New engine releases 2019

[konsolas]

I'm just going to slide Topple v0.3.6 in here: https://github.com/konsolas/ToppleChess ... tag/v0.3.6

[voffka]

Hello,

Igel 1.3 is released at https://github.com/vshcherbyna/igel/releases/tag/1.3 . What's new:

- New eval terms for pair of rooks, knights, bishops, connected pawns

Approx. strength compared to Igel 1.2 is around 15 elo on single thread. I was also doing some tests to see performance improvements for lazy smp in Igel and it seems to be around 100 elo when using 11 threads against 1 thread:

threads=1 (for 1.2)
threads=11 (for 1.3)
hash=6GB
tc all/60+0.6
Score of Igel 1.2 64 POPCNT vs Igel 1.3 64 POPCNT: 38 - 138 - 97 [0.317] 273
Elo difference: -133.47 +/- 34.12

[Gabor Szots]

Gogobello 2.0 64-bit

http://sasachess.altervista.org/gogobello/

[Guenther]

In the thread below for the upcoming GSEI tournament there are
several new releases (+betas) hidden :)

viewtopic.php?f=6&t=70084

[ljgw]

I'm happy to announce FrankWalter 2.3.5 - https://github.com/ljgw/frankwalter/releases/tag/v2.3.5

main new features:
* much improved LMR
* frankwalter.exe -> an executable wrapper generated by launch4j which should find and use the most suitable java runtime to run FrankWalter (can be used when people have problems setting up the FrankWalter java engine in their favorite GUI)
* longer PV shown in some specific situations

bugfixes:
* fixed a Transposition Table bug
* fixed inconsistent state after doMove / undoMove (obviously not a big inconsistency, but it has had its effects)

Results after 370 40/3 games on my machine:

Code: Select all

Rank Name                          Elo     +/-   Games   Score   Draws
   1 fw235                          58      29     370   58.2%   33.8%
   2 fwsnap                         47      29     370   56.8%   33.5%
   3 olithink                       14      31     370   52.0%   25.7%
   4 fw234                        -123      30     370   33.0%   32.4%
   

[xr_a_y]

I'm happy to announce FrankWalter 2.3.5 - https://github.com/ljgw/frankwalter/releases/tag/v2.3.5

main new features:
* much improved LMR
* frankwalter.exe -> an executable wrapper generated by launch4j which should find and use the most suitable java runtime to run FrankWalter (can be used when people have problems setting up the FrankWalter java engine in their favorite GUI)
* longer PV shown in some specific situations

bugfixes:
* fixed a Transposition Table bug
* fixed inconsistent state after doMove / undoMove (obviously not a big inconsistency, but it has had its effects)

Results after 370 40/3 games on my machine:

Code: Select all

Rank Name                          Elo     +/-   Games   Score   Draws
   1 fw235                          58      29     370   58.2%   33.8%
   2 fwsnap                         47      29     370   56.8%   33.5%
   3 olithink                       14      31     370   52.0%   25.7%
   4 fw234                        -123      30     370   33.0%   32.4%
   

Wow that is huge versus 2.3.4!

[ljgw]

Well, I'm a bit skeptical; I should really invest in setting up some more opponents locally and run gauntlets:-)

but that there is an improvement is undeniable^^

[MikeB]

dev-McCain X2a (source only you must compile your own exe's) has been updated with both dev SF and McCain updates.
https://github.com/MichaelB7/Stockfish/tree/McCain
With the McCain source, you build both current devSF or current dev-McCain - which version you build is whether or not comment or uncomment line 34
### Uncomment the line below for McCain, comment out for Stockfish
VERSION=maverick
If you build current-dev-SF, it will also have all the bells and whistles for 3 opening books, play by Elo etc that McCain has

It played pretty well in a short match of 400 games at STC - ymmv naturally. In my opinion, this more is likely an aberration than any real indicator of strength. When it looks too good, it is usually not true. I have not introduced anything of significance lately that would justify this result. I did check the pgn field to make sure there were no time flags ( usually indicates a crash by one of the engines).

Code: Select all

400 rounds and 400 games completed...
Time control: 15 seconds + .500 seconds
Target completion: 03/11/19 : 00:04:29
Date: 03/11/19 : 00:55:09
400 game(s) loaded
Rank Name                      Rating   Δ     +    -     #     Σ    Σ%     W    L    D   W%    =%   OppR 
---------------------------------------------------------------------------------------------------------
   1 McCain X2a                 3109   0.0   20   20   400  210.0  52.5   79   59  262  19.8  65.5  3091 
   2 Stockfish 110319 64 POPC   3091  17.6   20   20   400  190.0  47.5   59   79  262  14.8  65.5  3109 
---------------------------------------------------------------------------------------------------------
Time to complete: 00:50:41

Of particular note, for those with macOS (N/A for other OS), it has this thread stack size bug update by Marco Costalba:
]https://github.com/official-stockfish/ ... /pull/2035

As an fyi, I'm working on a standalone mate finder type program (to be named "1st-Mate") which will combine both McCain and Matefinder by Joe Ellis - the source has not yet been released publicly, but when it is released it will never be as fast as Joe Ellis' matefinder in finding mates, but more of a hybrid engine between McCain and Matefinder.
Also, I have updated Joe Ellis' matefinder code with the latest dev-SF code to the best of my abilities ( again you must compile your own exe's). This might be of some interest since Joe's matefinder code has not been updated on GitHub since late December.
https://github.com/MichaelB7/Stockfish/tree/mate_finder

[maxdeg]

dev-McCain X2a (source only you must compile your own exe's) has been updated with both dev SF and McCain updates.

Thanks for this Mike - I tried compiling and I got one warning and one error - this is just a FYI ..
I'll wait for the official macOS release.

ic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o search.o search.cpp
search.cpp17: warning: unused function 'futility_move_count'
[-Wunused-function]
constexpr int futility_move_count(bool improving, int depth) {
^
1 warning generated.
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o thread.o thread.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o timeman.o timeman.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o tt.o tt.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o uci.o uci.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o ucioption.o ucioption.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o polybook.o polybook.cpp
g++ -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto -c -o syzygy/tbprobe.o syzygy/tbprobe.cpp
g++ -o McCain-X2a benchmark.o bitbase.o bitboard.o endgame.o evaluate.o main.o material.o misc.o movegen.o movepick.o pawns.o position.o psqt.o search.o thread.o timeman.o tt.o uci.o ucioption.o polybook.o syzygy/tbprobe.o -m64 -arch x86_64 -mmacosx-version-min=10.14 -lpthread -DAdd_Features -DMaverick -march=native -Wall -Wcast-qual -fno-exceptions -std=c++11 -pedantic -Wextra -Wshadow -m64 -arch x86_64 -mmacosx-version-min=10.14 -DNDEBUG -O3 -mdynamic-no-pic -DIS_64BIT -msse -msse3 -mpopcnt -DUSE_POPCNT -DUSE_PEXT -mbmi2 -flto
strip McCain-X2a
cp McCain-X2a /Users/michaelbyrne/cluster.mfb
cp: /Users/michaelbyrne/cluster.mfb: No such file or directory
make: *** [build] Error 1
➜ src

[Norbert Raimund Leisner]

LCZero 0.21.0 https://github.com/LeelaChessZero/lc0/releases