Lyudmil+Tsvetkov

a Bulgarian former diplomat, chess player and computer chess expert and author. In 2010, Lyudmil Tsvetkov published a //Little Chess Evaluation Compendium// elaborating on quantitative evaluation features in chess, in 2012 an Addendum, both hosted by Thomas Mayer.
 * Home * People * Lyudmil Tsvetkov**
 * [[image:LTsvetkov_2013.JPG]] ||~ || **Lyudmil Tsvetkov**,

Not a chess programmer himself, Lyudmil contributed in CCC and kept developers and test departments busy in pointing out certain weaknesses of engines with the proposal of pattern and concrete weights concerning evaluation, often controversial discussed with [|non-orthogonality] as essence of his critics, as summarized by Louis Zulli. || toc =Photos=
 * Lyudmil Tsvetkov ||~ ||^ ||
 * [[image:P1000236.JPG]] ||
 * Receiving the cup at an event of the chess section at the [|Bulgarian Ministry of Foreign Affairs], early 2007 ||

=Selected Publications=

2010 ...
> [|Addendum June 2012 pdf] > > > [|Addendum 4 November 2012 pdf] > >
 * Lyudmil Tsvetkov (**2010**). //Little Chess Evaluation Compendium//. [|2010 pdf]
 * Lyudmil Tsvetkov (**2012**). //An Addendum to a Little Chess Evaluation Compendium//.
 * Lyudmil Tsvetkov (**2012**). //Little Chess Evaluation Compendium//. [|July 2012 pdf], [[file:LittleChessEvaluationCompendium.pdf|December 03, 2012 pdf]]

2015 ...

 * Lyudmil Tsvetkov (**2017**). //[|The Secret of Chess]//. [|amazon]
 * Lyudmil Tsvetkov (**2017**). //Pawns//. [|amazon]
 * Lyudmil Tsvetkov (**2017**). //Human Versus Machine: How To Beat Stockfish and Komodo Part I//. [|amazon]
 * Lyudmil Tsvetkov (**2017**). //Human Versus Machine: How To Beat Stockfish and Komodo Part II//. [|amazon]
 * Lyudmil Tsvetkov (**2018**). //The Secret of Chess: Example Games//. [|amazon]

=Forum Posts=

2012

 * [|New Installment of my Project on Chess Evaluation] by Lyudmil Tsvetkov, CCC, June 16, 2012
 * [|The same as 10 years ago] by Lyudmil Tsvetkov, CCC, October 01, 2012
 * [|Small update of the Little Compendium] by Lyudmil Tsvetkov, CCC, November 01, 2012
 * [|Post-final release of the Little Compendium] by Lyudmil Tsvetkov, CCC, November 27, 2012

2013

 * [|How do you assess this position?] by Lyudmil Tsvetkov, CCC, January 14, 2013
 * [|The two bishops are letting me down] by Lyudmil Tsvetkov, CCC, January 18, 2013
 * [|The space advantage that was non-existent] by Lyudmil Tsvetkov, CCC, January 18, 2013
 * [|Blockade] by Lyudmil Tsvetkov, CCC, January 18, 2013
 * [|Opposing the unopposed pawn] by Lyudmil Tsvetkov, CCC, January 18, 2013
 * [|The eternal knight] by Lyudmil Tsvetkov, CCC, January 18, 2013 » Outposts
 * [|On the verge of losing] by Lyudmil Tsvetkov, CCC, January 18, 2013
 * [|The backward passer] by Lyudmil Tsvetkov, CCC, January 21, 2013
 * [|First move advantage] by Lyudmil Tsvetkov, CCC, June 19, 2013 » Opening, Tempo
 * [|Safe spatial mobility] by Lyudmil Tsvetkov, CCC, August 04, 2013 » Mobility
 * [|Castling long] by Lyudmil Tsvetkov, CCC, August 05, 2013 » Castling
 * [|The worst pawn weakness] by Lyudmil Tsvetkov, CCC, September 13, 2013
 * [|Crazy theories] by Lyudmil Tsvetkov, CCC, September 15, 2013
 * [|A balanced approach to imbalances] by Lyudmil Tsvetkov, CCC, October 23, 2013 » Material
 * [|Elephantiasis: reality or myth?] by Lyudmil Tsvetkov, CCC, October 28, 2013
 * [|2 Moves Engine Book] by Lyudmil Tsvetkov, CCC, December 07, 2013 » Opening Book
 * [|Lonely queen] by Lyudmil Tsvetkov, CCC, December 15, 2013 » Material
 * [|My Stockfish wish for 2014] by Lyudmil Tsvetkov, CCC, December 24, 2013 » Stockfish
 * [|You are KIDding me] by Lyudmil Tsvetkov, CCC, December 28, 2013

2014

 * [|Crude, cruder, crudest] by Lyudmil Tsvetkov, CCC, January 05, 2014 » Stockfish
 * [|The Fried Fish Attack] by Lyudmil Tsvetkov, CCC, January 10, 2014
 * [|5 underestimated evaluation rules] by Lyudmil Tsvetkov, CCC, January 23, 2014
 * [|Huge simplification] by Lyudmil Tsvetkov, CCC, April 25, 2014 » Stockfish, Pawn chain
 * [|What is a backward pawn?] by Lyudmil Tsvetkov, CCC, May 12, 2014 » Backward Pawn, Backward Pawns (Bitboards)
 * [|The phalanx concept] by Lyudmil Tsvetkov, CCC, May 21, 2014 » Duo Trio Quart
 * [|The Superfinal] by Lyudmil Tsvetkov, CCC, May 21, 2014 » TCEC Season 6 - Superfinal, Komodo vs. Stockfish
 * [|Redundant knight] by Lyudmil Tsvetkov, CCC, June 20, 2014
 * [|Scaling eval with material on the board] by Lyudmil Tsvetkov, CCC, June 25, 2014
 * [|King shelter x-ray attacks] by Lyudmil Tsvetkov, CCC, June 27, 2014 » King Safety, X-ray Attacks (Bitboards)
 * [|Obligatory scaling] by Lyudmil Tsvetkov, CCC, June 27, 2014 » Rook Endgame
 * [|Heavy piece shelter] by Lyudmil Tsvetkov, CCC, June 27, 2014 » King Safety

2015

 * [|Binders] by Lyudmil Tsvetkov, CCC, February 04, 2015 » Pawn Structure
 * [|LCP] by Lyudmil Tsvetkov, CCC, February 09, 2015 » Pawn chain
 * [|En passant bonus] by Lyudmil Tsvetkov, CCC, February 10, 2015 » En passant
 * [|Pawn checks and center levers] by Lyudmil Tsvetkov, CCC, February 11, 2015
 * [|So same, so different] by Lyudmil Tsvetkov, CCC, February 12, 2015 » Rook on Open File
 * [|Kind of backward] by Lyudmil Tsvetkov, CCC, February 13, 2015
 * [|Empty!] by Lyudmil Tsvetkov, CCC, February 14, 2015 » Square Control
 * [|Double pawn push] by Lyudmil Tsvetkov, CCC, February 14, 2015
 * [|Kingside fianchetto] by Lyudmil Tsvetkov, CCC, February 18, 2015 » Fianchetto
 * [|Pawn defence] by Lyudmil Tsvetkov, CCC, February 18, 2015 » Connectivity
 * [|The strongest passer] by Lyudmil Tsvetkov, CCC, February 19, 2015
 * [|Longer chain pawn again] by Lyudmil Tsvetkov, CCC, February 25, 2015 » Pawn chain
 * [|Couple more ideas] by Lyudmil Tsvetkov, CCC, April 05, 2015
 * [|Lever evaluation] by Lyudmil Tsvetkov, CCC, May 01, 2015 » Pawn Levers (Bitboards)
 * [|Chain, duo, connected] by Lyudmil Tsvetkov, CCC, May 02, 2015 » Pawn chain, Duo Trio Quart (Bitboards)
 * [|Some more pawns] by Lyudmil Tsvetkov, CCC, May 03, 2015
 * [|Assorted tweaks] by Lyudmil Tsvetkov, CCC, May 08, 2015

2016 ...

 * [|Long-term project] by Lyudmil Tsvetkov, CCC, June 05, 2016
 * [|The Secret of Chess] by Lyudmil Tsvetkov, CCC, August 01, 2017
 * [|The Secret of Chess] by Lyudmil Tsvetkov, Rybka Forum, August 02, 2017
 * [|Human versus Machine] by Lyudmil Tsvetkov, Hiarcs Forum, October 08, 2017
 * [|Human versus Machine] by Lyudmil Tsvetkov, Rybka Forum, October 08, 2017
 * [|The Secret of Chess 2] by Lyudmil Tsvetkov, CCC, March 26, 2018

=References= =What links here?= include page="Lyudmil Tsvetkov" component="backlinks" limit="80"
 * Up one level**