a positional test position

Uri Blass · Post by **Uri Blass** » Sun May 09, 2010 8:58 pm

from one of my OTB tournament games.

I played 11...e4

[D]r2qr1k1/pp1n1pp1/2pb1n1p/3ppb2/8/1P1PPNP1/PBPNQPBP/R3R1K1 b - - 0 1 bm e4

Naum seems to be better than rybka and stockfish here.

I believe that rybka and stockfish can also find it after enough time based on comparison of evaluations between analysis before e4 and analysis after e4 but I did not give them enough time.

Uri

zullil · Post by **zullil** » Sun May 09, 2010 11:04 pm

Uri Blass wrote:from one of my OTB tournament games.

I played 11...e4

[D]r2qr1k1/pp1n1pp1/2pb1n1p/3ppb2/8/1P1PPNP1/PBPNQPBP/R3R1K1 b - - 0 1 bm e4

Naum seems to be better than rybka and stockfish here.

I believe that rybka and stockfish can also find it after enough time based on comparison of evaluations between analysis before e4 and analysis after e4 but I did not give them enough time.

Uri

Yes, Stockfish-1.7.1 (8 threads) eventually opts for e4, though based on the decreasing evaluations shown below, I wonder if it would switch away if left to search deeper.

Code: Select all

Searching&#58; r2qr1k1/pp1n1pp1/2pb1n1p/3ppb2/8/1P1PPNP1/PBPNQPBP/R3R1K1 b - -
infinite&#58; 0 ponder&#58; 0 time&#58; 0 increment&#58; 0 moves to go&#58; 0
 2     +1.33   00&#58;01     1005 Nc5 b4 
 3     +1.25   00&#58;01     2535 Nc5 b4 Na4 
 4     +1.41   00&#58;01     4394 Nc5 a3 e4 dxe4 dxe4 
 5     +1.41   00&#58;01     7286 Nc5 a3 e4 dxe4 dxe4 
 6     +1.37   00&#58;01     8510 Nc5 a3 e4 dxe4 Ncxe4 Nxe4 Nxe4 
 7  <  +1.29   00&#58;01    10656 Nc5 a3 e4 dxe4 Ncxe4 Nd4 
 7  <  +1.21   00&#58;01    19001 Nc5 Red1 Qa5 a3 
 7  <  +1.05   00&#58;01    32093 Nc5 Rad1 Qa5 a3 
 7  <  +0.73   00&#58;01    46382 Nc5 Nh4 Bg4 f3 
 7     +0.85   00&#58;01    55822 Bg6 e4 a5 exd5 cxd5 c4 Rc8 
 8     +0.69   00&#58;01    99368 Bg6 e4 a5 Bh3 Bh5 exd5 cxd5 c4 Nc5 
 8     +0.81   00&#58;01   102079 Nc5 Nh4 Bg4 f3 Bd7 e4 Qc8 b4 
 8     +1.09   00&#58;01   110847 e4 dxe4 dxe4 Nh4 Bg4 Qf1 Nc5 Nc4 Bc7 
 9     +0.93   00&#58;01   146974 e4 dxe4 dxe4 Nh4 Bg4 Qf1 Bb4 c3 Be7 h3 Nc5 Nc4 
                              Be6 
10  <  +0.65   00&#58;01   185852 e4 dxe4 Bxe4 Nxe4 Nxe4 Nd4 
10     +0.97   00&#58;01   198749 Nc5 Nh4 Bg4 Bf3 Bxf3 Nhxf3 e4 Nd4 Qd7 b4 Na4 
11  >  +1.09   00&#58;01   269944 Nc5 Nh4 Bg4 Bf3 Bh3 e4 Qc8 
11     +1.05   00&#58;01   292126 Nc5 Nh4 Bg4 Bf3 Bh3 e4 Qc8 a3 g5 Nf5 Bxf5 exf5 
                              Qxf5 b4 
12  <  +0.93   00&#58;01   442193 Nc5 Nh4 Bd7 e4 Qb6 Nhf3 Bg4 h3 Bh5 g4 
12  <  +0.81   00&#58;01   680275 Nc5 Nh4 Bg4 Bf3 Bh3 e4 Qc8 Bg2 Bg4 f3 
12     +0.81   00&#58;01   779411 Nc5 Nh4 Bg4 Bf3 Bh3 e4 Qc8 Bg2 Bd7 Nhf3 Bg4 h3 
                              Bxh3 Bxh3 Qxh3 exd5 cxd5 Nxe5 
13     +0.77   00&#58;01    1167k Nc5 Nh4 Bg4 Bf3 Bh3 Bg2 Bxg2 Kxg2 Qd7 Kg1 Ne6 
                              Nhf3 e4 dxe4 Nxe4 Nxe4 dxe4 
14     +0.81   00&#58;01    1668k Nc5 Nh4 Bg4 Bf3 Bh3 Bg2 Bxg2 Kxg2 g6 Kg1 Rc8 e4 
                              Qa5 Qf3 Kg7 c3 Qd8 
15     +0.81   00&#58;01    2308k Nc5 Nh4 Bg4 Bf3 Bh3 Bg2 Bxg2 Kxg2 g6 Kg1 Rc8 e4 
                              Qa5 Qf3 Kg7 c3 Qa6 c4 
15  >  +0.89   00&#58;02    2490k e4 dxe4 dxe4 Nh4 Bg4 Qf1 g5 Nc4 Bc5 h3 Be6 
15  >  +0.97   00&#58;02    2529k e4 dxe4 dxe4 Nh4 Bg4 Qf1 g5 Nc4 Bc5 h3 Be6 
16  <  +0.73   00&#58;02    3834k Nc5 Bxe5 Rxe5 Nxe5 Bxe5 d4 Bg4 Nf3 
16  <  +0.65   00&#58;02    5274k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Bxc2 Nc4 Bg6 
                              Nd6 
16     +0.69   00&#58;03    7378k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 f3 Bh5 Qf2 Bg6 g4 Rad8 Rad1 
17     +0.65   00&#58;03    8321k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rd8 c4 Ne4 cxd5 Qxd5 Bxe4 Qxe4 Qxe4 
                              Rxe4 
18     +0.57   00&#58;04   11757k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg6 Red1 Qc3 Qd2 Qxd2 Rxd2 a6 a3 Rae8 b4 Be4 
                              Rdd1 Re5 Bxe4 Nxe4 
19  >  +0.69   00&#58;06   24704k Nc5 Nxe5 Bxe5 Bxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rd8 c4 dxc4 bxc4 Qd6 Reb1 c5 
19     +0.61   00&#58;06   24843k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rd8 c4 Ree8 Rac1 dxc4 Qxc4 Qxc4 Rxc4 
20     +0.57   00&#58;07   32490k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rd8 Rec1 Qb6 h3 Bd7 c4 c5 Ne2 Bc6 
                              cxd5 Bxd5 Bxd5 Nxd5 
21  >  +0.65   00&#58;11   51288k Nc5 Nxe5 Bxe5 Bxe5 Rxe5 d4 Re7 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rd8 Rec1 Qb6 h3 Bd7 c4 c5 Ne2 dxc4 
                              Qxc4 Bb5 
21     +0.53   00&#58;11   54606k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg6 c4 dxc4 bxc4 Rad8 Qb2 Qe7 Bf3 a6 c5 Ne4 
                              Bxe4 Bxe4 
22  >  +0.61   00&#58;18   97210k Nc5 Nxe5 Bxe5 Bxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg6 c4 dxc4 bxc4 Rad8 Qb2 Qe7 Bf3 a6 c5 Ne4 
                              Bxe4 Bxe4 
22  >  +0.69   00&#58;26  151303k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg6 c4 dxc4 bxc4 Rad8 Qb2 Re7 Rac1 Ne4 Bf3 
                              Nd6 
22     +0.48   00&#58;26  153179k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rad8 a3 Bh5 b4 Qb6 c4 Bg6 Qc3 dxc4 
                              Qxc4 
22     +0.53   00&#58;34  203494k a5 e4 Bg4 h3 Bh5 a4 Rb8 g4 Bg6 Rad1 Bh7 Nh4 Rc8 
                              Nf5 Bxf5 gxf5 Nc5 Nf3 d4 Rb1 b5 Ra1 Qb6 axb5 cxb5 
                              Reb1 Ncd7 
23  >  +0.61   00&#58;44  266158k a5 h3 a4 e4 Bg6 Nh4 a3 Bc3 d4 Nxg6 fxg6 Nc4 Be7 
23     +0.65   00&#58;48  296078k a5 e4 Bg4 h3 Bh5 a4 Bb4 Ra2 Rc8 Qd1 Qc7 c3 Bc5 
                              Qe2 Bd6 g4 Bg6 Nh4 Bh7 Nf5 Bxf5 exf5 Nc5 
24  <  +0.53   00&#58;57  352083k a5 e4 Bg6 Nh4 Bh5 Bf3 Bxf3 Ndxf3 dxe4 dxe4 Nc5 
                              Rad1 
24     +0.57   00&#58;59  368526k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rad8 a3 Qb6 f3 Bd7 b4 Re5 Rad1 a5 c3 
                              axb4 axb4 
25     +0.57   01&#58;08  422090k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              Nd4 Bg4 Qd3 Rad8 a4 Bh5 a5 Bg6 Qd2 Qe7 b4 Qd7 f3 
                              Re7 a6 b6 Qc3 Rc8 Reb1 c5 bxc5 bxc5 
26  <  +0.48   01&#58;29  562100k Nc5 Bxe5 Bxe5 Nxe5 Rxe5 d4 Re8 dxc5 Qa5 Nf3 Qxc5 
                              c4 Bg4 cxd5 Nxd5 Rac1 Nc3 Qb2 
26  >  +0.65   01&#58;46  673660k e4 dxe4 dxe4 Nd4 Bg6 Nc4 Bb4 c3 Bf8 Rad1 Qc7 g4 
                              Nc5 
26  >  +0.73   01&#58;55  732278k e4 dxe4 dxe4 Nd4 Bg6 a3 Qc7 Nc4 Bf8 b4 a6 Nd2 c5 
26     +0.69   02&#58;02  780774k e4 dxe4 dxe4 Nd4 Bg6 a3 Qc7 Nc4 Bf8 Qf1 Rad8 Ne2 
                              b5 Nd2 a6 Red1 Bh5 Qe1 c5 c4 Qc6 cxb5 axb5 a4 Bd6 
                              axb5 Qxb5 
27  <  +0.57   02&#58;57    1154M e4 dxe4 dxe4 Nd4 Bg6 Nc4 Bb4 Reb1 Nb6 a3 Bh5 Qf1 
27     +0.57   03&#58;40    1434M e4 dxe4 dxe4 Nd4 Bg6 Nc4 Bb4 Reb1 Nd5 a3 Bc3 b4 
                              Bxb2 Rxb2 Qc7 Qf1 Rad8 Nd2 Nc3 a4 Nd5 a5 N5f6 Nc4 
                              Ng4 Rd1 Nde5 Nxe5 Qxe5 h3 Nf6 c4 
28     +0.53   05&#58;29    2175M e4 dxe4 dxe4 Nd4 Bg6 Nc4 Bb4 Rec1 Qc7 a3 Bc5 b4 
                              Be7 Bh3 Bh5 Qd2 Rad8 Nf5 Nb6 Qc3 Nbd5 Nxe7+ Rxe7 
                              Qb3 Bg4 Bxg4 Nxg4 h3 Ngf6 Bxf6 Nxf6 Rd1 Nd5 Rd4 
                              b5 
28     +0.61   07&#58;54    3152M Bg4 h3 Bh5 e4 a5 a4 b6 Qd1 Qc7 Qb1 Bg6 Nh4 Bh7 
                              Qa2 Rad8 Rad1 Nc5 Qa1 Na6 Nhf3 Nb4 Qb1 Rc8 Nh4 
                              Qa7 g4 Qa6 Nf5 Bxf5 exf5 Rcd8 Nf3 
29  <  +0.48   16&#58;06    6554M Bg4 e4 Bh5 a3 Nc5 h3 Ncd7 Rac1 Qb6 Ra1 Qa6 b4 Qa4 
                              Nb3 b6 Qd2 
29  >  +0.73   18&#58;02    7330M e4 dxe4 dxe4 Nd4 Bg4 Qf1 Bb4 c3 Bf8 
29     +0.77   18&#58;43    7610M e4 dxe4 dxe4 Nd4 Bg4 Qf1 Bb4 c3 Bf8 a4 Qc7 Reb1 
                              Rad8 a5 Bh5 a6 b6 b4 c5 Nb5 Qb8 Ba3 Re5 Ra2 Bg6 
                              bxc5 Nxc5 Nc4 Rf5 Nd4 Rfd5 
30  <  +0.57   24&#58;15    9911M e4 dxe4 dxe4 Nd4 Bg4 Qf1 Bb4 c3 
30     +0.53   29&#58;11   11930M e4 dxe4 dxe4 Nd4 Bg4 Qf1 Bb4 c3 Bf8 b4 c5 bxc5 
                              Nxc5 Reb1 Bd7 c4 Na4 Qc1 Rc8 Ba3 Nc5 Qc2 Ba4 N2b3 
                              Qd7 Qc3 Red8 Nxc5 Bxc5 Bxc5 Rxc5 Qb4 b6 Rb2 Bc6 
                              Rab1 Qc8 Rd2 

Nodes&#58; 12525978559
Nodes/second&#58; 6805603
Best move&#58; e4
Ponder move&#58; dxe4

Uri Blass · Post by **Uri Blass** » Mon May 10, 2010 5:24 am

11...e4
12.dxe4 dxe4
13.Nd4 Bg4
14.Qf1 Bb4
15.c3 was the game line(exactly as suggested by engines) and here
I chose 15...Bd6 and not the computer move 15...Bf8 that I also considered.

Uri

yanquis1972 · Post by **yanquis1972** » Mon May 10, 2010 5:36 am

in my mpv-4 search rybka 3 settled on e4 as the top move straight away (by a slim margin) and hasn't deviated:

[-0.40] d=18 1...e4 2.dxe4 dxe4 3.Nd4 Bg4 4.Qf1 Bb4 5.c3 Bf8 6.h3 Bh5 7.b4 c5 8.bxc5 Nxc5 9.Reb1 Rc8 10.a4 a6 11.Ba3 Qd7 12.a5 (0:04:48) 154071kN
[-0.22] d=18 1...Qc7 2.e4 Be6 3.Rac1 Rad8 4.h3 a6 5.Rcd1 a5 6.exd5 cxd5 (0:08:56) 289120kN
[-0.20] d=18 1...a5 2.e4 Bh7 3.a3 Qe7 4.Nh4 Qe6 5.Rad1 Bc7 6.Qf3 Nc5 7.a4 Rad8 8.exd5 cxd5 9.Qe2 (0:07:10) 229570kN
[-0.20] d=18 1...Nc5 2.Rad1 Qc7 3.Nh4 Bg4 4.Bf3 Bd7 5.e4 Rad8 6.a3 Qc8 7.Bg2 Be6 (0:08:33) 274967kN

may have been a lucky smp search or perhaps yours was unlucky.

meschle · Post by **meschle** » Thu May 27, 2010 12:43 am

Rybka 4 better than 3 here

FEN: r2qr1k1/pp1n1pp1/2pb1n1p/3ppb2/8/1P1PPNP1/PBPNQPBP/R3R1K1 b - - 0 1

Rybka 4 x64:
1 00:00 67 67.000 +0.35 Nd7c5 b3b4 e5e4 b4xc5
1 00:00 75 75.000 +0.49 Qd8a5 e3e4
2 00:00 91 91.000 +0.44 Qd8a5 e3e4 Bf5e6 c2c3 Nd7c5
3 00:00 602 602.000 +0.37 Bf5e6 e3e4 Ra8c8 d3d4 Nf6g4 Ra1c1
4 00:00 1.274 79.625 +0.28 Bf5e6 e3e4 Qd8c7 d3d4 Be6g4
4+ 00:00 1.488 93.000 +0.49 e5e4 Nf3d4 Bf5g4
4+ 00:00 1.561 97.562 +0.64 e5e4 Nf3d4 Bf5g4
4 00:00 1.652 103.250 +0.73 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1
5 00:00 1.863 58.218 +0.59 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Ra8c8
6 00:00 2.894 61.574 +0.31 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Qd8c7 h2h3 Bd6b4 c2c3
6 00:00 6.063 64.500 +0.34 Nd7c5 d3d4 e5xd4 Nf3xd4 Bf5g6 Bg2h3 a7a5 Nd4f5 Bd6e5 Bb2xe5 Bg6xf5
7 00:00 7.153 65.027 +0.38 Nd7c5 d3d4 e5xd4 Nf3xd4 Bf5g6 Bg2h3 Qd8a5 Nd4f5 Bg6xf5 Bh3xf5 Bd6e5 Bb2xe5 Re8xe5 Bf5d3
8 00:00 9.974 70.737 +0.31 Nd7c5 d3d4 e5xd4 Nf3xd4 Bf5g6 Bg2h3 Bg6h5 f2f3 Bh5g6 Bh3f5
9 00:00 36.470 83.455 +0.32 Nd7c5 d3d4 e5xd4 Nf3xd4 Bf5g6 Bg2h3 Bg6h5 f2f3 Bh5g6 a2a4 Qd8a5 Nd4f5
10 00:00 57.883 80.616 +0.25 Nd7c5 Nf3xe5 Bd6xe5 Bb2xe5 Re8xe5 d3d4 Re5e8 d4xc5 Qd8a5 Nd2f3 Qa5xc5 Nf3d4 Bf5e4 f2f3 Be4g6 Qe2d2 a7a5 c2c3 Qc5d6 Ra1d1 c6c5 Nd4b5 Qd6e5
10 00:01 132.416 87.461 +0.28 Bf5e6 e3e4 Qd8b6 h2h3 Ra8d8 a2a3 d5d4 Ra1b1 Nd7c5 Nd2c4 Be6xc4 b3xc4 Qb6c7 Qe2d2
11 00:02 233.054 88.378 +0.26 Bf5e6 e3e4 Qd8b6 a2a4 d5d4 a4a5 Qb6b5 Nd2c4 Bd6b4 Nf3d2 Ra8d8 h2h3
12 00:05 497.757 89.621 +0.28 Bf5e6 e3e4 Qd8b6 d3d4 Be6g4 Qe2d3 e5xd4 e4xd5 c6xd5 Nf3xd4 a7a6 c2c3 Nd7e5 Qd3c2 Ne5c6 Nd4f5 Bg4xf5
13 00:14 1.287.358 90.182 +0.21 Bf5e6 e3e4 Ra8c8 h2h3 Qd8c7 Ra1d1 Rc8d8 a2a3 Qc7a5 e4xd5 c6xd5 b3b4 Qa5a4 Rd1c1 a7a5
13 00:15 1.416.083 91.318 +0.25 Nd7c5 Nf3xe5 Bd6xe5 Bb2xe5 Re8xe5 d3d4 Re5e8 d4xc5 Qd8a5 Nd2f3 Qa5xc5 Nf3d4 Bf5e4 f2f3 Be4g6 Qe2d2 a7a5 c2c3 Qc5d6 Ra1d1 c6c5 Nd4b5 Qd6e5
14 00:22 2.016.317 91.926 +0.23 Nd7c5 Nf3xe5 Bd6xe5 Bb2xe5 Re8xe5 d3d4 Re5e7 d4xc5 Qd8a5 Nd2f3 Bf5e4 Nf3d4 Qa5xc5 f2f3 Be4g6 Qe2d2 Qc5a3 Bg2f1 Ra8e8 Bf1d3 c6c5 Nd4b5 Qa3a6 a2a4 Bg6xd3
14 00:24 2.326.472 93.440 +0.24 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Nd7b6 h2h3 Bg4h5 Nd2c4 Nb6xc4 Qf1xc4 Qd8d7 a2a4 a7a5 Bb2a3 Nf6d5 Ba3xd6 Qd7xd6 c2c3 Ra8d8 Nd4f5 Qd6e5
15 00:32 3.025.662 93.650 +0.31 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 Ra1b1 Nd7c5 b3b4 Nc5d3 Nd2xe4 Nd3xe1 Ne4xf6+ Qd8xf6 Rb1xe1 Bh5g6 Re1d1 a7a5 Qf1c4
16+ 00:48 4.862.653 101.235 +0.43 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 Ra1b1 c6c5 Nd4f5 Nd7e5 Nd2xe4 Nf6xe4 Bg2xe4 Bh5f3 Be4c2 Qd8d2 Re1c1 g7g6 Nf5h4
16 00:51 5.115.819 100.408 +0.37 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 Ra1b1 c6c5 Nd4e2 Nd7e5 Re1d1 Ne5d3 Bb2a1 Ra8b8 g3g4 Bh5g6 c3c4 Bf8d6 Ba1xf6 Qd8xf6 Nd2xe4 Bg6xe4 Bg2xe4 Nd3b2 Qf1g2 Nb2xd1
17 00:59 5.998.087 101.688 +0.37 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 Ra1b1 c6c5 Nd4e2 Nd7e5 Re1d1 Ne5d3 Bb2a1 Ra8b8 g3g4 Bh5g6 c3c4 Bf8d6 Ba1xf6 Qd8xf6 Nd2xe4 Bg6xe4 Bg2xe4 Nd3b2 Qf1g2 Nb2xd1
18 01:27 9.118.755 104.008 +0.40 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 a2a4 Qd8c7 a4a5 a7a6 Re1b1 Ra8d8 b3b4 Bh5g6 Bb2a3 Nf6d5 Qf1c4 Nd7e5 Qc4b3
19 02:50 18.331.756 107.580 +0.41 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 a2a4 Qd8c7 a4a5 a7a6 Re1b1 Bh5g6 Nd2c4 Nd7c5 b3b4 Nc5d3 Qf1d1 Nf6d5 Qd1b3 c6c5
20 03:27 22.515.997 108.447 +0.41 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 a2a4 Qd8c7 a4a5 a7a6 Re1b1 Bh5g6 Nd2c4 Nd7c5 b3b4 Nc5d3 Qf1d1 Nf6d5 Qd1b3 c6c5
20 03:41 23.698.285 106.941 +0.41 e5e4 d3xe4 d5xe4 Nf3d4 Bf5g4 Qe2f1 Bd6b4 c2c3 Bb4f8 h2h3 Bg4h5 a2a4 Qd8c7 a4a5 a7a6 Re1b1 Bh5g6 Nd2c4 Nd7c5 b3b4 Nc5d3 Qf1d1 Nf6d5 Qd1b3 c6c5

a positional test position

a positional test position

Re: a positional test position

Re: a positional test position

Re: a positional test position

Re: a positional test position