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Created page with "'''Home * People * Jonatan Pettersson''' FILE:Jonatanpettersson.jpg|border|right|thumb|link=https://www.blogger.com/profile/03152085169762414586| Jonatan..."
'''[[Main Page|Home]] * [[People]] * Jonatan Pettersson'''
[[FILE:Jonatanpettersson.jpg|border|right|thumb|link=https://www.blogger.com/profile/03152085169762414586| Jonatan Pettersson <ref>[https://www.blogger.com/profile/03152085169762414586 Blogger: Jonatan Pettersson]</ref> ]]
'''Jonatan Pettersson''',<br/>
a Swedish computer scientist and [[Java]] developer. He is author of the chess engine [[Mediocre]], written in Java <ref>[http://mediocrechess.sourceforge.net/ Mediocre website]</ref>,
and maintains the ''Mediocre Chess blog'', covering the development of his engine and various topics on chess programming, also recently announcing he is working on a new [[Bitboards|bitboard]] based Java engine <ref>[http://mediocrechess.blogspot.com/2019/03/info-still-around.html Still around, Mediocre Chess blog], March 13, 2019</ref>.
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=40671 Blog back on track (Mediocre engine)] by [[Jonatan Pettersson]], [[CCC]], October 07, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40849 Key collision handling] by [[Jonatan Pettersson]], [[CCC]], October 21, 2011 » [[Transposition Table#Collisions|Collisions]], [[Zobrist Hashing]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41223 Mediocre v0.4 released] by [[Jonatan Pettersson]], [[CCC]], November 26, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=44633 Mediocre v0.5 released] by [[Jonatan Pettersson]], [[CCC]], July 30, 2012
=External Links=
* [http://mediocrechess.blogspot.com/ Mediocre Chess blog]
: [http://mediocrechess.blogspot.com/2006/12/0x88-representation.html The 0x88 representation] » [[0x88]]
: [http://mediocrechess.blogspot.com/2007/01/guide-contempt-factor.html Contempt factor] » [[Contempt Factor]]
: [http://mediocrechess.blogspot.com/2007/03/guide-static-exchange-evaluation-see.html Static exchange evaluation (SEE)] » [[Static Exchange Evaluation]]
: [http://mediocrechess.blogspot.com/2011/10/guide-tapered-eval.html Tapered Eval] » [[Tapered Eval]]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Programmer|Pettersson]]
[[FILE:Jonatanpettersson.jpg|border|right|thumb|link=https://www.blogger.com/profile/03152085169762414586| Jonatan Pettersson <ref>[https://www.blogger.com/profile/03152085169762414586 Blogger: Jonatan Pettersson]</ref> ]]
'''Jonatan Pettersson''',<br/>
a Swedish computer scientist and [[Java]] developer. He is author of the chess engine [[Mediocre]], written in Java <ref>[http://mediocrechess.sourceforge.net/ Mediocre website]</ref>,
and maintains the ''Mediocre Chess blog'', covering the development of his engine and various topics on chess programming, also recently announcing he is working on a new [[Bitboards|bitboard]] based Java engine <ref>[http://mediocrechess.blogspot.com/2019/03/info-still-around.html Still around, Mediocre Chess blog], March 13, 2019</ref>.
=Forum Posts=
* [http://www.talkchess.com/forum/viewtopic.php?t=40671 Blog back on track (Mediocre engine)] by [[Jonatan Pettersson]], [[CCC]], October 07, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=40849 Key collision handling] by [[Jonatan Pettersson]], [[CCC]], October 21, 2011 » [[Transposition Table#Collisions|Collisions]], [[Zobrist Hashing]]
* [http://www.talkchess.com/forum/viewtopic.php?t=41223 Mediocre v0.4 released] by [[Jonatan Pettersson]], [[CCC]], November 26, 2011
* [http://www.talkchess.com/forum/viewtopic.php?t=44633 Mediocre v0.5 released] by [[Jonatan Pettersson]], [[CCC]], July 30, 2012
=External Links=
* [http://mediocrechess.blogspot.com/ Mediocre Chess blog]
: [http://mediocrechess.blogspot.com/2006/12/0x88-representation.html The 0x88 representation] » [[0x88]]
: [http://mediocrechess.blogspot.com/2007/01/guide-contempt-factor.html Contempt factor] » [[Contempt Factor]]
: [http://mediocrechess.blogspot.com/2007/03/guide-static-exchange-evaluation-see.html Static exchange evaluation (SEE)] » [[Static Exchange Evaluation]]
: [http://mediocrechess.blogspot.com/2011/10/guide-tapered-eval.html Tapered Eval] » [[Tapered Eval]]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Programmer|Pettersson]]
