Discussion of anything and everything relating to chess playing software and machines.
Moderators: hgm , Rebel , chrisw
Henk
Posts: 7216 Joined: Mon May 27, 2013 10:31 am
Post
by Henk » Mon Apr 24, 2017 12:15 am
Skipper variation:
Code: Select all
Depth Value Time(seconds) Nodes
140 0.1150 75.31 22274117 b1c3 b8c6 g1f3 g8f6 e2e3 e7e6 f1c4 f8e7 e1g1 e8g8 h2h3 d7d5 c4b5 c8d7
130 0.0940 45.89 13711098 e2e4 e7e6 d2d3 b8c6 a2a3 g8f6 g1f3 b7b5 b1c3 b5b4 a3b4 f8b4 c1d2
120 0.1370 54.63 15386461 e2e3 e7e6 g1f3 g8f6 f1e2 f8b4 e1g1 e8g8 a2a3 b4a5 b2b4 a5b6
110 0.0960 9.51 2756285 g1f3 b8c6 b1c3 g8f6 d2d3 d7d6 a2a3 e7e5 e2e4 c6d4 c3d5
100 0.1130 3.73 1065188 d2d4 g8f6 g1f3 d7d6 b1c3 a7a6 e2e4 b8c6 a2a3 c8g4
90 0.0910 0.48 153160 a2a3 d7d6 d2d3 a7a6 b1c3 g8f6 c1g5 h7h6 g5e3
80 0.1150 0.27 84445 b1c3 b8c6 d2d3 d7d6 e2e4 c6d4 g1f3 e7e5
70 0.0900 0.22 60969 g1f3 d7d6 b1c3 b8c6 d2d3 g8f6 a2a3
60 0.0930 0.04 12854 c2c3 d7d6 g1f3 a7a6 d2d3 b8c6
50 0.2080 0.03 8544 d2d3 d7d6 b1c3 b8c6 g1f3
40 0.0750 0.01 2306 b1c3 d7d6 d2d3 b8c6
30 0.1100 0.00 418 d2d3 d7d6 b1c3
20 0.0210 0.00 297 b1c3 d7d6
10 0.1910 0.00 47 d2d4
Greg Strong
Posts: 388 Joined: Sun Dec 21, 2008 6:57 pm
Location: Washington, DC
Post
by Greg Strong » Mon Apr 24, 2017 1:39 am
That's your standard search of the opening position? If so, the frequency with which the best move changes is suspicious, as is the fact that it includes a2a3.
Ferdy
Posts: 4833 Joined: Sun Aug 10, 2008 3:15 pm
Location: Philippines
Post
by Ferdy » Mon Apr 24, 2017 3:41 am
[d]rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Code: Select all
Deuterium v2017.1.35.388:
1/1 00:00 +0.52 1.Nc3
2/2 00:00 +0.40 1.Nc3 c6
3/4 00:00 +0.70 1.Nf3
3/3 00:00 +0.82 1.Nf3 d6 2.Nc3
4/4 00:00 +0.68 1.Nf3 d5 2.Nc3 c6
5/8 00:00 +0.46 1.Nf3 Nc6 2.Nc3 d6 3.a3
6/12 00:00 +0.05 1.c4 Nf6 2.Nf3 d5 3.Nc3 Nc6 4.cxd5 Nxd5
7/12 00:00 +0.10 1.Nf3 Nc6 2.Nc3 Nf6 3.d3 d6 4.a3
8/14 00:00 +0.05 1.Nf3 Nc6 2.c4 Nf6 3.Nc3 d6 4.d4 Bd7
9/20 00:00 +0.16 1.d4 Nf6 2.Nc3 Nc6 3.d5 Na5 4.Nf3 Nc4 5.e3
10/20 00:00 +0.12 1.d4 Nf6 2.Nc3 Nc6 3.d5 Na5 4.Nf3 h5 5.e3 d6
11/20 00:00 +0.13 1.d4 Nf6 2.Nc3 Nc6 3.d5 Na5 4.Nf3 d6 5.e3 c6 6.a3
12/24 00:00 +0.09 1.d4 Nf6 2.Nc3 e6 3.Nf3 Nc6 4.Bf4 Bd6 5.Bxd6 cxd6 6.d5 Ne5 7.a3
13/25 00:00 +0.23 1.d4 Nf6 2.Nc3 Nc6 3.d5 Ne5 4.Nf3 d6 5.Nxe5 dxe5 6.e4 Bd7 7.Be3 h6
14/28 00:00 +0.18 1.d4 Nf6 2.Nc3 d5 3.Bf4 a6 4.Nf3 Nc6 5.Ne5 Bf5 6.Nxc6 bxc6 7.h3 h6 8.a3
15/29 00:02 +0.20 1.e4 Nc6 2.Nc3 Nf6 3.Nf3 e5 4.Bc4 Bd6 5.0-0 0-0 6.a3 a6 7.d4 b5 8.dxe5 Nxe5 9.Nxe5 Bxe5
16/29 00:03 +0.23 1.e4 Nc6 2.Nf3 Nf6 3.e5 Ng4 4.d4 d6 5.h3 Nh6 6.Nc3 Nf5 7.Bc4 dxe5 8.dxe5 Be6 9.Qxd8+ Rxd8 10.Bxe6 fxe6
17/33 00:04 +0.40 1.e4 Nc6 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Bc4 Nb6 6.Bb5 Be7 7.0-0 0-0 8.d4 d6 9.a3
18/32 00:07 +0.26 1.e4 Nc6 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Bc4 Nb6 6.Bb5 a6 7.Be2 d6 8.0-0 dxe5 9.d3 Be7 10.Be3
19/34 00:09 +0.29 1.e4 Nc6 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Nxd5 exd5 6.d4 d6 7.c3 dxe5 8.dxe5 Be7 9.Bd3 0-0 10.0-0 Bg4 11.Bf4 Re8
20/36 00:30 +0.12 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bc4 Be7 5.0-0 0-0 6.d3 d6 7.Be3 a6 8.Re1 Na5 9.Bd5 c6 10.Bb3 Nxb3 11.axb3
I need to look at my knight pst
.
Henk
Posts: 7216 Joined: Mon May 27, 2013 10:31 am
Post
by Henk » Mon Apr 24, 2017 2:28 pm
Greg Strong wrote: That's your standard search of the opening position? If so, the frequency with which the best move changes is suspicious, as is the fact that it includes a2a3.
It thinks a3 is a good move. Maybe because it wants to protect Nc3 against Bb4. And it knows that the more pawns are on the chessboard the more valuable Knights are.
Code: Select all
Depth Value Time(seconds) Nodes
130 0.0690 51.84 15728048 a2a3 e7e6 b1c3 g8f6 e2e3 f8e7 f1d3 h7h6 g1e2 e8g8 e1g1 b8c6 f2f3
120 0.1010 14.32 3851597 b1c3 b8c6 g1f3 g8f6 e2e3 e7e6 f1e2 f8c5 d2d4 c5b4 e1g1 e8g8
110 0.0360 13.88 4095950 g1f3 g8f6 e2e3 e7e6 f1e2 f8d6 h2h3 b8a6 a2a3 e8g8 e1g1
100 0.0620 1.66 493079 b1c3 d7d6 d2d3 b8c6 e2e4 c6d4 a2a3 a7a6 g1f3 e7e5
90 0.0200 1.08 259115 d2d3 d7d6 b1c3 b8c6 e2e4 c6d4 c1e3 e7e5 g1f3
80 0.1040 0.46 149973 d2d3 d7d6 b1c3 b8c6 e2e4 c6d4 g1f3 e7e5
70 0.1370 0.20 57814 g1f3 d7d6 d2d3 b8c6 b1c3 g8f6 a2a3
60 0.0540 0.06 20115 f2f3 a7a6 b1c3 d7d6 e2e3 b8c6
50 0.1100 0.02 5112 g1f3 d7d6 d2d3 b8c6 b1c3
40 0.0670 0.01 1547 g1f3 d7d6 d2d3 b8c6
30 0.1100 0.00 426 d2d3 d7d6 b1c3
20 0.0220 0.01 269 e2e3 d7d6
10 0.1810 0.04 51 e2e4
Ras
Posts: 2487 Joined: Tue Aug 30, 2016 8:19 pm
Full name: Rasmus Althoff
Post
by Ras » Mon Apr 24, 2017 10:58 pm
Greg Strong wrote: If so, the frequency with which the best move changes is suspicious
No, it just indicates that Skipper doesn't see much of a difference between the starting moves. It's the noise of move generation, sorting and eval.
Ras
Posts: 2487 Joined: Tue Aug 30, 2016 8:19 pm
Full name: Rasmus Althoff
Post
by Ras » Mon Apr 24, 2017 11:04 pm
Henk wrote: It thinks a3 is a good move.
Yes, and that's a bad thing because it wastes a move that would have been used better for development.
Even if Bb4, b2 covers that. If Bb4xNc3, then b2xc3, and White has the pair of bishops, the semi-open b file, Bc1-a3 might keep Black from castling, and the c3 pawn could be traded on c4/d5, giving White more centre pawns.
Henk
Posts: 7216 Joined: Mon May 27, 2013 10:31 am
Post
by Henk » Thu Apr 27, 2017 2:24 pm
Code: Select all
Depth Value Time(seconds) Nodes
150 0.0570 466.04 175754669 a2a3 b8c6 b1c3 a7a6 e2e3 e7e6 d1e2 d7d6 d2d3 g8e7 g1f3 e7d5 c3d5 e6d5 h2h3
140 0.1150 27.48 10975545 b1c3 b8c6 g1f3 g8f6 e2e4 e7e6 f1b5 f8e7 e4e5 f6d5 c3d5 e6d5 e1g1 e8g8
130 0.0750 11.55 3975412 g1f3 b8c6 e2e3 e7e5 b1c3 g8f6 f1d3 f8b4
120 0.0850 9.83 3760686 a2a3 a7a6 b1c3 b8c6 d2d3 g8f6 g1f3 d7d6 c1d2 e7e6 d2c1 e6e5
110 0.0590 3.93 1440000 d2d3 b8c6 a2a3 g8f6 b1c3 a7a6 g1f3 d7d6 c1d2 e7e6 d2c1
100 0.0460 2.17 751134 g1f3 b8c6 b1a3 g8h6 d2d3 h6f5 e2e4 f5d4 c2c3 d4e6
90 0.0650 0.98 402258 a2a3 a7a6 b1c3 b8c6 d2d3 g8f6 g1f3 d7d6 c1d2
80 0.0740 0.33 138159 g1h3 b8c6 b1c3 a7a6 a2a3 c6d4 e2e3 d4f5
70 0.1090 0.18 74058 b1a3 e7e6 a3c4 b8c6 g1h3 b7b5 c4e3
60 0.0640 0.08 34044 g1h3 b8c6 b1c3 c6d4 e2e3 d4f5
50 0.1550 0.02 6267 b1c3 b8c6 g1f3 g8f6 a2a3
40 0.0760 0.01 2747 d2d3 a7a6 b1c3 b8c6
30 0.1100 0.01 432 b1c3 b8c6 g1f3
20 0.0000 0.01 294 b1c3 b8c6
10 0.1610 0.03 45 b1c3
Henk
Posts: 7216 Joined: Mon May 27, 2013 10:31 am
Post
by Henk » Thu Apr 27, 2017 6:42 pm
ha ha ha ha h4
Code: Select all
Depth Value Time(seconds) Nodes
150 0.0450 407.53 131063172 h2h4 a7a6 b1c3 d7d6 g1f3 b8c6 a2a3 g8f6 d2d3 f6g4 c1f4 g4f6 e2e3 e7e6 f1e2
140 0.0820 25.03 8290610 h2h4 a7a6 b1c3 b8c6 a2a3 d7d6 g1f3 g8f6 d2d3 e7e6 c1d2 e6e5 d2e3 h7h6
130 0.1370 24.07 7949520 g1f3 b8c6 e2e3 e7e5 b1c3 g8f6 f1e2 f8b4
120 0.0750 9.21 2999941 d2d4 a7a6 b1c3 g8f6 a2a3 b8c6 g1f3 d7d6 d4d5 c6e5 f3e5 d6e5
110 0.0920 6.16 1879954 e2e4 b8c6 b1c3 d7d6 g1f3 a7a6 a2a3 g8f6 d2d3 e7e6 f1e2
100 0.0420 1.64 505469 e2e3 a7a6 a2a3 b8c6 b1c3 c6e5 d2d4 e5c6 g1f3 g8f6
90 0.0990 0.47 157202 h2h4 a7a6 b1c3 b8c6 a2a3 d7d6 g1f3 g8f6 d2d3
80 0.1210 0.09 35009 a2a3 b8c6 b1c3 g8f6 d2d3 c6d4 g1f3 c7c5
70 0.1500 0.08 32790 b1c3 b8c6 g1f3 g8f6 a2a3 a7a6 d2d3
60 0.0610 0.06 18853 c2c3 a7a6 d2d3 d7d6 g1f3 b8c6
50 0.1300 0.02 6529 a2a3 b8c6 b1c3 g8f6 g1f3
40 0.0470 0.01 2617 f2f3 a7a6 b1c3 b8c6
30 0.1100 0.01 366 g1f3 b8c6 b1c3
20 0.0780 0.01 187 g1f3 b8c6
10 0.1590 0.04 49 d2d3
Ras
Posts: 2487 Joined: Tue Aug 30, 2016 8:19 pm
Full name: Rasmus Althoff
Post
by Ras » Sat Apr 29, 2017 12:04 am
Looks like your static eval would appreciate some improvement...
Henk
Posts: 7216 Joined: Mon May 27, 2013 10:31 am
Post
by Henk » Sat Apr 29, 2017 3:39 pm
If I add more knowledge to evaluation it scores less on the WAC test. That means it would perform worse tactically. And tactics are very important in chess.