I've uploaded a Win32 compile of my current version (r468): http://www.eglebbk.dds.nl/program/chess-download.html
I don't think it's much stronger than the old version, but there are some improvements. I'm currently running tuning matches, but it seems very hard to improve the current evaluation just by tuning. I guess I should actually get to work on fixing some of the things in there (and adding some of the things that aren't).
The results from the test matches currently linked from your page looks odd to me. In local testing I get ~60% against Fairy-Max. It may just be difference in system setup of course (64 bit Linux vs 32 bit Windows). If that's the case it's something I guess I should look into...
Battle of the Goths 2012 (live broadcast)
Moderators: hgm, Rebel, chrisw
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Re: Battle of the Goths 2012 (live broadcast)
Well, as 468 immediately crashes when I start it, I will stick with 437 for now.
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Re: Battle of the Goths 2012 (live broadcast)
hgm wrote:Well, as 468 immediately crashes when I start it, I will stick with 437 for now.
I can't reproduce it here with Wine:
Code: Select all
$wine xsjaak.exe
#[-]>new
#[Chess] 0w>variant gothic
#[Capablanca chess (Gothic)] 0w>sd 8
#[Capablanca chess (Gothic)] 0w>go
2 5 0 126 Ag1-f3
3 14 0 514 Nb1-c3 Ce8-d6
4 5 3 2216 Nb1-c3 Ag8-f6 Ag1-f3
5 14 4 2982 Nb1-c3 Ag8-f6 Ag1-f3 Ce8-d6
6 6 9 7209 Nb1-c3 Ag8-f6 Ag1-f3 Ce8-d6 Ni1-h3
7 15 28 21598 d2-d4 Nb8-c6 d4-d5 Nc6-b8 Bc1-e3 Ni8-h6
8 4 99 82806 Ag1-f3 Ag8-f6 Ni1-h3 Ni8-h6 Ce1-d3 Ce8-d6 Cd3xd6
move g1f3
#[Capablanca chess (Gothic)] 1b>
EDIT: ok, never mind: it was crashing while printing the list of supported variants in response to the protover command. Fixed now; I've put 469 in the same archive as 468, so downloading it again should give you a working version. It differs only in this respect and I'll do a proper release & update later.
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Re: Battle of the Goths 2012 (live broadcast)
Qualifier - Capablanca variant update.hgm wrote:In a few hours I will start the Battle of the Goths 2012 general 10x8 championship.
Playing conditions:The following engines will participate:Code: Select all
Core 2 Duo 2.4GHz (E6600) WinBoard 4.5TM GUI 128MB hash ponder off 1 CPU 25 min + 1sec/move Replacements are allowed (but no guarantee as to when they can be performed!)
Tournament format:Code: Select all
1. Bihasa Ferdinand Mosca 2. Joker80 H.G. Muller 3. SMIRF Reinhard Scharnagl 4. TJchess10x8 Tony Hecker 5. Nebiyu Daniel Shawul 6. Spartacus H.G. Muller 7. TSCP Gothic Tom Kerrigan / Michel Langeveld 8. Sjaak Evert Glebbeek 9. Fairy-Max H.G. Muller 10.Heretic Martin Sedlak 11.ChessV Gregory Strong 12.ArcBishop80 Matthias Gemuh 13.BigLion80 Matthias Gemuh
The tournament will start with a qualifier, played as a round-robin between numbers 5-10 of the above list. The three top-finishers will join 1-4 for the playoffs, a round-robin of seven. The three lowest-ranked engines of the qualifier will join 11-13 for the second-division, a round-robin of 6. Result from the qualifier will continue to count in the playoffs and second division, i.e. games between engines that both were in the qualifier will not be played again in the playoffs and second division.
There will be 8 games per pairing, from 4 different initial positions, each played with both colors. The initial positions are:
The different setups will be played as 4 consecutive tourney cycles, with 2 consecutive games per pairing each. First all cycles of the qualifier will be played, to decide who qualifies where. Then the remaining games of the second division will be played. Finally the remaining games of the playoffs. These will also be played one opening setup after the other, with two consecutive games per pairing.Code: Select all
rnbqckabnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBCQKABNR w KQkq - 0 1 (Gothic) rnabqkbcnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNABQKBCNR w KQkq - 0 1 (Capablanca) rnbcqkabnr/pppppppppp/10/10/10/10/PPPPPPPPPP/RNBCQKABNR w KQkq - 0 1 (Bird) ranbqkbncr/pppppppppp/10/10/10/10/PPPPPPPPPP/RANBQKBNCR w KQkq - 0 1 (Carrera)
The highest-ranked engine of the playoffs can call itself "Battle-of-the-Goths general 10x8-chess champion 2012".
Games within one cycle will be played automatically through WinBoards intrinsic tournament manager, and can be viewed live through a JavaScript-enabled internet browser at
http://80.100.28.169/gothic/chess.html
This broadcast uses the ChessLive! viewer system, which includes a possibility for the spectators to chat about the game.
Code: Select all
Cross table, sorted by score percentage, Buchholz, SB
Sp ts Ne Fa Sj He
1. Spartacus 1.02 ## 11 11 11 100% 6.0 ( 4.0, 4.0)
2. tscpgothic ## 11 11 1 100% 5.0 ( 8.0, 8.0)
3. NebiyuChess_1.42 00 ## 11 11 67% 4.0 ( 14.0, 4.0)
4. Fairy-Max 4.8R 00 00 ## 11 33% 2.0 ( 20.0, 0.0)
5. Sjaak 437 00 00 00 ## 0% 0.0 ( 26.0, 0.0)
6. Heretic 0.1 00 0 00 ## 0% 0.0 ( 25.0, 0.0)
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Re: Battle of the Goths 2012 (live broadcast)
First cycle of the qualifier has been completed:
TSCP Gothic surprised by beating Nebiyu twice. Fairy-Max did also transcend his usual level by beating Sjaak twice, and TSCP once. Spartacus profited from these unexpected losses of its nearest competitors by taking a firm lead.
In the second cycle, which I just started, we play from the Capablanca setup.
Code: Select all
Sp ts Ne Fa Sj He
1. Spartacus ## 11 10 11 11 11 90% 9.0 ( 42.0, 35.0)
2. tscpgothic 00 ## 11 01 11 11 70% 7.0 ( 46.0, 23.0)
3. NebiyuChess 01 00 ## 11 11 11 70% 7.0 ( 46.0, 23.0)
4. Fairy-Max 00 10 00 ## 11 11 50% 5.0 ( 50.0, 11.0)
5. Sjaak 00 00 00 00 ## 11 20% 2.0 ( 56.0, 0.0)
6. Heretic 00 00 00 00 00 ## 0% 0.0 ( 60.0, 0.0)
In the second cycle, which I just started, we play from the Capablanca setup.
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Re: Battle of the Goths 2012 (live broadcast)
I was wrong with my post earlier, the first set of round-robin should be gothic.hgm wrote:First cycle of the qualifier has been completed:
TSCP Gothic surprised by beating Nebiyu twice. Fairy-Max did also transcend his usual level by beating Sjaak twice, and TSCP once. Spartacus profited from these unexpected losses of its nearest competitors by taking a firm lead.Code: Select all
Sp ts Ne Fa Sj He 1. Spartacus ## 11 10 11 11 11 90% 9.0 ( 42.0, 35.0) 2. tscpgothic 00 ## 11 01 11 11 70% 7.0 ( 46.0, 23.0) 3. NebiyuChess 01 00 ## 11 11 11 70% 7.0 ( 46.0, 23.0) 4. Fairy-Max 00 10 00 ## 11 11 50% 5.0 ( 50.0, 11.0) 5. Sjaak 00 00 00 00 ## 11 20% 2.0 ( 56.0, 0.0) 6. Heretic 00 00 00 00 00 ## 0% 0.0 ( 60.0, 0.0)
In the second cycle, which I just started, we play from the Capablanca setup.
BTW how is Spartacus different from Joker?
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Re: Battle of the Goths 2012 (live broadcast)
Spartacus was written from scratch to avoid all the design errors I had made in Joker. (e.g. Joker had only partial move sorting). They share no code. Spartacus was set up to be variant friendly; it uses 24x10 mailbox board, and a more flexible encoding scheme for special moves. So it can play all variants with the same engine, just re-initializing its piece-square tables. (Joker does not have PST, just a centralization table shared by P ,B ,N and end-game K.) Joker uses SEE to sort captures, Spartacus uses BLIND. Spartacus has an 'inverted' move generator for captures, using 0x88 methods to generate them in MVV order, so it can do staged move generation. It is designed to work from an incrementally updated attack table to speed this up, but that does not work yet, so it is currently disabled. Spartacus has a Pawn hash and a material table, more aggressive LMR, but poorer evaluation (especially King Safety).
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Re: Battle of the Goths 2012 (live broadcast)
I have not really analyzed the stats of the test games (only scanned them for time losses, false claims, illegal moves and such), but I admit Sjaak seems to be playing weaker than I expected. I can't detect any irregularities, though. I monitor with the task manager, and there are no hanging engine processes (and we have one spare core, just in case), and it does have a plausible memory foot print (101MB), and uses 50% CPU (=1 core) when thinking.Evert wrote:The results from the test matches currently linked from your page looks odd to me. In local testing I get ~60% against Fairy-Max. It may just be difference in system setup of course (64 bit Linux vs 32 bit Windows). If that's the case it's something I guess I should look into...
It could be that it was just unlucky, I see there were only 6 test games between them. As to the real games, it is 3 vs 1 now, which even with 60% in favor of Sjaak has 15% probability (as we seem to have almost no draws...), where the 'normal' reversed result would have 34% . I don't know if it can hurt Sjaak much that we are running 32-bit. I don't expect Windows vs Linux to have much of an impact.
I do notice that Sjaak thinks quite long (with 25+1) over the first few moves, which could leave it at a disadvantage when it later gets into critical positions.
The Fairy-Max compile I am using is not special in any way; it is just the one that comes with the WinBoard install (made with gcc under Cygwin from the source in my repository). It is not even a PGO compile.
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Re: Battle of the Goths 2012 (live broadcast)
Nothing jumped out in the games to me either.hgm wrote: I have not really analyzed the stats of the test games (only scanned them for time losses, false claims, illegal moves and such), but I admit Sjaak seems to be playing weaker than I expected. I can't detect any irregularities, though.
It can.I don't know if it can hurt Sjaak much that we are running 32-bit.
Sjaak uses 128 bit integers to represent boards with more than 64 squares. This isn't so bad in 64 bit with SSE instructions to handle them, but it probably hurts more than it does for normal chess when going to 32 bit...
That could also be an issue, athough I don't think I've changed the time control algorithm over what it was for Spartan, so it should have had the same problem there.I do notice that Sjaak thinks quite long (with 25+1) over the first few moves, which could leave it at a disadvantage when it later gets into critical positions.
I'll have a look anyway.
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Re: Battle of the Goths 2012 (live broadcast)
After two cycles (Gothic and Capablanca) the cross table is:
An appreciable gap is forming between numbers 3 and 4, which incidentally coincides with the the qualification threshold. Only Fairy-Max was so far able to bridge that gap, by stealing away a point from TSCP Gothic.
Now we started a cycle of Bird Chess.
Code: Select all
Spar Nebi tscp Fair Sjaa Here
1. Spartacus #### 10=1 1111 1111 1111 1111 92% 18.5 (166.0, 142.8)
2. NebiyuChess 01=0 #### 0011 1111 1111 1111 77% 15.5 (178.0, 105.8)
3. tscpgothic 0000 1100 #### 0111 1111 1111 65% 13.0 (188.0, 75.5)
4. Fairy-Max 0000 0000 1000 #### 1110 111= 37% 7.5 (210.0, 30.3)
5. Sjaak 0000 0000 0000 0001 #### 1101 20% 4.0 (224.0, 12.0)
6. Heretic 0000 0000 0000 000= 0010 #### 7% 1.5 (234.0, 7.8)
Now we started a cycle of Bird Chess.