I ABSOLUTELY agree with BrendanJNorman: „ Polish style/features (levels, multiPV etc) - Elo be damned!“
Nobody is interested in higher Elo! We want to see a fascinating playing style!






Thank you for your engine!!

Moderator: Ras
Dev Patricia already has some skill level options, set to CCRL elo - 50 at 60+0.6 and weaker at longer time controls that a human would likely play at. I feel it is a decent approximation of human elo at blitz-rapid TCs, and it’s all based on node and depth limits in order to not be artificially weak.PeterO wrote: ↑Mon Apr 08, 2024 5:06 pm Hello,
I ABSOLUTELY agree with BrendanJNorman: „ Polish style/features (levels, multiPV etc) - Elo be damned!“
Nobody is interested in higher Elo! We want to see a fascinating playing style!![]()
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The MOST important feature for ME: I want to set a Elo Number in Patricia - for example Elo 1800. And play against it. AND - Elo 1800 should REALLY mean - HUMAN Elo 1800. I think a combination of your idea:
1. Random-„Human Blunders“ + 2. (Pohls Suggestion) node-limit would be a DREAM!
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Thank you for your engine!!Peter
Code: Select all
bad avg.win
Rank EAS-Score sacs shorts draws moves Engine/player
-------------------------------------------------------------------
1 337941 44.01% 36.20% 04.84% 67 Patricia 2.0
2 134485 07.65% 54.34% 33.84% 61 Critter 1.6a
3 130651 02.60% 53.76% 35.44% 60 Rybka 4.1
4 125405 03.57% 55.61% 34.45% 61 Andscacs 0.88
5 121305 04.28% 56.03% 32.84% 61 Laser 1.5
6 106943 03.61% 45.10% 30.06% 64 Komodo 5
7 100754 04.08% 47.96% 36.93% 64 Houdini 1.5a
8 100360 05.03% 46.15% 35.51% 63 Texel 1.7
9 97459 03.85% 46.15% 36.69% 63 Nirvanachess 2.4
10 84082 04.61% 43.80% 37.65% 65 Hannibal 1.7
11 67447 01.51% 29.06% 24.70% 72 Princhess 0.16
-------------------------------------------------------------------
*** Average length of all won games: 65 moves
The "weak OpenTal" engine was created so that an even weaker (2200ish) human player (me) could have an aggressive GM-level sparring partner.
Correct. I just wanted to point out, that OpenTal exists and plays also very aggressive. But OpenTal has no neural-net (it is a Rodent-modification) and so, it often plays sacrifices, which definitly not fit the position on the board... Patricia is not only much stronger (+700 Elo?!), but has a neural-net and plays its aggressive style with much more understanding of the board-position.BrendanJNorman wrote: ↑Tue Apr 09, 2024 9:34 amThe "weak OpenTal" engine was created so that an even weaker (2200ish) human player (me) could have an aggressive GM-level sparring partner.
Not to battle with superhuman chess engines.![]()
Everything you say is absolutely correct.pohl4711 wrote: ↑Tue Apr 09, 2024 10:05 amCorrect. I just wanted to point out, that OpenTal exists and plays also very aggressive. But OpenTal has no neural-net (it is a Rodent-modification) and so, it often plays sacrifices, which definitly not fit the position on the board... Patricia is not only much stronger (+700 Elo?!), but has a neural-net and plays its aggressive style with much more understanding of the board-position.BrendanJNorman wrote: ↑Tue Apr 09, 2024 9:34 amThe "weak OpenTal" engine was created so that an even weaker (2200ish) human player (me) could have an aggressive GM-level sparring partner.
Not to battle with superhuman chess engines.![]()
So, Patricia 2.0 is, right now, the most aggressive playing engine, which is on superhuman Elo-level and has a neural-net for much better positional understanding.
Thank you very much! I really appreciate the test you did, as well as the page about Patricia on your website, and I hope I will find good use for all the games that were played.pohl4711 wrote: ↑Tue Apr 09, 2024 7:45 am I did a testrun of Patricia 2.0 vs. 10 engines (strength around Rybka 4.1), which fits the strength of Patricia 2.0 very well, for an EAS-calculation (short wins move-limit fixed to 60 moves).
10000 games, 3min+1sec, singlethread. Balanced openings, engines start thinking from move 9.
https://www.sp-cc.de/patricia_eas_engine.htm
Download the played games and 874 spectacular wins of Patricia 2.0 (with at least a 2 pawn-units sac) (filtered by my Interesting Wins Search Tool) directly:
https://www.sp-cc.de/files/patricia_2.0_test.7z
An EAS-Score of 337941 is very impressive. No other engine (except the weak OpenTal engine) has ever achieved more than 300000 EAS-points in my testings !!!Code: Select all
bad avg.win Rank EAS-Score sacs shorts draws moves Engine/player ------------------------------------------------------------------- 1 337941 44.01% 36.20% 04.84% 67 Patricia 2.0 2 134485 07.65% 54.34% 33.84% 61 Critter 1.6a 3 130651 02.60% 53.76% 35.44% 60 Rybka 4.1 4 125405 03.57% 55.61% 34.45% 61 Andscacs 0.88 5 121305 04.28% 56.03% 32.84% 61 Laser 1.5 6 106943 03.61% 45.10% 30.06% 64 Komodo 5 7 100754 04.08% 47.96% 36.93% 64 Houdini 1.5a 8 100360 05.03% 46.15% 35.51% 63 Texel 1.7 9 97459 03.85% 46.15% 36.69% 63 Nirvanachess 2.4 10 84082 04.61% 43.80% 37.65% 65 Hannibal 1.7 11 67447 01.51% 29.06% 24.70% 72 Princhess 0.16 ------------------------------------------------------------------- *** Average length of all won games: 65 moves
Werewolf wrote: ↑Thu Apr 11, 2024 9:56 pm Is this a search bug or just part of the way it plays? Patricia was White. Black was a 2000 Elo bot.
Game in 15.
Black wins.
[pgn]1. e4 c5 2. b4 cxb4 3. a3 Qa5 4. Nf3 e5 5. d4 Nf6 6. Nxe5 Nxe4 7. Bd3 bxa3+ 8. c3 Nxc3 9. Qd2 Bb4 10. O-O Nxb1 11. Qg5 Rf8 12. Qxg7 a2 13. Bg5 h6 14. Bf6 d5 15. Re1?? Bxe1 16. Rxa2?? Qxa2 17. Nxf7 Rf7
0-1[/pgn]
0-1
White was completely winning before 15.Re1.Werewolf wrote: ↑Thu Apr 11, 2024 9:56 pm Is this a search bug or just part of the way it plays? Patricia was White. Black was a 2000 Elo bot.
Game in 15.
Black wins.
[pgn]1. e4 c5 2. b4 cxb4 3. a3 Qa5 4. Nf3 e5 5. d4 Nf6 6. Nxe5 Nxe4 7. Bd3 bxa3+ 8. c3 Nxc3 9. Qd2 Bb4 10. O-O Nxb1 11. Qg5 Rf8 12. Qxg7 a2 13. Bg5 h6 14. Bf6 d5 15. Re1?? Bxe1 16. Rxa2?? Qxa2 17. Nxf7 Rf7
0-1[/pgn]
0-1