Embla

"En gammel skole sjakk program"

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Embla

What is it?

A chess program (one that plays, not a chess board).

Play against it

You can play against it on FreeChess.org or by downloading it to your computer.

How it works

Run it from e.g. Arena or xboard/winboard with polyglot.

This page explains how to install Embla in Arena.

If you would like to play against Embla on a Mac, see this page.

Download

Please note: Embla is a UCI chess engine.
You can find ready-made packages for Debian and other Linux distributions in this location. It also contains a zip-file with a Microsoft_Windows 64 bit exe (compiled using Cygwin).

download

For opening book you can use any polyglot book file. E.g. the ones from rebel.

Version history

Version 0.9.7: stronger play

Version 0.9.6: couple of micro-optimalizations

Version 0.9.5: polyglot book support, strength improvement

Version 0.9.4.1: fix for segfault in cutechess

Version 0.9-0.9.4 improve play strength

Version 0.8 adds syzygy endgame database-support

Version 0.7.1 fixes the issues with pondering.

Version 0.5 is the first version winning a game against an other chess engine!

Rating

I pinned the rating of 0.9.6 to 2000 as that is the rating at FICS (2016/12/18).

"sts" is "strategic test squite".

"wac" is "win at chess" - ran with 250ms think time.

"bratko/kopec" is "bratko kopec test" - ran with 250ms think time.

versionelostswacbratko/kopec
0.9.72090689022911
0.9.6200066392099
0.9.5191965261848
0.9.4.1176862781468
0.9.463081468
0.9.3165364661277
0.9.265451258
0.9.164811209