New engine releases & news 2021

[Carlos777]

Nice! Seggz and Caffenaited Pawn also use more than 1 core when playing single thread. Lynx does it too, but I think that is on purpose.

Rustic also potentially uses 4 cores when playing, because it has 4 threads active: engine, search, input, and output. For searching however, it only uses one thread (at the moment). So if you run it on a quadcore, it uses 25% of the CPU plus some blips on other cores here and there for the i/o threads and engine i/o handler of the main thread.

Thanks for letting me know, I haven't noticed until now. Also, LittleThought uses more than 1 core sometimes.

[mvanthoor]

Thanks for letting me know, I haven't noticed until now. Also, LittleThought uses more than 1 core sometimes.

I assume many newer engines are constructed like that; at least with an engine thread, and an i/o thread as a minimum. (I chose to have a thread for each engine function; it keeps everything nice and separated.)

[Brunetti]

Blank 1.1.0 is out.

https://github.com/RyanLauQF/BLANK-Chess

Bullet Elo more or less unchanged.

Code: Select all

-------------------------------------------------------------------------------------------------------------
Engines in Blank 1.1.0 64-bit family
-------------------------------------------------------------------------------------------------------------
Rank  Elo   ±  Engine                                      Score Games  Wins Draws  Loss  Oppo time stal ille
-------------------------------------------------------------------------------------------------------------
   1. 1562  22 Blank 1.1.0 64-bit                            45%   874   327   138   409   -40   0%   4%   0%
   2. 1558  22 Blank 1.0 64-bit                              45%   874   319   149   406   -44   0%   4%   0%
   3. 1535  22 Blank 1.0.1 64-bit                            44%   874   314   145   415   -47   0%   3%   0%
-------------------------------------------------------------------------------------------------------------

Alex

[flok]

Nice! Seggz and Caffenaited Pawn also use more than 1 core when playing single thread. Lynx does it too, but I think that is on purpose.

Rustic also potentially uses 4 cores when playing, because it has 4 threads active: engine, search, input, and output. For searching however, it only uses one thread (at the moment). So if you run it on a quadcore, it uses 25% of the CPU plus some blips on other cores here and there for the i/o threads and engine i/o handler of the main thread.

Thanks for letting me know, I haven't noticed until now. Also, LittleThought uses more than 1 core sometimes.

Wow wait: CaffeinatedPawn uses 1 core for search, the other core(s) are the java jvm garbage collector (I'm not kidding)

[flok]

Latest version of CaffeinatedPawn: https://vanheusden.com/chess/Caffeinate ... 54f165.zip

[shahil4242]

Nimko v0.0.5 is out on github Nimko or Nimko_v0.0.5.zip

[Brunetti]

Hopper 1.6 is out.

https://github.com/jonathanmcdermid/Hopper-Chess-Engine

Good increase in bullet Elo, around +100, but still not good the number of crashes:

Code: Select all

-------------------------------------------------------------------------------------------------------------
Engines in Hopper 1.6 64-bit family
-------------------------------------------------------------------------------------------------------------
Rank  Elo   ±  Engine                                      Score Games  Wins Draws  Loss  Oppo time stal ille
-------------------------------------------------------------------------------------------------------------
   1. 2217  30 Hopper 1.6 64-bit                             50%   435   174    85   176    -4   1%   7%   0%
   2. 2115  22 Hopper 1.5 64-bit                             49%   833   332   146   355    -5   4%   3%   0%
   3. 2108  28 Hopper 1.4 64-bit                             50%   485   196    96   193    +4  21%   4%   0%
   4. 1983  22 Hopper 1.3 64-bit                             48%   851   341   135   375   -16   1%   1%   0%
   5. 1961  23 Hopper 1.1 64-bit                             47%   755   303    97   355   -30  19%   1%   0%
   6. 1959  22 Hopper 1.2 64-bit                             47%   823   311   156   356   -21   0%   0%   0%
   7. 1870  22 Hopper 20211004 64-bit                        47%   880   338   145   397   -26   1%   0%   0%
   8. 1819  23 Hopper 20211003 64-bit                        49%   808   350    95   363    -3   1%   1%   1%
-------------------------------------------------------------------------------------------------------------

Alex

[jmcd]

Hopper 1.6 is out.

https://github.com/jonathanmcdermid/Hopper-Chess-Engine

Good increase in bullet Elo, around +100, but still not good the number of crashes:

Code: Select all

-------------------------------------------------------------------------------------------------------------
Engines in Hopper 1.6 64-bit family
-------------------------------------------------------------------------------------------------------------
Rank  Elo   ±  Engine                                      Score Games  Wins Draws  Loss  Oppo time stal ille
-------------------------------------------------------------------------------------------------------------
   1. 2217  30 Hopper 1.6 64-bit                             50%   435   174    85   176    -4   1%   7%   0%
   2. 2115  22 Hopper 1.5 64-bit                             49%   833   332   146   355    -5   4%   3%   0%
   3. 2108  28 Hopper 1.4 64-bit                             50%   485   196    96   193    +4  21%   4%   0%
   4. 1983  22 Hopper 1.3 64-bit                             48%   851   341   135   375   -16   1%   1%   0%
   5. 1961  23 Hopper 1.1 64-bit                             47%   755   303    97   355   -30  19%   1%   0%
   6. 1959  22 Hopper 1.2 64-bit                             47%   823   311   156   356   -21   0%   0%   0%
   7. 1870  22 Hopper 20211004 64-bit                        47%   880   338   145   397   -26   1%   0%   0%
   8. 1819  23 Hopper 20211003 64-bit                        49%   808   350    95   363    -3   1%   1%   1%
-------------------------------------------------------------------------------------------------------------

Alex

Thanks alex! The crashes add character

Seriously though I am not sure why the crashes occur. I noticed that I was allowing transposition entries to be used in pv nodes in 1.5 which caused some stalls because it would reach whatever depth was in the transposition table almost instantaneously and then suddenly need to take way more time on the next search. This was fixed in 1.6 but clearly there is something else that causes them as well.

[Brunetti]

Latest version of CaffeinatedPawn: https://vanheusden.com/chess/Caffeinate ... 54f165.zip

No particular improvements:

Code: Select all

-------------------------------------------------------------------------------------------------------------
Engines in CaffeinatedPawn 54f165 64-bit family
-------------------------------------------------------------------------------------------------------------
Rank  Elo   ±  Engine                                      Score Games  Wins Draws  Loss  Oppo time stal ille
-------------------------------------------------------------------------------------------------------------
   1. 1771  29 CaffeinatedPawn f54f165 64-bit                43%   516   175    92   249   -60   0%   0%   0%
   2. 1768  21 CaffeinatedPawn 95458ab 64-bit                44%   943   337   153   453   -52   0%   0%   0%
   3. 1762  21 CaffeinatedPawn 6d214df 64-bit                44%   931   323   174   434   -47   0%   0%   0%
   4. 1754  22 CaffeinatedPawn 0346f64 64-bit                43%   908   318   153   437   -55   0%   0%   0%
   5. 1628  33 CaffeinatedPawn 46203a4 64-bit                44%   451   193    15   243   -51   0%  22%   0%
   6. 1587  21 CaffeinatedPawn 54311af 64-bit                45%   950   352   160   438   -38   0%   0%   0%
-------------------------------------------------------------------------------------------------------------

Alex

[flok]

Latest version of CaffeinatedPawn: https://vanheusden.com/chess/Caffeinate ... 54f165.zip

No particular improvements:

Code: Select all

-------------------------------------------------------------------------------------------------------------
Engines in CaffeinatedPawn 54f165 64-bit family
-------------------------------------------------------------------------------------------------------------
Rank  Elo   ±  Engine                                      Score Games  Wins Draws  Loss  Oppo time stal ille
-------------------------------------------------------------------------------------------------------------
   1. 1771  29 CaffeinatedPawn f54f165 64-bit                43%   516   175    92   249   -60   0%   0%   0%
   2. 1768  21 CaffeinatedPawn 95458ab 64-bit                44%   943   337   153   453   -52   0%   0%   0%
   3. 1762  21 CaffeinatedPawn 6d214df 64-bit                44%   931   323   174   434   -47   0%   0%   0%
   4. 1754  22 CaffeinatedPawn 0346f64 64-bit                43%   908   318   153   437   -55   0%   0%   0%
   5. 1628  33 CaffeinatedPawn 46203a4 64-bit                44%   451   193    15   243   -51   0%  22%   0%
   6. 1587  21 CaffeinatedPawn 54311af 64-bit                45%   950   352   160   438   -38   0%   0%   0%
-------------------------------------------------------------------------------------------------------------

Alex

Impossibru!
There should've been a +70 elo improvement.