Changes

Sjaak and Leonidas are able to play various chess variants <ref>[http://www.eglebbk.dds.nl/program/chess-index.html Chess (Jazz & Sjaak) home]</ref>, Sjaak not to confused with [[Ronald de Man|Ronald de Man's]] engine with the same name <ref>[http://www.talkchess.com/forum3/viewtopic.php?f=7&t=37713&start=2 Re: New Spartan-Chess engine: Sjaak] by [[Vladimir Xern]], [[CCC]], January 21, 2011</ref>.

<ref>[https://dblp.uni-trier.de/pers/hd/g/Glebbeek:Evert dblp: Evert Glebbeek]</ref> <ref>[https://arxiv.org/search/astro-ph?searchtype=author&query=Glebbeek%2C+E Search E. Glebbeek arXiv e-print repository]</ref>

==2006 ...==