
27/48 01:49 235 296 511 2 142 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
28/53 03:24 442 636 441 2 166 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
29/56 05:41 748 340 536 2 190 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
30/56 11:18 1 469 338 852 2 166 000 0,00 h4xg5 f6xg5 Nf4xh5 Kf7-g6 g3-g4 Ne7-c6 Rd4-d3 Nc6-e5 Rd3-d4 Ne5-c6 Rd4-d3
30/62+ 41:48 5 198 970 016 2 072 000 +0,04 Nf4-d3
30/62 42:17 5 251 168 792 2 069 000 +0,04 Nf4-d3 Ne7-c6 e2-e3 Kf7-g6 Kd2-c3 Nc6xd4 e3xd4 Kg6-f5 f2-f3 g5-g4 Kc3-b3 Kf5-g6 f3xg4 h5xg4 Nd3-e1 Kg6-f5 Ne1-d3 Kf5-e4 Nd3-e1 Ke4-f5 Ne1-d3

[Zach Wegner]

Wow, that is a very interesting machine. I hope you won't mind a question about it. I have been interested in finding out how necessary it is to use NUMA-aware memory allocation in such a quad-cpu beast.

Have you compared, for example, Crafty on all 48 cores with and without NUMA libraries to see the speed boost? Does Zappa Mexico use the NUMA memory allocation libraries?

Zappa does have NUMA support, but you need to put "numa 1" in zappa.ini for it to work.

[Uri Blass]

A possible harder test position from the game is one ply earlier and it is to avoid Rb5

[d]8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - 0 49 am Rb5

I am not sure if avoiding Rb5 save the game but it seems that at least white does not have a forced win.

I am not sure about evaluating the knight endgame after Rc4 and did not analyze it.

Did some program solve the harder chess position to avoid Rb5?(or maybe Rc4 is also losing and the program can see a losing score against black after a long time)

[Uri Blass]

A possible harder test position from the game is one ply earlier and it is to avoid Rb5

[d]8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - 0 49 am Rb5

I am not sure if avoiding Rb5 save the game but it seems that at least white does not have a forced win.

I am not sure about evaluating the knight endgame after Rc4 and did not analyze it.

Did some program solve the harder chess position to avoid Rb5?(or maybe Rc4 is also losing and the program can see a losing score against black after a long time)

positions are still hard for stockfish of today.
Analysis of the easier position by stockfish(I check position one ply earlier)

[d]8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 0 1

Stockfish_18101420_x64_modern:
1/1 00:00 77 39k +1.35 1.Nxh5 gxh4
2/2 00:00 122 61k +1.35 1.Nxh5 gxh4
3/3 00:00 203 102k +1.19 1.Nxh5 gxh4 2.Rxh4
4/4 00:00 352 176k +0.53 1.hxg5 fxg5 2.Nxh5 Nc6
5/5 00:00 2k 623k -0.79 1.hxg5 fxg5 2.Nh3 Kf6 3.Ng1
6/7 00:00 3k 990k +0.03 1.Nxh5 Nc6 2.Rd3 gxh4 3.gxh4 Rxb4
7/7 00:00 4k 1,094k +0.17 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Nxb4
8/8 00:00 5k 1,217k +0.17 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Nxb4
9/11 00:00 8k 1,380k +0.19 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Rxb4 5.Rxd5 Rxg4
10/13 00:00 11k 1,432k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
11/10 00:00 15k 1,536k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
12/10 00:00 41k 1,799k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
13/10 00:00 45k 1,892k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
14/10 00:00 54k 2,008k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
15/10 00:00 83k 2,251k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
16/10 00:00 111k 2,406k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
17/10 00:00 146k 2,514k 0.00 1.hxg5 fxg5 2.Nxh5 Kg6 3.g4 Nc6 4.Rd3 Ne5 5.Rd4 Nc6
18/8 00:00 187k 2,600k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
19/8 00:00 285k 2,738k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
20/8 00:00 343k 2,809k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
21/8 00:00 428k 2,835k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
22/12 00:00 671k 3,063k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
23/8 00:00 752k 3,134k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
24/8 00:00 1,414k 3,579k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
25/12 00:00 1,681k 3,694k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
26/8 00:00 2,379k 3,837k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
27/8 00:00 3,215k 3,940k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
28/8 00:01 4,189k 3,900k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
29/8 00:01 5,120k 3,844k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
30/8 00:01 6,716k 3,796k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
31/8 00:02 8,709k 3,847k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
32/8 00:02 11,885k 3,980k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
33/13 00:03 14,645k 4,038k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Kg6 5.g4 Nc6 6.Rd3 Ne5 7.Rd4
34/12 00:04 20,514k 4,138k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
35/8 00:06 28,962k 4,208k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
36/8 00:07 33,119k 4,244k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
37/8 00:11 51,129k 4,281k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
38/8 00:14 62,292k 4,314k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
39/8 00:19 86,104k 4,324k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
40/8 00:38 165,781k 4,275k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
41/8 00:45 195,074k 4,289k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
42/8 00:50 216,154k 4,278k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
43/8 01:13 313,924k 4,292k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
44/8 01:44 449,247k 4,318k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
45/8 01:57 507,570k 4,322k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
46/8 02:05 542,070k 4,326k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
47/8 02:28 640,599k 4,328k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
48/8 03:14 847,532k 4,362k 0.00 1.hxg5 fxg5 2.Nxh5 Nc6 3.Rd3 Ne5 4.Rd4 Nc6
49/49+ 04:36 1,219,984k 4,414k +0.08 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Kg6 4.Kc3 Kf5 5.f3 Ke6
49/49+ 04:50 1,284,082k 4,424k +0.16 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Kg6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6
49/49+ 05:00 1,333,959k 4,435k +0.29 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Kg6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Ke6 8.Ka4 Rc5
49/49+ 05:13 1,392,475k 4,440k +0.48 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6 8.Ka4 Rc5
49/49+ 05:45 1,539,788k 4,463k +0.73 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 Kg6
49/57+ 06:30 1,745,390k 4,465k +1.07 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 Ke6
49/57+ 07:42 2,066,739k 4,471k +1.51 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6 8.Ka4 Kf5
49/59+ 09:31 2,553,194k 4,465k +2.09 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6 8.Ka4 Rxb4+ 9.Kxb4 f5 10.Kb5 f4 11.gxf4 Kf5 12.Kxb6 Kxf4 13.Nh1 Kg4 14.Kc5 Kxh4 15.Kxd5 f2
49/59+ 11:28 3,086,076k 4,483k +2.84 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6 8.Ka4 Rxb4+ 9.Kxb4 f5 10.Kb5 f4 11.gxf4 Kf5 12.Kxb6 Kxf4 13.Nh1 Kg4 14.Kc5 Kxh4 15.Kxd5 Kg4 16.Ke4 Kg5 17.Kxf3 Kf5 18.Ke3 Kg6
49/75+ 17:26 4,732,158k 4,521k +3.80 1.Nd3 Nf5 2.e3 Nxd4 3.exd4 Ke6 4.Kc3 Kf5 5.f3 g4 6.Kb3 gxf3 7.Nf2 Kg6 8.Ka4 Rxb4+ 9.Kxb4 f5 10.Kb5 f4 11.gxf4 Kf5 12.Kxb6 Kxf4 13.Nh1 Kg4 14.Kc5 Kxh4 15.Kxd5 Kg4 16.Ke4 Kg5 17.Kxf3 Kf5 18.Ke3 h4 19.Nf2 Kg6
49/88 39:52 10,487,737k 4,383k +4.36 1.Nd3 Nf5 2.e3 Nd6 3.Kc3 Ne4+ 4.Kb3 Ke6 5.Nc1 Nxf2 6.Ne2 Rc5 7.bxc5 bxc5 8.Ra4 Kf5 9.Nc3 c4+ 10.Kb4 Kg4 11.Nxd5 Kxg3 12.hxg5 fxg5 13.Kxc4 h4 14.e4 Nxe4 15.Kd4 Nd2 16.Ra3+ Kg4 17.Ne3+ Kf4 18.Kd3 Nf3 19.Ra4+ Ke5 20.Ke2 Nd4+ 21.Kf2 Nb3 22.Kg2 Nd2 23.Kh3 Ne4 24.Kg4 Nc3 25.Ra5+ Ke4 26.Nf5 Nd5 27.Nd6+ Kd4 28.Kxg5 h3 29.Nf5+ Ke4 30.Ra4+ Ke5 31.Rh4 h2 32.Rxh2 Ke4 33.Rh4+ Ke5
50/72+ 47:56 12,651,263k 4,398k +4.44 1.Nd3 Nf5 2.e3 Nd6 3.Kc3 Ne4+ 4.Kb3 Ke6 5.Nc1 Nxf2 6.Ne2 Rc5 7.bxc5 bxc5 8.Ra4 Kf5 9.Nc3 c4+ 10.Kb4 Kg4 11.Nxd5 Kxg3 12.hxg5 fxg5 13.Kxc4 h4 14.e4 Nxe4 15.Kd4 Nd2 16.Ra3+ Kg4 17.Ne3+ Kf4 18.Kd3 Nf3 19.Ra4+ Ke5 20.Ke2 Nd4+ 21.Kf2 Nb3 22.Kg2 Nd2 23.Kh3 Ne4 24.Kg4 Nc3 25.Ra5+ Ke4 26.Nf5 Nd5 27.Nd6+ Kd4 28.Ra4+ Ke5
50/72+ 52:53 13,941,223k 4,392k +4.53 1.Nd3 Nf5 2.e3 Nd6 3.Kc3 Ne4+ 4.Kb3 Nc5+ 5.Kc2 Ne4 6.Nc1 Nxf2 7.Ne2 Ng4 8.Nc3 Nxe3+ 9.Kd3 Rc5 10.bxc5 bxc5 11.Ra4 Nf1 12.Nxd5 Nxg3 13.Ra6 Kg7 14.Rxf6 c4+ 15.Kxc4 gxh4 16.Rf4 Kh6 17.Rxh4 Kg5 18.Rh2 h4 19.Kd3 Nf1 20.Rg2+ Ng3 21.Ne3 Kf4 22.Rh2 Kg5 23.Kd4 Nh5 24.Rg2+ Kf6

[Uri Blass]

second position by stockfish 3 cores 1024 mbytes hash

[d]8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - -

Stockfish_18101420_x64_modern:
1/1 00:00 222 111k -0.39 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5
2/2 00:00 358 179k -0.39 49. ... Rc4 50.Rxc4
3/3 00:00 469 235k -0.39 49. ... Rc4 50.Rxc4 dxc4
4/4 00:00 589 295k -0.39 49. ... Rc4 50.Rxc4 dxc4 51.hxg5
5/5 00:00 679 340k -0.39 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5
6/6 00:00 3k 1,279k +0.88 49. ... Rb5 50.hxg5 fxg5 51.Nh3 Kf6 52.g4
7/8 00:00 6k 2,012k +0.14 49. ... Rc8 50.hxg5 fxg5 51.Nh3 Kf6 52.f4 gxf4 53.Nxf4
8/9 00:00 8k 1,918k +0.02 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Kg6 53.g4 Nxb4
9/12 00:00 13k 2,553k +0.04 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 Nd5 53.g4 Nxb4
10/13 00:00 19k 2,782k +0.15 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nxg4
11/13 00:00 29k 2,919k +0.15 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nxg4 55.Rxg4 Kxh5
12/22 00:00 61k 3,027k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
13/11 00:00 75k 3,019k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
14/9 00:00 91k 2,829k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
15/11 00:00 143k 2,604k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
16/9 00:00 227k 2,739k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
17/9 00:00 280k 2,799k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
18/9 00:00 310k 2,817k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
19/9 00:00 495k 2,962k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
20/9 00:00 642k 3,073k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
21/9 00:00 800k 3,161k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
22/9 00:00 1,089k 3,262k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
23/14 00:00 1,452k 3,323k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5 56.Rd4
24/14 00:00 2,058k 3,401k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5 56.Rd4
25/13 00:00 2,399k 3,417k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5
26/9 00:00 3,245k 3,610k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
27/9 00:01 4,016k 3,736k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
28/9 00:01 5,509k 3,899k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
29/9 00:01 7,346k 3,887k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
30/9 00:02 8,892k 3,955k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
31/9 00:03 13,375k 4,043k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
32/9 00:04 17,552k 4,102k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
33/9 00:05 22,986k 4,073k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
34/9 00:07 32,266k 4,143k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
35/9 00:09 40,484k 4,160k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
36/9 00:11 46,850k 4,195k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
37/47 00:26 103,984k 3,993k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
38/13 00:27 109,096k 3,998k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5
39/13 00:30 124,357k 4,017k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5
40/14 00:33 136,077k 4,035k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5 56.Rd4
41/52 01:17 317,474k 4,108k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Nc6
42/45 01:25 356,894k 4,161k 0.00 49. ... Rb5 50.Nxh5 Nc6 51.Rg4 Rxb4 52.Rxb4 Nxb4 53.hxg5 fxg5 54.g4 Kg6 55.Kc3 Nc6 56.f4 b5 57.e3 Kf7 58.fxg5 Kg6 59.Nf4+ Kxg5 60.Nxd5 Kxg4 61.Nb4 Nxb4 62.Kxb4 Kf5 63.Kxb5 Ke5 64.Kc5 Ke4 65.Kc4 Kxe3 66.Kc5 Ke4 67.Kc6 Ke5 68.Kc5 Ke6 69.Kc4 Kd7 70.Kb5 Ke6 71.Kc4
43/52 02:06 537,357k 4,232k 0.00 49. ... Rb5 50.Nxh5 Nc6 51.Rg4 Ne5 52.Rd4 Kg6 53.g4 Nc6 54.Rd3 gxh4 55.Rf3 Kg5 56.Nxf6 Nd4 57.Rd3 Nc6 58.Nxd5 Nxb4 59.Nxb4 Rxb4 60.f3 Kf4 61.Rd5 h3 62.Rh5 Kg3 63.g5 Rb5 64.Ke3 h2 65.Kd4 Kg2 66.Rh8 Rxg5 67.Ke3 Kg3 68.Kd3 Re5
44/14 02:12 561,835k 4,244k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Ne5 53.Rd4 Kg6 54.g4 Nc6 55.Rd3 Ne5 56.Rd4
45/7 02:34 658,303k 4,266k 0.00 49. ... Rb5 50.Nxh5 Nc6 51.Rg4 Ne5 52.Rd4 Nc6
46/7 03:04 795,099k 4,312k 0.00 49. ... Rb5 50.Nxh5 Nc6 51.Rg4 Ne5 52.Rd4 Nc6
47/61 03:54 1,026,914k 4,379k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Nc6 52.Rd3 Kg6 53.g4 Rxb4 54.Rxd5 Rxg4 55.Ng3 Rd4+ 56.Rxd4 Nxd4 57.Kd3 Ne6 58.Kc4 Kf6 59.Kb5 Ke5 60.Kxb6 Nf4 61.e3 Nh3 62.f3 Ng1 63.f4+ gxf4 64.exf4+ Kxf4 65.Nh5+ Kf3 66.Kc5 Ne2 67.Nf6 Ng3 68.Kd4 Kf4 69.Nd5+ Kg5 70.Ke5 Nf5 71.Nf4 Ng7 72.Nh3+ Kg4 73.Ng1 Nf5 74.Nf3 Kxf3 75.Kxf5 Ke3 76.Ke5 Ke2 77.Kd4 Kf3 78.Ke5 Ke3 79.Kf5
48/56 04:59 1,327,480k 4,431k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Kg6 52.g4 Nc6 53.Rd3 Rxb4 54.Rxd5 Rxg4 55.Ng3 Rd4+ 56.Rxd4 Nxd4 57.Kd3 Ne6 58.Kc4 Kf6 59.Kb5 Ke5 60.Kxb6 Nf4 61.e3 Nh3 62.f3 Ng1 63.f4+ gxf4 64.exf4+ Kxf4 65.Nh5+ Kf3 66.Kc5 Ne2 67.Nf6 Ng3 68.Kd4 Kf4 69.Nd5+ Kg5 70.Ke5 Nf5 71.Nf4 Ng7 72.Nh3+ Kg4 73.Ng1 Nf5 74.Nf3 Kxf3 75.Kxf5 Kf2 76.Kf4 Ke2 77.Ke4
49/59 05:59 1,594,978k 4,434k 0.00 49. ... Rb5 50.hxg5 fxg5 51.Nxh5 Kg6 52.g4 Nc6 53.Rd3 Rxb4 54.Rxd5 Rxg4 55.Ng3 Rd4+ 56.Rxd4 Nxd4 57.Kd3 Ne6 58.Kc4 Kf6 59.Kb5 Ke5 60.Kxb6 Nf4 61.e3 Nh3 62.f3 Ng1 63.f4+ gxf4 64.exf4+ Kxf4 65.Nh5+ Kf3 66.Kc5 Ne2 67.Nf6 Ng3 68.Kd4 Kf4 69.Nd5+ Kg5 70.Ke5 Nf5 71.Nf4 Ng7 72.Nh3+ Kg4 73.Ng1 Nf5 74.Nf3 Kxf3 75.Kxf5 Kf2 76.Kg5 Kg2 77.Kg4 Kg1 78.Kf3 Kf1
50/60- 07:01 1,891,917k 4,487k -0.08 49. ... Rb5 50.Nd3 Nf5 51.e3 Nxd4 52.exd4 gxh4 53.gxh4 f5 54.Kc3 Kf6 55.Nf4 Ke7 56.Nxh5 Kd8
50/65 08:05 2,239,824k 4,609k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kd3 Kc5 75.Na3 Kd5 76.Kc3 Kc5 77.Nc2 Kc6
51/59 09:19 2,648,522k 4,730k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kd3 Kc5 75.Ne3 Kb5 76.Kc3 Kc5 77.Nf5 Kb5 78.Nd6+ Kc5
52/58 09:59 2,838,408k 4,733k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd7 Kf4 77.Nc5 Kg4 78.Kb4
53/60 10:58 3,167,307k 4,808k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd7 Kf4 77.Nc5 Kg4 78.Nd3 Kg3 79.Ne5
54/60 11:59 3,484,874k 4,842k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kd3 Kg3 78.Ke4 Kh3 79.Kf3
55/61 12:56 3,778,832k 4,867k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kd3 Kg3 78.Ke3 Kh2 79.Kd4 Kg3
56/61 13:45 4,025,468k 4,874k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kd3 Kg3 78.Ke3 Kg2 79.Ke4 Kh3
57/66 15:37 4,635,344k 4,944k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kd3 Kg3 78.Nc4 Kh2 79.Nd6 Kg2 80.Nf5 Kg1 81.Kc3 Kf2
58/65 16:49 5,025,113k 4,979k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kb5 Kg2 78.Nd5 Kg1 79.Kc4 Kh2 80.Kd3 Kg1 81.Nf4 Kf2
59/65 19:19 5,792,885k 4,997k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Kc4 Kf3 77.Kb4 Ke3 78.Kc3 Kf2 79.Nc4 Kg3 80.Ne5 Kf2 81.Kd3 Kg2
60/67 22:22 6,836,512k 5,093k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd5+ Kf2 77.Kd3 Kg1 78.Nf4 Kh2 79.Kd4 Kg1 80.Kd5 Kh2 81.Ne2 Kg2 82.Kc5 Kf3
61/68 31:09 9,541,909k 5,104k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd5+ Kf2 77.Kd3 Kg1 78.Ne3 Kh1 79.Kd4 Kh2 80.Kd5 Kh1 81.Ke6 Kg1 82.Ke7 Kh1 83.Ng4
62/69 32:28 9,971,009k 5,118k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd5+ Kf2 77.Nb4 Ke3 78.Kc2 Kf3 79.Nd3 Kg3 80.Kc3 Kh2 81.Kd2 Kh1 82.Nf4 Kg1 83.Nh3+ Kh2
63/69 42:19 13,002,467k 5,120k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd5+ Kf2 77.Nb4 Kg3 78.Kd3 Kh2 79.Kd4 Kg2 80.Nd5 Kh1 81.Nc3 Kg2 82.Nb5 Kh1 83.Nd6 Kg1
64/70 48:55 15,304,769k 5,213k -0.09 49. ... Rc4 50.Rxc4 dxc4 51.hxg5 fxg5 52.Nxh5 b5 53.g4 Ke6 54.f4 gxf4 55.Nxf4+ Ke5 56.e3 Nc6 57.Kc3 Ne7 58.g5 Ke4 59.Kd2 Kf5 60.g6 Nxg6 61.Ne2 Ke5 62.Nd4 Ne7 63.Nxb5 Nd5 64.Na3 Nxb4 65.Nxc4+ Kd5 66.Na5 Ke4 67.Nb7 Kd5 68.Ke2 Nc2 69.Na5 Ke4 70.Nc4 Nxe3 71.Nxe3 Kd4 72.Kd2 Ke4 73.Nc4 Kd5 74.Kc3 Ke4 75.Nb6 Ke3 76.Nd5+ Kf2 77.Nb4 Kg3 78.Kd4 Kh2 79.Nd5 Kh1 80.Nc3 Kg2 81.Ke3 Kh2 82.Ne4 Kg1 83.Ke2 Kh1 84.Kd3

[peter]

[d]8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 0 1

BTW Walter Eigenmann took it as nr. 046 in his ERET (Eigenmann Rapid Engine Test)- set.
https://glarean-magazin.ch/2017/03/05/c ... test-eret/

[MikeB]

[d]8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 0 1

BTW Walter Eigenmann took it as nr. 046 in his ERET (Eigenmann Rapid Engine Test)- set.
https://glarean-magazin.ch/2017/03/05/c ... test-eret/

for some reason, it is easier for McCain 10.1 to avoid Rb5 then to find Nd3

Code: Select all

8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - -
dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 46	+0.09 	1.15G	0:32.72	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Nf1+ Kg1 Ke 
 45	+0.09 	1.04G	0:29.80	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Nf1+ Kg1 Kc 
 44	+0.09 	774.7M	0:22.68	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Kd4 Kg3 Kc 
 43	+0.09 	670.9M	0:19.83	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Kd4 Kg3 Kd 
 42	+0.09 	588.3M	0:17.65	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Kd4 Kg3 Kc 
 41	+0.09 	515.1M	0:15.59	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ne3+ Kh3 Kd3 Kh2 Kc2 Kg1 Ng 
 40	+0.09 	499.3M	0:15.13	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ng3+ Kh4 Nf 
 39	+0.09 	393.7M	0:12.11	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ng3+ Kh4 Ne 
 38	+0.09 	380.5M	0:11.72	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ng3+ Kh4 Ne 
 37	+0.09 	350.0M	0:10.86	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ne3 Kh4 
 36	+0.09 	326.2M	0:10.21	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ne3 Kh4 
 35	+0.09 	290.7M	0:09.15	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kf4 Kh5 Ne3 Kh4 
 34	+0.09 	276.1M	0:08.71	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kd5 Kg4 
 33	+0.09 	253.7M	0:08.09	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kd5 Kg4 
 32	+0.09 	237.8M	0:07.62	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Ke5 Kh4 Kd6 
 31	+0.09 	226.1M	0:07.28	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nc6 Kc4 Ne5+ Kd5 Nxg4 fxg4 Kf4 Ne4 Kxg4 Kd4 Kf4 Nd2 Kg4 Ke4 Kg3 Nf1+ Kg4 Kd3 Kf3 Kc4 Ke4 
 30	+0.09 	214.1M	0:06.93	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 b5 g4 Ke6 Ng3 Ke5 f3 Nd5 Ne4 Kf4 Nd6 Nxb4 Nxb5 Na2 Nd4 c3+ Kc2 Ke3 Ne6 Kxe2 Nxg5 Ke3 Kb3 Nb4 Kxc3 Nd5+ Kc4 Ne7 Kc5 Kf4 Kd6 Ng6 Ne4 Kxf3 Nf6 Kf4 Kc5 Kg3 Kd5 Kf4 
 29	+0.53!	174.3M	0:05.73	Rc4 Rxc4 dxc4 hxg5 fxg5 Nxh5 Ke6 b5 Nd5 f3 Ke5 Ng7 g4 fxg4 Nc7 Nf5 Nxb5 Kc2 Ke4 e3 Ke5 Ne7 Nd6 g5 Ne4 g6 Kf6 Nc6! 
 29	+0.73?	138.4M	0:04.55	Rb5 Nd3 Nc6 e3 g4 Kc3 f5? 
 29	+0.48?	106.4M	0:03.51	Rb5 Nd3 Nc6 e3 g4 Kc3 Nxd4 exd4 Kg6 Kb3 Kf5 Ka4 Ke4 Nb2 Rxb4+? 
 29	+0.30?	93.6M  	0:03.08	Rb5 Nd3 Nf5 e3 Ke6 Kc3 Kd6 Kb3 gxh4 gxh4 Nxd4+ exd4 Kc6? 
 28	  0.00 	52.6M  	0:01.75	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 27	  0.00 	34.9M  	0:01.16	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 26	  0.00 	25.6M  	0:00.86	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 25	  0.00 	18.9M  	0:00.63	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 24	  0.00 	11.1M  	0:00.37	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 23	  0.00 	9.03M  	0:00.30	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 22	  0.00 	4.85M  	0:00.16	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 21	  0.00 	3.04M  	0:00.10	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 20	  0.00 	2.99M  	0:00.10	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 19	  0.00 	1.42M  	0:00.05	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 18	  0.00 	1.04M  	0:00.04	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 17	  0.00 	881926	0:00.03	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 16	  0.00 	639517	0:00.02	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 15	  0.00 	252155	0:00.01	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 14	  0.00 	199057	0:00.01	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 13	  0.00 	151971	0:00.01	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 12	  0.00 	101677	0:00.01	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 10	  0.00 	73706  	0:00.00	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc4+ 
  9	+0.09 	40754  	0:00.00	Rb5 hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 
  8	 -0.09 	22448  	0:00.00	Rb5 Nxh5 Nc6 Rd3 gxh4 gxh4 Rxb4 f4 
  7	 -0.09 	18369  	0:00.00	Rb5 Nxh5 Nc6 Rd3 gxh4 gxh4 Rxb4 
  6	 -1.14!	11961  	0:00.00	Rb5! 
  5	 -0.09 	11000  	0:00.00	Rb5 Nxh5 Nc6 Rd3 gxh4 gxh4 
  4	 -1.46 	9704    	0:00.00	Rb5 Ng2 Nc6 Rd3 Nxb4 
  3	+0.10 	7134    	0:00.00	Rb5 Nxh5 Nf5 Rd3 
  2	+0.10 	5384    	0:00.00	Rb5 Nxh5 
  1	+0.53 	4014    	0:00.00	Rc4 Rxc4 
  0	# 



8/4nk2/1p3p2/1r1p2pp/1P1R1N1P/6P1/3KPP2/8 w - - 0 1

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 43	+4.03!	6.72G	3:37.60	Nd3 Ke6 e3 Nf5 Kc2 Nd6 Nc1 Nf5 Ne2 Kd7 Kb3 Nxd4+ exd4 Kd6 Nc3 Rc5 dxc5+ bxc5 b5 d4! 
 42	+2.24!	3.49G	1:53.21	Nd3 Ke6 e3 Nf5 Kc2 Nxd4+ exd4 Kf5 f3 g4 Kb3 gxf3 Nf2 Kg6 Ka4 Rxb4+ Kxb4 f5 Kc3 f4 gxf4 Kf5 Nd3 Ke4 Kd2 f2! 
 41	+0.08!	1.88G	1:00.42	Nd3 Ke6 e3 Nc6! 
 40	  0.00 	1.23G	0:39.17	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 39	  0.00 	911.4M	0:29.30	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 38	  0.00 	807.8M	0:26.08	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc6 
 37	  0.00 	665.2M	0:21.57	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc6 
 36	  0.00 	478.9M	0:15.65	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc6 
 35	  0.00 	343.6M	0:11.25	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 34	  0.00 	272.8M	0:08.97	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 33	  0.00 	200.3M	0:06.66	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 32	  0.00 	136.5M	0:04.52	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 31	  0.00 	92.9M  	0:03.13	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 30	  0.00 	62.6M  	0:02.11	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 29	  0.00 	41.2M  	0:01.39	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Kg6 g4 Na3 Kd2 Nc4+ 
 28	  0.00 	36.0M  	0:01.22	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 27	  0.00 	21.1M  	0:00.72	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 26	  0.00 	12.3M  	0:00.42	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 25	  0.00 	7.90M  	0:00.28	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Kg6 g4 Ne3 fxe3 Kh6 Rd3 Kg6 
 24	  0.00 	4.75M  	0:00.17	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Ke7 g4 Na5 bxa5 bxa5 Kd2 Rb1 Rxd5 Rb2+ Ke3 Rb6 Rxg5 Rb3+ 
 23	  0.00 	3.72M  	0:00.13	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 22	  0.00 	2.75M  	0:00.10	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Ke6 g4 Nd2 Rxd2 d4+ Rxd4 Re5 Ng3 Rb5 
 21	  0.00 	1.90M  	0:00.07	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Ne3 fxe3 Kg6 g4 Kh6 
 20	  0.00 	1.58M  	0:00.06	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Na3 g4 Nc2 Kxc2 Kg6 Ng3 Kg7 Ne4 dxe4 Rxe4 Kg6 Re6+ Kg7 
 19	  0.00 	1.44M  	0:00.05	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Kc3 Ne5 
 18	  0.00 	969095	0:00.04	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 17	  0.00 	735546	0:00.03	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 16	  0.00 	551647	0:00.02	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 15	  0.00 	388364	0:00.02	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 14	  0.00 	332295	0:00.01	hxg5 fxg5 Nxh5 Kg6 g4 Nc6 Rd3 Ne5 Rd4 Nc6 
 13	  0.00 	214111	0:00.01	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
 12	  0.00 	173858	0:00.01	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Nc4+ Ke1 Rxb4 Rxd5 Kg6 
 11	  0.00 	162674	0:00.01	hxg5 fxg5 Nxh5 Nc6 Rd3 Ne5 Rd4 Kg6 g4 Nc6 Rd3 Ne5 
  9	 -0.71 	69945  	0:00.00	Nxh5 Nc6 Rg4 Ne5 Rd4 Kg6 g4 Nc6 Rd3 
  8	  0.00!	23848  	0:00.00	Nxh5! 
  7	 -0.09!	17513  	0:00.00	Nxh5! 
  6	 -0.23!	13061  	0:00.00	Nxh5! 
  5	 -0.25 	9736    	0:00.00	Nxh5 Nc6 Rd3 gxh4 gxh4 
  4	 -0.20 	5782    	0:00.00	Nxh5 Nc6 Rd3 gxh4 gxh4 
  3	+0.40 	3598    	0:00.00	hxg5 fxg5 Nxh5 
  2	+0.40 	2298    	0:00.00	hxg5 fxg5 Nxh5 Nc6 
  1	+1.22 	1140    	0:00.00	Nxh5 
  0	# 

[lech]

[d] 8/4nk2/1p3p2/2rp2pp/1P1R1N1P/6P1/3KPP2/8 b - - avoid Rb5;
It is a very interesting position for "iq" test (will be added).
New Sting (soon) has some new solutions for the trapped pieces problem.