Arasan Test Suite

The arasan20 testsuite is a set of 200 chess problems, drawn from a variety of human and computer games. They range in difficulty, but most are non-trivial and some are quite hard.Some positions in this file are "avoid move" positions where there is a bad but superficially tempting move. The testsuite was last modified 27-Apr-2017.

You can download the test positions below:

Download Arasan Testsuite (EPD format)

Some older versions are also available:

Arasan Testsuite (version 19a)
Arasan Testsuite (version 18)
Arasan Testsuite (version 17)
Arasan Testsuite (version 16)
Arasan Testsuite (version 15)
Arasan Testsuite (version 14)
Arasan Testsuite (version 13)
Arasan Testsuite (version 12)
Arasan Testsuite (version 11)
Arasan Testsuite (version 10)