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Crystal focuses on better [[Chess Problems, Compositions and Studies|problem solving]] abilities, and includes [[Fortress|fortress]] detection code.
It further addresses some rarely occurring positional or [[Tactics|tactical]] blindness due to too aggressive [[Reductions|reductions]] and [[Pruning|pruning]].
Crystal 3.0, released in September 2020, is able to use [[NNUE]] evaluaton <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75072 Crystal 3.0] by [[Joseph Ellis]], [[CCC]], September 10, 2020</ref>.
=Forum Posts=
==2019==
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71547 Crystal] by [[Joseph Ellis]], [[CCC]], August 14, 2019* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71681 Crystal, the new tactical monster] by [[Dann Corbit]], [[CCC]], August 28, 2019* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=71903 Honey and Crystal-Honey X5j Releases] by [[Michael Byrne|MikeB]], [[CCC]], September 24, 2019 * [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=72368 Crystal solves a 74 mover ... in 11 seconds] by [[Jouni Uski]], November 19, 2019
==2020 ...==
* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=73594 Crystal Update] by [[Joseph Ellis]], [[CCC]], April 08, 2020* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74095 Bug in Crystal ?] by [[Vincent Lejeune]], [[CCC]], June 04, 2020* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=74175 I think Crystal must have an eval bug] by [[Dann Corbit]], [[CCC]], June 14, 2020* [http://www.talkchess.com/forum3/viewtopic.php?f=2&t=75072 Crystal 3.0] by [[Joseph Ellis]], [[CCC]], September 10, 2020
=External Links=
