This is what I am now using to establish endgame ratings. You may also find is useful. For analyzing these positions, I used Rybka 4 exclusively with a fixed depth of 10. All positions meet the criteria:
1) Differ in more then 6 ranks from every other positions
2) White material is less than 15
3) Black material is less than 15
4) White plus Black material is greater than 17
5) Do not evaluate to 0
6) Do not evaluate greater than 120 centipawns
7) Do not evaluate greater than 30 centipawns difference from the next best move
http://dl.dropbox.com/u/11904592/EG_MSa.epd
EPD Endgame Suite
Moderators: hgm, Rebel, chrisw
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Re: EPD Endgame Suite
How do you use these 1214 positions to get endgame ratings? I don't see any solution moves. Are they meant as starting positions for matches?
Regards, Mike
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Re: EPD Endgame Suite
Hi,
Are these from real games? What are numbers in the end of epd lines?
Jouni
Are these from real games? What are numbers in the end of epd lines?
Jouni
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Re: EPD Endgame Suite
That's the whole idea, not to have best move solutions. Otherwise it would be a test suite competition, which could be far away from real-game results.Mike S. wrote:How do you use these 1214 positions to get endgame ratings? I don't see any solution moves. Are they meant as starting positions for matches?
Kai
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Re: EPD Endgame Suite
Yes. They are taken from ICCF's _Complete Server Games 2010-04-03_. The last number is the move number of the position in the game it was taken from. The one before that has to do with the 50 move rule I believe.
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Re: EPD Endgame Suite
There are about 100 positions that are dead lost.gaard wrote:This is what I am now using to establish endgame ratings. You may also find is useful. For analyzing these positions, I used Rybka 4 exclusively with a fixed depth of 10. All positions meet the criteria:
1) Differ in more then 6 ranks from every other positions
2) White material is less than 15
3) Black material is less than 15
4) White plus Black material is greater than 17
5) Do not evaluate to 0
6) Do not evaluate greater than 120 centipawns
7) Do not evaluate greater than 30 centipawns difference from the next best move
http://dl.dropbox.com/u/11904592/EG_MSa.epd
There are a little over 100 positions that are dead drawn.
There are 278 positions with a score of more than one pawn up or down.
There are 131 positions that have a score of more than two pawns up or down.
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Re: EPD Endgame Suite
How long did your analysis run? Would you mind posting the positions that are dead lost, dead drawn, and have a score greater than 120 centipawns so they can be removed?Dann Corbit wrote:There are about 100 positions that are dead lost.gaard wrote:This is what I am now using to establish endgame ratings. You may also find is useful. For analyzing these positions, I used Rybka 4 exclusively with a fixed depth of 10. All positions meet the criteria:
1) Differ in more then 6 ranks from every other positions
2) White material is less than 15
3) Black material is less than 15
4) White plus Black material is greater than 17
5) Do not evaluate to 0
6) Do not evaluate greater than 120 centipawns
7) Do not evaluate greater than 30 centipawns difference from the next best move
http://dl.dropbox.com/u/11904592/EG_MSa.epd
There are a little over 100 positions that are dead drawn.
There are 278 positions with a score of more than one pawn up or down.
There are 131 positions that have a score of more than two pawns up or down.
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- Location: Redmond, WA USA
Re: EPD Endgame Suite
I think my total analysis will probably done tomorrow. I will post a summary then.gaard wrote:How long did your analysis run? Would you mind posting the positions that are dead lost, dead drawn, and have a score greater than 120 centipawns so they can be removed?Dann Corbit wrote:There are about 100 positions that are dead lost.gaard wrote:This is what I am now using to establish endgame ratings. You may also find is useful. For analyzing these positions, I used Rybka 4 exclusively with a fixed depth of 10. All positions meet the criteria:
1) Differ in more then 6 ranks from every other positions
2) White material is less than 15
3) Black material is less than 15
4) White plus Black material is greater than 17
5) Do not evaluate to 0
6) Do not evaluate greater than 120 centipawns
7) Do not evaluate greater than 30 centipawns difference from the next best move
http://dl.dropbox.com/u/11904592/EG_MSa.epd
There are a little over 100 positions that are dead drawn.
There are 278 positions with a score of more than one pawn up or down.
There are 131 positions that have a score of more than two pawns up or down.
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- Joined: Mon Jun 07, 2010 3:13 am
- Location: Holland, MI
- Full name: Martin W
Re: EPD Endgame Suite
Thanks, Dann. I trust your judgment. If you want to post the corrected suite too with those positions removed, that'd be great.
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- Full name: Kai Laskos
Re: EPD Endgame Suite
These are not fatal flaws of an endgame positions suite, the real games towards the endgame are indeed quite often fairly decided. I present here the first results, which look interesting, after 1,800 games on 1 core at 5s + 0.5s.Dann Corbit wrote:There are about 100 positions that are dead lost.gaard wrote:This is what I am now using to establish endgame ratings. You may also find is useful. For analyzing these positions, I used Rybka 4 exclusively with a fixed depth of 10. All positions meet the criteria:
1) Differ in more then 6 ranks from every other positions
2) White material is less than 15
3) Black material is less than 15
4) White plus Black material is greater than 17
5) Do not evaluate to 0
6) Do not evaluate greater than 120 centipawns
7) Do not evaluate greater than 30 centipawns difference from the next best move
http://dl.dropbox.com/u/11904592/EG_MSa.epd
There are a little over 100 positions that are dead drawn.
There are 278 positions with a score of more than one pawn up or down.
There are 131 positions that have a score of more than two pawns up or down.
Code: Select all
Program Score % Av.Op. Elo + - Draws
1 Houdini 1.5a x64 : 434.0/600 72.3 3171 3338 28 27 18.0 %
2 Ivanhoe B49jA_1-cpu : 313.0/600 52.2 3196 3211 24 24 25.0 %
3 Stockfish 2.0.1 JA 64bit : 310.0/600 51.7 3197 3209 23 23 29.0 %
4 Rybka 4_x64 : 291.5/600 48.6 3201 3191 23 23 31.2 %
5 Critter 0.90 64-bit : 236.5/600 39.4 3211 3137 25 25 23.8 %
6 Komodo64 1.3 JA : 215.0/600 35.8 3216 3115 25 25 23.0 %
Code: Select all
Individual statistics:
1 Houdini 1.5a x64 : 3338 600 (+380,=108,-112), 72.3 %
Rybka 4_x64 : 120 (+ 60,= 35,- 25), 64.6 %
Ivanhoe B49jA_1-cpu : 120 (+ 79,= 20,- 21), 74.2 %
Komodo64 1.3 JA : 120 (+ 85,= 11,- 24), 75.4 %
Stockfish 2.0.1 JA 64bit : 120 (+ 63,= 32,- 25), 65.8 %
Critter 0.90 64-bit : 120 (+ 93,= 10,- 17), 81.7 %
2 Ivanhoe B49jA_1-cpu : 3211 600 (+238,=150,-212), 52.2 %
Houdini 1.5a x64 : 120 (+ 21,= 20,- 79), 25.8 %
Rybka 4_x64 : 120 (+ 52,= 39,- 29), 59.6 %
Komodo64 1.3 JA : 120 (+ 71,= 27,- 22), 70.4 %
Stockfish 2.0.1 JA 64bit : 120 (+ 35,= 36,- 49), 44.2 %
Critter 0.90 64-bit : 120 (+ 59,= 28,- 33), 60.8 %
3 Stockfish 2.0.1 JA 64bit : 3209 600 (+223,=174,-203), 51.7 %
Houdini 1.5a x64 : 120 (+ 25,= 32,- 63), 34.2 %
Rybka 4_x64 : 120 (+ 49,= 38,- 33), 56.7 %
Ivanhoe B49jA_1-cpu : 120 (+ 49,= 36,- 35), 55.8 %
Komodo64 1.3 JA : 120 (+ 47,= 38,- 35), 55.0 %
Critter 0.90 64-bit : 120 (+ 53,= 30,- 37), 56.7 %
4 Rybka 4_x64 : 3191 600 (+198,=187,-215), 48.6 %
Houdini 1.5a x64 : 120 (+ 25,= 35,- 60), 35.4 %
Ivanhoe B49jA_1-cpu : 120 (+ 29,= 39,- 52), 40.4 %
Komodo64 1.3 JA : 120 (+ 67,= 31,- 22), 68.8 %
Stockfish 2.0.1 JA 64bit : 120 (+ 33,= 38,- 49), 43.3 %
Critter 0.90 64-bit : 120 (+ 44,= 44,- 32), 55.0 %
5 Critter 0.90 64-bit : 3137 600 (+165,=143,-292), 39.4 %
Houdini 1.5a x64 : 120 (+ 17,= 10,- 93), 18.3 %
Rybka 4_x64 : 120 (+ 32,= 44,- 44), 45.0 %
Ivanhoe B49jA_1-cpu : 120 (+ 33,= 28,- 59), 39.2 %
Komodo64 1.3 JA : 120 (+ 46,= 31,- 43), 51.2 %
Stockfish 2.0.1 JA 64bit : 120 (+ 37,= 30,- 53), 43.3 %
6 Komodo64 1.3 JA : 3115 600 (+146,=138,-316), 35.8 %
Houdini 1.5a x64 : 120 (+ 24,= 11,- 85), 24.6 %
Rybka 4_x64 : 120 (+ 22,= 31,- 67), 31.2 %
Ivanhoe B49jA_1-cpu : 120 (+ 22,= 27,- 71), 29.6 %
Stockfish 2.0.1 JA 64bit : 120 (+ 35,= 38,- 47), 45.0 %
Critter 0.90 64-bit : 120 (+ 43,= 31,- 46), 48.8 %
Code: Select all
Games : 1800 (finished)
White Wins : 605 (33.6 %)
Black Wins : 745 (41.4 %)
Draws : 450 (25.0 %)
Unfinished : 0
White Perf. : 46.1 %
Black Perf. : 53.9 %
Interesting results anyway, and I will continue the test.
Kai