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'''[[Main Page|Home]] * [[People]] * Lyudmil Tsvetkov'''
[[FILE:LTsvetkov_2013.JPG|border|right|thumb| Lyudmil Tsvetkov <ref>Photos Courtesy of Lyudmil Tsvetkov</ref> ]]
'''Lyudmil Tsvetkov''',<br/>
a Bulgarian former diplomat <ref>[http://www.dfa.ie/home/index.aspx?id=37646 Department of Foreign Affairs - New Ambassadors present Credentials]</ref>, chess player <ref>[http://www.365chess.com/players/Ludmil_Tsvetkov Ludmil Tsvetkov chess games - 365Chess.com]</ref> and computer chess expert and author.
In 2010, Lyudmil Tsvetkov published a ''Little Chess Evaluation Compendium'' elaborating on quantitative [[Evaluation|evaluation]] features in chess <ref>[[Lyudmil Tsvetkov]] ('''2010'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium-2010-04-07.pdf|2010 pdf]]</ref>, in 2012 an Addendum.
Not a chess programmer by himself, Lyudmil contributed in [[CCC]] and kept developers and test departments busy in pointing out certain weaknesses of engines with the proposal of [[Evaluation Patterns|pattern]] and concrete weights concerning evaluation, often controversial discussed with [https://en.wikipedia.org/wiki/Orthogonality non-orthogonality] as essence of his critics, as summarized by [[Louis Zulli]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52697&start=9 Thanks] by [[Louis Zulli]], [[CCC]], June 20, 2014</ref>.
=Selected Publications=
==2010 ...==
* [[Lyudmil Tsvetkov]] ('''2010'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium-2010-04-07.pdf|2010 pdf]]
* [[Lyudmil Tsvetkov]] ('''2012'''). ''An Addendum to a Little Chess Evaluation Compendium''.
: [[Media:addendumlcec_2012.pdf|Addendum June 2012 pdf]]
: [[Media:Addendum2LCEC_2012.pdf|Addendum 2 September 2012 pdf]]
: [[Media:Addendum3LCEC_2012.pdf|Addendum 3 September 2012 pdf]]
: [[Media:addendum4lcec_2012.pdf|Addendum 4 November 2012 pdf]]
: [[Media:Addendum5LCEC_2012.pdf|Addendum 5 November 27, 2012 pdf]]
: [[Media:Addendum6LCEC_2012.pdf|Addendum 6 December 03, 2012 pdf]]
* [[Lyudmil Tsvetkov]] ('''2012'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium.pdf|July 2012 pdf]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=44265 An Update of the Addendum to the LittleCompendium] by [[Lyudmil Tsvetkov]], [[CCC]], July 02, 2012</ref>, [[Media:LittleChessEvaluationCompendium.pdf|December 03, 2012 pdf]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=46166 Post-final release of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 27, 2012</ref>
==2015 ...==
* [[Lyudmil Tsvetkov]] ('''2017'''). ''[http://www.secretofchess.com/ The Secret of Chess]''. [https://www.amazon.com/Secret-Chess-Lyudmil-Tsvetkov-ebook/dp/B074M85CVV amazon] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64776 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[CCC]], August 01, 2017</ref> <ref>[http://davidsmerdon.com/?p=1970 The Secret of Chess? - Review] by [https://en.wikipedia.org/wiki/David_Smerdon David Smerdon], December 03, 2017</ref> <ref>[https://en.chessbase.com/post/the-secret-of-chess The Secret of Chess] by [https://en.wikipedia.org/wiki/David_Smerdon David Smerdon], [[ChessBase|ChessBase News]], December 22, 2017</ref>
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Pawns''. [https://www.amazon.com/Pawns-Lyudmil-Tsvetkov-ebook/dp/B074S2MYQV amazon]
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Human Versus Machine: How To Beat Stockfish and Komodo Part I''. [https://www.amazon.com/Human-Versus-Machine-Stockfish-Komodo/dp/1549916785/ref=pd_sbs_14_1?_encoding=UTF8&psc=1&refRID=FBG86QDJJ6KEC9R3S3R6 amazon] <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=8613 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Hiarcs Forum]], October 08, 2017</ref>
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Human Versus Machine: How To Beat Stockfish and Komodo Part II''. [https://www.amazon.com/Human-Versus-Machine-Stockfish-Komodo/dp/1973149176/ref=pd_sbs_14_1?_encoding=UTF8&psc=1&refRID=E45S7G3F2K5VWGZATMJ9 amazon]
=Forum Posts=
==2012==
* [http://www.talkchess.com/forum/viewtopic.php?p=469512 New Installment of my Project on Chess Evaluation] by [[Lyudmil Tsvetkov]], [[CCC]], June 16, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=45407 The same as 10 years ago] by [[Lyudmil Tsvetkov]], [[CCC]], October 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=45806 Small update of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=46166 Post-final release of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 27, 2012
==2013==
* [http://www.talkchess.com/forum/viewtopic.php?t=46878 How do you assess this position?] by [[Lyudmil Tsvetkov]], [[CCC]], January 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46914 The two bishops are letting me down] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46915 The space advantage that was non-existent] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46916 Blockade] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46917 Opposing the unopposed pawn] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46918 The eternal knight] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013 » [[Outposts]]
* [http://www.talkchess.com/forum/viewtopic.php?t=46919 On the verge of losing] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46957 The backward passer] by [[Lyudmil Tsvetkov]], [[CCC]], January 21, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48349 First move advantage] by [[Lyudmil Tsvetkov]], [[CCC]], June 19, 2013 » [[Opening]], [[Tempo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48841 Safe spatial mobility] by [[Lyudmil Tsvetkov]], [[CCC]], August 04, 2013 » [[Mobility]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48844 Castling long] by [[Lyudmil Tsvetkov]], [[CCC]], August 05, 2013 » [[Castling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49333 The worst pawn weakness] by [[Lyudmil Tsvetkov]], [[CCC]], September 13, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49357 Crazy theories] by [[Lyudmil Tsvetkov]], [[CCC]], September 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49808 A balanced approach to imbalances] by [[Lyudmil Tsvetkov]], [[CCC]], October 23, 2013 » [[Material]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49857 Elephantiasis: reality or myth?] by [[Lyudmil Tsvetkov]], [[CCC]], October 28, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50358 2 Moves Engine Book] by [[Lyudmil Tsvetkov]], [[CCC]], December 07, 2013 » [[Opening Book]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50504 Lonely queen] by [[Lyudmil Tsvetkov]], [[CCC]], December 15, 2013 » [[Material]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50628 My Stockfish wish for 2014] by [[Lyudmil Tsvetkov]], [[CCC]], December 24, 2013 » [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50667 You are KIDding me] by [[Lyudmil Tsvetkov]], [[CCC]], December 28, 2013 <ref>[https://en.wikipedia.org/wiki/King%27s_Indian_Defence King's Indian Defence from Wikipedia]</ref>
==2014==
* [http://www.talkchess.com/forum/viewtopic.php?t=50778 Crude, cruder, crudest] by [[Lyudmil Tsvetkov]], [[CCC]], January 05, 2014 » [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50850 The Fried Fish Attack] by [[Lyudmil Tsvetkov]], [[CCC]], January 10, 2014 <ref>[https://en.wikipedia.org/wiki/Two_Knights_Defense,_Fried_Liver_Attack Two Knights Defense, Fried Liver Attack - Wikipedia]</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=51012 5 underestimated evaluation rules] by [[Lyudmil Tsvetkov]], [[CCC]], January 23, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Stockfish]], [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52300 What is a backward pawn?] by [[Lyudmil Tsvetkov]], [[CCC]], May 12, 2014 » [[Backward Pawn]], [[Backward Pawns (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52382 The phalanx concept] by [[Lyudmil Tsvetkov]], [[CCC]], May 21, 2014 » [[Duo Trio Quart (Bitboards)|Duo Trio Quart]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52383 The Superfinal] by [[Lyudmil Tsvetkov]], [[CCC]], May 21, 2014 » [[TCEC Season 6#Superfinal|TCEC Season 6 - Superfinal]], [[Komodo]] vs. [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52697 Redundant knight] by [[Lyudmil Tsvetkov]], [[CCC]], June 20, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52757 Scaling eval with material on the board] by [[Lyudmil Tsvetkov]], [[CCC]], June 25, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52774 King shelter x-ray attacks] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[King Safety]], [[X-ray Attacks (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52775 Obligatory scaling] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[Rook Endgame]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52779 Heavy piece shelter] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[King Safety]]
==2015==
* [http://www.talkchess.com/forum/viewtopic.php?t=55214 Binders] by [[Lyudmil Tsvetkov]], [[CCC]], February 04, 2015 » [[Pawn Structure]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55272 LCP] by [[Lyudmil Tsvetkov]], [[CCC]], February 09, 2015 » [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55290 En passant bonus] by [[Lyudmil Tsvetkov]], [[CCC]], February 10, 2015 » [[En passant]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55292 Pawn checks and center levers] by [[Lyudmil Tsvetkov]], [[CCC]], February 11, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55324 So same, so different] by [[Lyudmil Tsvetkov]], [[CCC]], February 12, 2015 » [[Rook on Open File]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55319 Kind of backward] by [[Lyudmil Tsvetkov]], [[CCC]], February 13, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55342 Empty!] by [[Lyudmil Tsvetkov]], [[CCC]], February 14, 2015 » [[Square Control]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55343 Double pawn push] by [[Lyudmil Tsvetkov]], [[CCC]], February 14, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55376 Kingside fianchetto] by [[Lyudmil Tsvetkov]], [[CCC]], February 18, 2015 » [[Fianchetto]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55380 Pawn defence] by [[Lyudmil Tsvetkov]], [[CCC]], February 18, 2015 » [[Connectivity]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55392 The strongest passer] by [[Lyudmil Tsvetkov]], [[CCC]], February 19, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55462 Longer chain pawn again] by [[Lyudmil Tsvetkov]], [[CCC]], February 25, 2015 » [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55897 Couple more ideas] by [[Lyudmil Tsvetkov]], [[CCC]], April 05, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=56191 Lever evaluation] by [[Lyudmil Tsvetkov]], [[CCC]], May 01, 2015 » [[Pawn Levers (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56206 Chain, duo, connected] by [[Lyudmil Tsvetkov]], [[CCC]], May 02, 2015 » [[Pawn Chain]], [[Duo Trio Quart (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56213 Some more pawns] by [[Lyudmil Tsvetkov]], [[CCC]], May 03, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=56282 Assorted tweaks] by [[Lyudmil Tsvetkov]], [[CCC]], May 08, 2015
==2016 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=60372 Long-term project] by [[Lyudmil Tsvetkov]], [[CCC]], June 05, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=64776 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[CCC]], August 01, 2017
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=32234 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Rybka Forum]], August 02, 2017
* [http://www.hiarcs.net/forums/viewtopic.php?t=8613 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Hiarcs Forum]], October 08, 2017
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=32312 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Rybka Forum]], October 08, 2017
=External Links=
* [http://ratings.fide.com/card.phtml?event=2905850 Tzvetkov, Ljudmil FIDE Chess Profile]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player|Tsvetkov]]
[[FILE:LTsvetkov_2013.JPG|border|right|thumb| Lyudmil Tsvetkov <ref>Photos Courtesy of Lyudmil Tsvetkov</ref> ]]
'''Lyudmil Tsvetkov''',<br/>
a Bulgarian former diplomat <ref>[http://www.dfa.ie/home/index.aspx?id=37646 Department of Foreign Affairs - New Ambassadors present Credentials]</ref>, chess player <ref>[http://www.365chess.com/players/Ludmil_Tsvetkov Ludmil Tsvetkov chess games - 365Chess.com]</ref> and computer chess expert and author.
In 2010, Lyudmil Tsvetkov published a ''Little Chess Evaluation Compendium'' elaborating on quantitative [[Evaluation|evaluation]] features in chess <ref>[[Lyudmil Tsvetkov]] ('''2010'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium-2010-04-07.pdf|2010 pdf]]</ref>, in 2012 an Addendum.
Not a chess programmer by himself, Lyudmil contributed in [[CCC]] and kept developers and test departments busy in pointing out certain weaknesses of engines with the proposal of [[Evaluation Patterns|pattern]] and concrete weights concerning evaluation, often controversial discussed with [https://en.wikipedia.org/wiki/Orthogonality non-orthogonality] as essence of his critics, as summarized by [[Louis Zulli]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=52697&start=9 Thanks] by [[Louis Zulli]], [[CCC]], June 20, 2014</ref>.
=Selected Publications=
==2010 ...==
* [[Lyudmil Tsvetkov]] ('''2010'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium-2010-04-07.pdf|2010 pdf]]
* [[Lyudmil Tsvetkov]] ('''2012'''). ''An Addendum to a Little Chess Evaluation Compendium''.
: [[Media:addendumlcec_2012.pdf|Addendum June 2012 pdf]]
: [[Media:Addendum2LCEC_2012.pdf|Addendum 2 September 2012 pdf]]
: [[Media:Addendum3LCEC_2012.pdf|Addendum 3 September 2012 pdf]]
: [[Media:addendum4lcec_2012.pdf|Addendum 4 November 2012 pdf]]
: [[Media:Addendum5LCEC_2012.pdf|Addendum 5 November 27, 2012 pdf]]
: [[Media:Addendum6LCEC_2012.pdf|Addendum 6 December 03, 2012 pdf]]
* [[Lyudmil Tsvetkov]] ('''2012'''). ''Little Chess Evaluation Compendium''. [[Media:LittleChessEvaluationCompendium.pdf|July 2012 pdf]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=44265 An Update of the Addendum to the LittleCompendium] by [[Lyudmil Tsvetkov]], [[CCC]], July 02, 2012</ref>, [[Media:LittleChessEvaluationCompendium.pdf|December 03, 2012 pdf]] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=46166 Post-final release of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 27, 2012</ref>
==2015 ...==
* [[Lyudmil Tsvetkov]] ('''2017'''). ''[http://www.secretofchess.com/ The Secret of Chess]''. [https://www.amazon.com/Secret-Chess-Lyudmil-Tsvetkov-ebook/dp/B074M85CVV amazon] <ref>[http://www.talkchess.com/forum/viewtopic.php?t=64776 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[CCC]], August 01, 2017</ref> <ref>[http://davidsmerdon.com/?p=1970 The Secret of Chess? - Review] by [https://en.wikipedia.org/wiki/David_Smerdon David Smerdon], December 03, 2017</ref> <ref>[https://en.chessbase.com/post/the-secret-of-chess The Secret of Chess] by [https://en.wikipedia.org/wiki/David_Smerdon David Smerdon], [[ChessBase|ChessBase News]], December 22, 2017</ref>
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Pawns''. [https://www.amazon.com/Pawns-Lyudmil-Tsvetkov-ebook/dp/B074S2MYQV amazon]
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Human Versus Machine: How To Beat Stockfish and Komodo Part I''. [https://www.amazon.com/Human-Versus-Machine-Stockfish-Komodo/dp/1549916785/ref=pd_sbs_14_1?_encoding=UTF8&psc=1&refRID=FBG86QDJJ6KEC9R3S3R6 amazon] <ref>[http://www.hiarcs.net/forums/viewtopic.php?t=8613 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Hiarcs Forum]], October 08, 2017</ref>
* [[Lyudmil Tsvetkov]] ('''2017'''). ''Human Versus Machine: How To Beat Stockfish and Komodo Part II''. [https://www.amazon.com/Human-Versus-Machine-Stockfish-Komodo/dp/1973149176/ref=pd_sbs_14_1?_encoding=UTF8&psc=1&refRID=E45S7G3F2K5VWGZATMJ9 amazon]
=Forum Posts=
==2012==
* [http://www.talkchess.com/forum/viewtopic.php?p=469512 New Installment of my Project on Chess Evaluation] by [[Lyudmil Tsvetkov]], [[CCC]], June 16, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=45407 The same as 10 years ago] by [[Lyudmil Tsvetkov]], [[CCC]], October 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=45806 Small update of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 01, 2012
* [http://www.talkchess.com/forum/viewtopic.php?t=46166 Post-final release of the Little Compendium] by [[Lyudmil Tsvetkov]], [[CCC]], November 27, 2012
==2013==
* [http://www.talkchess.com/forum/viewtopic.php?t=46878 How do you assess this position?] by [[Lyudmil Tsvetkov]], [[CCC]], January 14, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46914 The two bishops are letting me down] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46915 The space advantage that was non-existent] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46916 Blockade] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46917 Opposing the unopposed pawn] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46918 The eternal knight] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013 » [[Outposts]]
* [http://www.talkchess.com/forum/viewtopic.php?t=46919 On the verge of losing] by [[Lyudmil Tsvetkov]], [[CCC]], January 18, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=46957 The backward passer] by [[Lyudmil Tsvetkov]], [[CCC]], January 21, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=48349 First move advantage] by [[Lyudmil Tsvetkov]], [[CCC]], June 19, 2013 » [[Opening]], [[Tempo]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48841 Safe spatial mobility] by [[Lyudmil Tsvetkov]], [[CCC]], August 04, 2013 » [[Mobility]]
* [http://www.talkchess.com/forum/viewtopic.php?t=48844 Castling long] by [[Lyudmil Tsvetkov]], [[CCC]], August 05, 2013 » [[Castling]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49333 The worst pawn weakness] by [[Lyudmil Tsvetkov]], [[CCC]], September 13, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49357 Crazy theories] by [[Lyudmil Tsvetkov]], [[CCC]], September 15, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=49808 A balanced approach to imbalances] by [[Lyudmil Tsvetkov]], [[CCC]], October 23, 2013 » [[Material]]
* [http://www.talkchess.com/forum/viewtopic.php?t=49857 Elephantiasis: reality or myth?] by [[Lyudmil Tsvetkov]], [[CCC]], October 28, 2013
* [http://www.talkchess.com/forum/viewtopic.php?t=50358 2 Moves Engine Book] by [[Lyudmil Tsvetkov]], [[CCC]], December 07, 2013 » [[Opening Book]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50504 Lonely queen] by [[Lyudmil Tsvetkov]], [[CCC]], December 15, 2013 » [[Material]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50628 My Stockfish wish for 2014] by [[Lyudmil Tsvetkov]], [[CCC]], December 24, 2013 » [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50667 You are KIDding me] by [[Lyudmil Tsvetkov]], [[CCC]], December 28, 2013 <ref>[https://en.wikipedia.org/wiki/King%27s_Indian_Defence King's Indian Defence from Wikipedia]</ref>
==2014==
* [http://www.talkchess.com/forum/viewtopic.php?t=50778 Crude, cruder, crudest] by [[Lyudmil Tsvetkov]], [[CCC]], January 05, 2014 » [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=50850 The Fried Fish Attack] by [[Lyudmil Tsvetkov]], [[CCC]], January 10, 2014 <ref>[https://en.wikipedia.org/wiki/Two_Knights_Defense,_Fried_Liver_Attack Two Knights Defense, Fried Liver Attack - Wikipedia]</ref>
* [http://www.talkchess.com/forum/viewtopic.php?t=51012 5 underestimated evaluation rules] by [[Lyudmil Tsvetkov]], [[CCC]], January 23, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52117&start=1 Huge simplification] by [[Lyudmil Tsvetkov]], [[CCC]], April 25, 2014 » [[Stockfish]], [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52300 What is a backward pawn?] by [[Lyudmil Tsvetkov]], [[CCC]], May 12, 2014 » [[Backward Pawn]], [[Backward Pawns (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52382 The phalanx concept] by [[Lyudmil Tsvetkov]], [[CCC]], May 21, 2014 » [[Duo Trio Quart (Bitboards)|Duo Trio Quart]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52383 The Superfinal] by [[Lyudmil Tsvetkov]], [[CCC]], May 21, 2014 » [[TCEC Season 6#Superfinal|TCEC Season 6 - Superfinal]], [[Komodo]] vs. [[Stockfish]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52697 Redundant knight] by [[Lyudmil Tsvetkov]], [[CCC]], June 20, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52757 Scaling eval with material on the board] by [[Lyudmil Tsvetkov]], [[CCC]], June 25, 2014
* [http://www.talkchess.com/forum/viewtopic.php?t=52774 King shelter x-ray attacks] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[King Safety]], [[X-ray Attacks (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52775 Obligatory scaling] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[Rook Endgame]]
* [http://www.talkchess.com/forum/viewtopic.php?t=52779 Heavy piece shelter] by [[Lyudmil Tsvetkov]], [[CCC]], June 27, 2014 » [[King Safety]]
==2015==
* [http://www.talkchess.com/forum/viewtopic.php?t=55214 Binders] by [[Lyudmil Tsvetkov]], [[CCC]], February 04, 2015 » [[Pawn Structure]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55272 LCP] by [[Lyudmil Tsvetkov]], [[CCC]], February 09, 2015 » [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55290 En passant bonus] by [[Lyudmil Tsvetkov]], [[CCC]], February 10, 2015 » [[En passant]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55292 Pawn checks and center levers] by [[Lyudmil Tsvetkov]], [[CCC]], February 11, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55324 So same, so different] by [[Lyudmil Tsvetkov]], [[CCC]], February 12, 2015 » [[Rook on Open File]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55319 Kind of backward] by [[Lyudmil Tsvetkov]], [[CCC]], February 13, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55342 Empty!] by [[Lyudmil Tsvetkov]], [[CCC]], February 14, 2015 » [[Square Control]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55343 Double pawn push] by [[Lyudmil Tsvetkov]], [[CCC]], February 14, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55376 Kingside fianchetto] by [[Lyudmil Tsvetkov]], [[CCC]], February 18, 2015 » [[Fianchetto]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55380 Pawn defence] by [[Lyudmil Tsvetkov]], [[CCC]], February 18, 2015 » [[Connectivity]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55392 The strongest passer] by [[Lyudmil Tsvetkov]], [[CCC]], February 19, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=55462 Longer chain pawn again] by [[Lyudmil Tsvetkov]], [[CCC]], February 25, 2015 » [[Pawn Chain]]
* [http://www.talkchess.com/forum/viewtopic.php?t=55897 Couple more ideas] by [[Lyudmil Tsvetkov]], [[CCC]], April 05, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=56191 Lever evaluation] by [[Lyudmil Tsvetkov]], [[CCC]], May 01, 2015 » [[Pawn Levers (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56206 Chain, duo, connected] by [[Lyudmil Tsvetkov]], [[CCC]], May 02, 2015 » [[Pawn Chain]], [[Duo Trio Quart (Bitboards)]]
* [http://www.talkchess.com/forum/viewtopic.php?t=56213 Some more pawns] by [[Lyudmil Tsvetkov]], [[CCC]], May 03, 2015
* [http://www.talkchess.com/forum/viewtopic.php?t=56282 Assorted tweaks] by [[Lyudmil Tsvetkov]], [[CCC]], May 08, 2015
==2016 ...==
* [http://www.talkchess.com/forum/viewtopic.php?t=60372 Long-term project] by [[Lyudmil Tsvetkov]], [[CCC]], June 05, 2016
* [http://www.talkchess.com/forum/viewtopic.php?t=64776 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[CCC]], August 01, 2017
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=32234 The Secret of Chess] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Rybka Forum]], August 02, 2017
* [http://www.hiarcs.net/forums/viewtopic.php?t=8613 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Hiarcs Forum]], October 08, 2017
* [http://rybkaforum.net/cgi-bin/rybkaforum/topic_show.pl?tid=32312 Human versus Machine] by [[Lyudmil Tsvetkov]], [[Computer Chess Forums|Rybka Forum]], October 08, 2017
=External Links=
* [http://ratings.fide.com/card.phtml?event=2905850 Tzvetkov, Ljudmil FIDE Chess Profile]
=References=
<references />
'''[[People|Up one level]]'''
[[Category:Chess Player|Tsvetkov]]
