Official Release of OliThink 5.7.5 including a Java-GUI
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Re: Official Release of OliThink 5.7.5 including a Java-GUI
Tiny Terror Trounces Titans!
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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- Full name: Maksim Korzh
Re: Official Release of OliThink 5.7.5 including a Java-GUI
OliverBr wrote: ↑Thu Sep 10, 2020 1:45 am Hello together,
OliThink 5.7.5 has been released and there are some news about it.
- The strength is gaining while code size/complexity is shrinking. 1603 lines of code (45kbyte) with an ELO of almost 2700.
- Executables for Mac64, Linux64 and Win64
- There is an Java Version.
- There is a simple GUI for the Java Version in order to play OliThink "out-of-the-box":
- In order to use this GUI: http://brausch.org/home/chess/OliThinkGUI.jar
(Download, Keep (!) and start with "java -jar OliThinkGUI.jar". Depending on your security settings, you may just double-click the jar-file.)
. It has no pondering and about 1sec/move time, so it won't take much of your computer's resources.
- This Java GUI has less than 200 lines of code and hasn't been changed sind 2009: https://github.com/olithink/olithink5Ja ... Frame.java
PS: A short gauntlet tournament with the C-Version:Code: Select all
# PLAYER : RATING ERROR POINTS PLAYED (%) W D L D(%) CFS(%) 1 Scorpio_2.8.8 MCTS+NN : 25 28 268.0 500 53.6 225 86 189 17.2 65 2 Fruit 2.1 : 18 28 262.5 500 52.5 213 99 188 19.8 89 3 OliThink 5.7.5 : 0 ---- 1084.5 2000 54.2 893 383 724 19.1 100 4 K2 v.087 : -44 28 218.5 500 43.7 158 121 221 24.2 100 5 Arasan 11.7 : -122 28 166.5 500 33.3 128 77 295 15.4 --- White advantage = -0.18 +/- 7.26 Draw rate (equal opponents) = 19.57 % +/- 0.90
Fantastic work, Oliver!
Just wondering WHY did you consider to create your own GUI?
I can hardly imagine what would make me even think about making my own GUI...
Didactic chess engines:
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
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- Full name: Dr. Oliver Brausch
Re: Official Release of OliThink 5.7.5 including a Java-GUI
Thank you very much.maksimKorzh wrote: ↑Sat Sep 19, 2020 1:04 pm Fantastic work, Oliver!
Just wondering WHY did you consider to create your own GUI?
I can hardly imagine what would make me even think about making my own GUI...
The GUI is a very simple. tiny Java program, 200 lines of code. It was done in a matter of few hours. Of course there are not many options in this GUI.
Originally you could play OliThink directly in my homepage, but Java Applets are considered a security risk nowadays.
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- Full name: Maksim Korzh
Re: Official Release of OliThink 5.7.5 including a Java-GUI
I've done this ones using CSS Bootstrap libraryOliverBr wrote: ↑Sat Sep 19, 2020 1:52 pmThank you very much.maksimKorzh wrote: ↑Sat Sep 19, 2020 1:04 pm Fantastic work, Oliver!
Just wondering WHY did you consider to create your own GUI?
I can hardly imagine what would make me even think about making my own GUI...
The GUI is a very simple. tiny Java program, 200 lines of code. It was done in a matter of few hours. Of course there are not many options in this GUI.
Originally you could play OliThink directly in my homepage, but Java Applets are considered a security risk nowadays.
https://maksimkorzh.github.io/bmcp_js/
It's incredibly poor and buggy, so don't judge it too much
I had to port the poor and buggy C version of this "engine" (a very tiny program, inspired by MicroMax by HGM) to achieve that.
But the other option might be creating a web based UCI GUI so the engine could run remotely on a server and controlled from the browser.
Well, obviously this is pretty expensive assuming dynamic billing like in case of AWS EC2.
But probably someone has obviously done something like that before right?
Didactic chess engines:
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
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- Joined: Tue Dec 18, 2007 9:38 pm
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- Full name: Dr. Oliver Brausch
Re: Official Release of OliThink 5.7.5 including a Java-GUI
This is really great! I love it. I would love to have my engine playable online (again). But Javascript (or even typescript) is quite difficult to translate from C (Here is a fine example that Java and JavaScript are very different program languages).maksimKorzh wrote: ↑Sat Sep 19, 2020 2:05 pm I've done this ones using CSS Bootstrap library
https://maksimkorzh.github.io/bmcp_js/
It's incredibly poor and buggy, so don't judge it too much
I would like to present a game. A few weeks ago, I have got a 32 core server and I started developing OliThink with the server. As all my tests go with cutechess-cli I didn't watch any OliThink game for a long time.
Now I let 5.7.9 play against Glaurung 2.1 - 4 CPU on my notebook and I am really stunned. OliThink playing very precise now and a really intriguing style of play. For those who are interested:, Glaurung trades two knights for a rook and then we see that two bishops are actually better than one rook.
[pgn]
[Event "Computer Chess Game"]
[Site "Olivers-MacBook-2.local"]
[Date "2020.09.19"]
[Round "-"]
[White "OliThink 5.7.9"]
[Black "Glaurung 2.1"]
[Result "1-0"]
[TimeControl "40/60"]
[Annotator "8. -0.12 14... -0.01"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7
8. Nf3 {-0.12/15 1.1} d6 9. e3 {+0.02/17 1.2} Nbd7 10. Bd3 {+0.01/17 1.1}
c5 11. O-O {+0.21/14 1.3} Bxf3 12. gxf3 {+0.32/15 1.5} h6 13. Bh4
{+0.31/15 1.1} Qc7 14. b3 {+0.36/15 1.2} Rac8 {-0.01/13 4} 15. Bg3
{+0.39/14 2.2} Qc6 {+0.09/14 2.2} 16. Kg2 {+0.42/15 1.3} Rfd8 {+0.29/14 4}
17. Rfe1 {+0.50/13 1.2} cxd4 {+0.31/14 1.9} 18. exd4 {+0.53/18 2.1} Nh5
{+0.23/14 0.9} 19. Qd2 {+0.55/15 1.3} Ndf6 {+0.29/14 2.5} 20. b4 Re8
{+0.23/12 2.6} 21. a4 {+0.79/16 1.5} Red8 {+0.01/12 1.6} 22. h4
{+0.75/16 1.5} Qd7 {-0.07/12 2.3} 23. Red1 {+0.83/16 0.1} Qb7
{+0.25/13 2.1} 24. a5 {+0.87/17 2.2} Qd7 {-0.05/13 1.4} 25. Ra3 {+0.80/17}
b5 {+0.00/14 2.1} 26. cxb5 {+0.86/16 2.1} Nd5 {-0.03/14 1.9} 27. b6
{+0.82/15 0.2} axb6 {-0.07/14 2.0} 28. a6 {+0.77/18 0.2} Rc7 {-0.11/14 2.6}
29. b5 {+0.65/16 1.5} Rdc8 {-0.03/14 2.6} 30. Kg1 {+0.64/16 5} Nhf6
{+0.00/15 1.5} 31. Rda1 {+0.80/17 4} Qe7 {+0.00/16 2.4} 32. Re1
{+0.77/15 1.8} Qd7 {+0.00/17 0.3} 33. Rb1 {+0.77/16 2.1} Qd8 {-0.11/15 6}
34. Raa1 {+0.77/18 1.9} Nc3 {-0.07/16} 35. Rb3 {+0.78/19 2.6} Ncd5
{-0.21/14 1.4} 36. Rb2 {+0.77/18 4} Nc3 {-0.27/16} 37. Ra3 {+0.76/17 1.9}
Nfd5 {-0.29/15 1.3} 38. Kg2 {+0.84/17 0.7} Kf8 {-0.47/14 3} 39. a7
{+0.95/17 1.6} Ra8 {-0.60/15 2.1} 40. Rbb3 {+0.95/20 0.4} Rcxa7
{-0.58/15 1.7} 41. Rxa7 {+1.03/20 1.6} Rxa7 {-0.66/17 1.5} 42. Rxc3
{+1.01/20 0.3} Nxc3 {-0.72/17 4} 43. Qxc3 d5 {-0.62/16 1.6} 44. Qc6
{+1.02/21 2.1} Kg8 {-0.78/15 1.9} 45. Bf4 {+1.02/19 0.3} Rd7 {-0.86/16 2.4}
46. h5 {+1.08/19 1.3} Ra7 {-0.80/16 2.2} 47. Kf1 {+1.12/21 2.0} Ra1+
{-0.92/15 1.7} 48. Ke2 {+1.17/23} Ra2+ {-0.98/16 1.9} 49. Ke3
{+1.14/20 1.3} Ra7 {-1.15/16 0.6} 50. Be5 {+1.07/20 1.4} Kh8 {-1.43/16 2.2}
51. Bd6 {+1.09/19 2.9} Rd7 {-1.37/16 1.7} 52. Bb4 {+1.13/23 1.4} Kg8
{-1.45/17 1.7} 53. f4 {+1.07/20 1.1} Ra7 {-1.45/17 1.0} 54. Bd6
{+1.17/19 1.4} Rd7 {-1.60/16 1.7} 55. Be5 {+1.17/20 0.5} Ra7 {-1.68/16 1.0}
56. Kf3 {+1.33/17 1.6} Ra3 {-1.52/16 2.2} 57. Bc7 {+1.48/23 0.8} Rxd3+
{-1.13/16 0.6} 58. Ke2 {+1.10/22 2.8} Qh4 {-1.00/17} 59. Kxd3
{+0.84/19 1.4} Qxh5 {-1.00/16 0.1} 60. Kc3 {+0.88/19 1.4} Qd1
{+0.00/16 1.7} 61. Qa8+ {+1.21/20 1.3} Kh7 {+0.00/18} 62. Qa2
{+1.17/20 1.7} Qe1+ {+0.00/16 1.1} 63. Qd2 {+1.46/23 3} Qa1+ {+0.00/16} 64.
Qb2 {+1.35/21 1.7} Qa5+ {-0.74/15 1.7} 65. Kd3 {+1.74/17 1.1} g6
{-0.84/16 0.7} 66. Ke2 {+1.74/19 1.3} Kg7 {-0.92/16 0.3} 67. f3
{+1.71/17 1.4} Kf8 {-0.94/15 1.8} 68. Bd6+ {+1.62/19 3} Kg7 {-0.98/18} 69.
Ba3 {+1.72/20 1.6} Qa7 {-0.84/15 1.5} 70. Kf2 {+1.88/21 0.4} Qb8
{-1.03/16 1.8} 71. Qd2 {+2.04/19 0.1} Qc7 {-1.05/16 1.9} 72. Kg3
{+2.13/21 1.5} g5 {-1.37/16 1.0} 73. Qc1 {+2.24/20 2.6} Qb8 {-1.58/16} 74.
Bb4 {+2.35/20 4} Kg6 {-1.66/16 1.0} 75. Bd2 {+2.39/19 0.7} Qd6
{-1.68/16 1.8} 76. Kg4 {+2.45/18 0.3} gxf4 {-2.09/15 3} 77. Bxf4
{+2.81/20 1.8} Qb4 {-2.94/16 1.8} 78. Qg1 {+2.87/21 0.4} Qe7 {-3.31/17 3}
{Black resigns} 1-0
[/pgn]
Funny fact: When analyzing this game with Stockfish 11 in most cases Stockfish and Glaurung share their opinion about the best move.
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Re: Official Release of OliThink 5.7.5 including a Java-GUI
Sorry, but I need to disagree that porting engine from C to JS is difficultOliverBr wrote: ↑Sat Sep 19, 2020 10:58 pmThis is really great! I love it. I would love to have my engine playable online (again). But Javascript (or even typescript) is quite difficult to translate from C (Here is a fine example that Java and JavaScript are very different program languages).maksimKorzh wrote: ↑Sat Sep 19, 2020 2:05 pm I've done this ones using CSS Bootstrap library
https://maksimkorzh.github.io/bmcp_js/
It's incredibly poor and buggy, so don't judge it too much
I would like to present a game. A few weeks ago, I have got a 32 core server and I started developing OliThink with the server. As all my tests go with cutechess-cli I didn't watch any OliThink game for a long time.
Now I let 5.7.9 play against Glaurung 2.1 - 4 CPU on my notebook and I am really stunned. OliThink playing very precise now and a really intriguing style of play. For those who are interested:, Glaurung trades two knights for a rook and then we see that two bishops are actually better than one rook.
[pgn]
[Event "Computer Chess Game"]
[Site "Olivers-MacBook-2.local"]
[Date "2020.09.19"]
[Round "-"]
[White "OliThink 5.7.9"]
[Black "Glaurung 2.1"]
[Result "1-0"]
[TimeControl "40/60"]
[Annotator "8. -0.12 14... -0.01"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7
8. Nf3 {-0.12/15 1.1} d6 9. e3 {+0.02/17 1.2} Nbd7 10. Bd3 {+0.01/17 1.1}
c5 11. O-O {+0.21/14 1.3} Bxf3 12. gxf3 {+0.32/15 1.5} h6 13. Bh4
{+0.31/15 1.1} Qc7 14. b3 {+0.36/15 1.2} Rac8 {-0.01/13 4} 15. Bg3
{+0.39/14 2.2} Qc6 {+0.09/14 2.2} 16. Kg2 {+0.42/15 1.3} Rfd8 {+0.29/14 4}
17. Rfe1 {+0.50/13 1.2} cxd4 {+0.31/14 1.9} 18. exd4 {+0.53/18 2.1} Nh5
{+0.23/14 0.9} 19. Qd2 {+0.55/15 1.3} Ndf6 {+0.29/14 2.5} 20. b4 Re8
{+0.23/12 2.6} 21. a4 {+0.79/16 1.5} Red8 {+0.01/12 1.6} 22. h4
{+0.75/16 1.5} Qd7 {-0.07/12 2.3} 23. Red1 {+0.83/16 0.1} Qb7
{+0.25/13 2.1} 24. a5 {+0.87/17 2.2} Qd7 {-0.05/13 1.4} 25. Ra3 {+0.80/17}
b5 {+0.00/14 2.1} 26. cxb5 {+0.86/16 2.1} Nd5 {-0.03/14 1.9} 27. b6
{+0.82/15 0.2} axb6 {-0.07/14 2.0} 28. a6 {+0.77/18 0.2} Rc7 {-0.11/14 2.6}
29. b5 {+0.65/16 1.5} Rdc8 {-0.03/14 2.6} 30. Kg1 {+0.64/16 5} Nhf6
{+0.00/15 1.5} 31. Rda1 {+0.80/17 4} Qe7 {+0.00/16 2.4} 32. Re1
{+0.77/15 1.8} Qd7 {+0.00/17 0.3} 33. Rb1 {+0.77/16 2.1} Qd8 {-0.11/15 6}
34. Raa1 {+0.77/18 1.9} Nc3 {-0.07/16} 35. Rb3 {+0.78/19 2.6} Ncd5
{-0.21/14 1.4} 36. Rb2 {+0.77/18 4} Nc3 {-0.27/16} 37. Ra3 {+0.76/17 1.9}
Nfd5 {-0.29/15 1.3} 38. Kg2 {+0.84/17 0.7} Kf8 {-0.47/14 3} 39. a7
{+0.95/17 1.6} Ra8 {-0.60/15 2.1} 40. Rbb3 {+0.95/20 0.4} Rcxa7
{-0.58/15 1.7} 41. Rxa7 {+1.03/20 1.6} Rxa7 {-0.66/17 1.5} 42. Rxc3
{+1.01/20 0.3} Nxc3 {-0.72/17 4} 43. Qxc3 d5 {-0.62/16 1.6} 44. Qc6
{+1.02/21 2.1} Kg8 {-0.78/15 1.9} 45. Bf4 {+1.02/19 0.3} Rd7 {-0.86/16 2.4}
46. h5 {+1.08/19 1.3} Ra7 {-0.80/16 2.2} 47. Kf1 {+1.12/21 2.0} Ra1+
{-0.92/15 1.7} 48. Ke2 {+1.17/23} Ra2+ {-0.98/16 1.9} 49. Ke3
{+1.14/20 1.3} Ra7 {-1.15/16 0.6} 50. Be5 {+1.07/20 1.4} Kh8 {-1.43/16 2.2}
51. Bd6 {+1.09/19 2.9} Rd7 {-1.37/16 1.7} 52. Bb4 {+1.13/23 1.4} Kg8
{-1.45/17 1.7} 53. f4 {+1.07/20 1.1} Ra7 {-1.45/17 1.0} 54. Bd6
{+1.17/19 1.4} Rd7 {-1.60/16 1.7} 55. Be5 {+1.17/20 0.5} Ra7 {-1.68/16 1.0}
56. Kf3 {+1.33/17 1.6} Ra3 {-1.52/16 2.2} 57. Bc7 {+1.48/23 0.8} Rxd3+
{-1.13/16 0.6} 58. Ke2 {+1.10/22 2.8} Qh4 {-1.00/17} 59. Kxd3
{+0.84/19 1.4} Qxh5 {-1.00/16 0.1} 60. Kc3 {+0.88/19 1.4} Qd1
{+0.00/16 1.7} 61. Qa8+ {+1.21/20 1.3} Kh7 {+0.00/18} 62. Qa2
{+1.17/20 1.7} Qe1+ {+0.00/16 1.1} 63. Qd2 {+1.46/23 3} Qa1+ {+0.00/16} 64.
Qb2 {+1.35/21 1.7} Qa5+ {-0.74/15 1.7} 65. Kd3 {+1.74/17 1.1} g6
{-0.84/16 0.7} 66. Ke2 {+1.74/19 1.3} Kg7 {-0.92/16 0.3} 67. f3
{+1.71/17 1.4} Kf8 {-0.94/15 1.8} 68. Bd6+ {+1.62/19 3} Kg7 {-0.98/18} 69.
Ba3 {+1.72/20 1.6} Qa7 {-0.84/15 1.5} 70. Kf2 {+1.88/21 0.4} Qb8
{-1.03/16 1.8} 71. Qd2 {+2.04/19 0.1} Qc7 {-1.05/16 1.9} 72. Kg3
{+2.13/21 1.5} g5 {-1.37/16 1.0} 73. Qc1 {+2.24/20 2.6} Qb8 {-1.58/16} 74.
Bb4 {+2.35/20 4} Kg6 {-1.66/16 1.0} 75. Bd2 {+2.39/19 0.7} Qd6
{-1.68/16 1.8} 76. Kg4 {+2.45/18 0.3} gxf4 {-2.09/15 3} 77. Bxf4
{+2.81/20 1.8} Qb4 {-2.94/16 1.8} 78. Qg1 {+2.87/21 0.4} Qe7 {-3.31/17 3}
{Black resigns} 1-0
[/pgn]
Funny fact: When analyzing this game with Stockfish 11 in most cases Stockfish and Glaurung share their opinion about the best move.
Here I have C and JS versions of the "engine" you've seen:
C: https://github.com/maksimKorzh/bmcp/blo ... ommented.c
JS: https://github.com/maksimKorzh/bmcp_js/ ... ne/bmcp.js
Also VICE has JS port and even stockfich.
I would LOVE to play JS version of OliThink online
re: game
- very impressive, but exchange on f3 seems a bit strange from king's safety perspective. But anyway, I'm deeply impressed.
Didactic chess engines:
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
-
- Posts: 725
- Joined: Tue Dec 18, 2007 9:38 pm
- Location: Munich, Germany
- Full name: Dr. Oliver Brausch
Re: Official Release of OliThink 5.7.5 including a Java-GUI
You might be correct, I will try to have a look into it.maksimKorzh wrote: ↑Sat Sep 19, 2020 11:48 pm Sorry, but I need to disagree that porting engine from C to JS is difficult
Here comes the OliThink "speciality".re: game
- very impressive, but exchange on f3 seems a bit strange from king's safety perspective. But anyway, I'm deeply impressed.
OliThink doesn't know anything about "king safety", "king shelter" or even double pawns. The complete evaluation is based on just mobility (there are some rare exception like passed pawn).*
If you have a look at the code, there is not a single square table, everything is generic. OliThink has no chess knowledge except rules and mobility.
The mobility evaluation ist quite simple, too. It's not even considering if a square are controlled by the enemy. This may an idea for improvement.
PS: Neither Leela nor Stockfish would have exchanged on f3. Leela plays rather 11...Rc8 and Stockfish 11...h6 (later 11...Rc8).
For Leela the first mistakes were 28...Rb7 instead of 28...f5 and the next move 29...Rdc8 instead of 29...f5 again.
Leela urgently wants to play ...f5! on several other occasions, too.
-
- Posts: 771
- Joined: Sat Sep 08, 2018 5:37 pm
- Location: Ukraine
- Full name: Maksim Korzh
Re: Official Release of OliThink 5.7.5 including a Java-GUI
I love the idea of ONLY mobility evaluation. I will definitely try it out!OliverBr wrote: ↑Sun Sep 20, 2020 12:05 amYou might be correct, I will try to have a look into it.maksimKorzh wrote: ↑Sat Sep 19, 2020 11:48 pm Sorry, but I need to disagree that porting engine from C to JS is difficult
Here comes the OliThink "speciality".re: game
- very impressive, but exchange on f3 seems a bit strange from king's safety perspective. But anyway, I'm deeply impressed.
OliThink doesn't know anything about "king safety", "king shelter" or even double pawns. The complete evaluation is based on just mobility (there are some rare exception like passed pawn).*
If you have a look at the code, there is not a single square table, everything is generic. OliThink has no chess knowledge except rules and mobility.
The mobility evaluation ist quite simple, too. It's not even considering if a square are controlled by the enemy. This may an idea for improvement.
PS: Neither Leela nor Stockfish would have exchanged on f3. Leela plays rather 11...Rc8 and Stockfish 11...h6 (later 11...Rc8).
For Leela the first mistakes were 28...Rb7 instead of 28...f5 and the next move 29...Rdc8 instead of 29...f5 again.
Leela urgently wants to play ...f5! on several other occasions, too.
Didactic chess engines:
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
https://www.chessprogramming.org/Maksim_Korzh
Chess programming YouTube channel:
https://www.youtube.com/channel/UCB9-pr ... KKqDgXhsMQ
-
- Posts: 725
- Joined: Tue Dec 18, 2007 9:38 pm
- Location: Munich, Germany
- Full name: Dr. Oliver Brausch
Re: Official Release of OliThink 5.7.5 including a Java-GUI
It would be very interesting to know how strong an engine can be with only mobility eval.maksimKorzh wrote: ↑Sun Sep 20, 2020 12:24 am I love the idea of ONLY mobility evaluation. I will definitely try it out!
PS: I now see that the origin of OliThink 5 was in 2004. Tord (Hands down, one of the best programers ever) was there, too. This is really a long time, 16 years, imagine...
http://www.open-aurec.com/wbforum/viewt ... ?f=4&t=432
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- Posts: 725
- Joined: Tue Dec 18, 2007 9:38 pm
- Location: Munich, Germany
- Full name: Dr. Oliver Brausch
Re: Official Release of OliThink 5.7.5 including a Java-GUI
5.8.0 has been released. Here a small tournament with famous names, but ultra quick time control:
Ethereal was a positive surprise, while Minic a negative one, I would have guessed Ehereal about 520 and Minic about 280.
===========================================================================
Next endeavours for OiThink:
1) Move sorting. It's too simple atm. Noisy moves are ordered by value of the captured piece. Quiet moves are ordered just by one killer and history heuristics.
2) Pruning. Many of the common pruning tricks do not work with OliThink.
3) Mobility evaluation. It's not subtracting point for squares that are (attacked/controlled) by the opponent.
4) More hash: Eval- and Pawnhashs are not efficient, because the Hash probing needs almost as much time as the simple eval-function. Perhaps a KingpawnHash?.
5) Hash-aging: There is no aging yet. Each slot will be overwritten by the next store.
Code: Select all
# PLAYER : RATING ERROR POINTS PLAYED (%) W D L D(%) CFS(%)
1 Stockfish 11 64 : 752 16 9004.0 10007 90.0 8410 1188 409 11.9 100
2 Ethereal 12.55 (POPCNT) : 621 14 7912.0 10005 79.1 7213 1398 1394 14.0 100
3 Minic 2.16 : 183 10 3606.0 10005 36.0 2942 1328 5735 13.3 100
4 Glaurung 2.2 : 119 10 2890.0 10005 28.9 2306 1168 6531 11.7 100
5 OliThink 5.8.0 : 0 ---- 1603.0 10008 16.0 1159 888 7961 8.9 ---
White advantage = 27.74 +/- 2.92
Draw rate (equal opponents) = 23.37 % +/- 0.40
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Next endeavours for OiThink:
1) Move sorting. It's too simple atm. Noisy moves are ordered by value of the captured piece. Quiet moves are ordered just by one killer and history heuristics.
2) Pruning. Many of the common pruning tricks do not work with OliThink.
3) Mobility evaluation. It's not subtracting point for squares that are (attacked/controlled) by the opponent.
4) More hash: Eval- and Pawnhashs are not efficient, because the Hash probing needs almost as much time as the simple eval-function. Perhaps a KingpawnHash?.
5) Hash-aging: There is no aging yet. Each slot will be overwritten by the next store.