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Deep Sjeng (Computer)
Number of games in database: 69
Years covered: 2004 to 2013
Overall record: +33 -15 =21 (63.0%)*
   * Overall winning percentage = (wins+draws/2) / total games.

Repertoire Explorer
Most played openings
C42 Petrov Defense (4 games)
E15 Queen's Indian (3 games)
B62 Sicilian, Richter-Rauzer (2 games)
C45 Scotch Game (2 games)
B40 Sicilian (2 games)
B81 Sicilian, Scheveningen, Keres Attack (2 games)
D18 Queen's Gambit Declined Slav, Dutch (2 games)
B42 Sicilian, Kan (2 games)
D45 Queen's Gambit Declined Semi-Slav (2 games)
B90 Sicilian, Najdorf (2 games)

   🏆 nTCEC - Season 2 - Stage 1
   MinkoChess vs Deep Sjeng (Sep-03-13) 0-1

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[what is this?]

Its single processor version is Sjeng (Computer). Its operator is Tim Klaustermeyer, its authors are Gian Carlo Pascutto and Adrien Regimbald and Erdogan Gunes assists with its book development.

Last updated: 2018-11-28 07:40:53

 page 1 of 3; games 1-25 of 69  PGN Download
Game  ResultMoves YearEvent/LocaleOpening
1. Jonny vs Deep Sjeng  1-0432004World Computer Chess ChampionshipE15 Queen's Indian
2. Deep Sjeng vs IsiChess 0-1422004World Computer Chess ChampionshipC95 Ruy Lopez, Closed, Breyer
3. Fritz vs Deep Sjeng ½-½1622004World Computer Chess ChampionshipA07 King's Indian Attack
4. Deep Sjeng vs Crafty  ½-½472004World Computer Chess ChampionshipC67 Ruy Lopez
5. PARSOS vs Deep Sjeng  ½-½412004World Computer Chess ChampionshipD87 Grunfeld, Exchange
6. Deep Sjeng vs Woodpusher  1-0482004World Computer Chess ChampionshipC70 Ruy Lopez
7. Deep Sjeng vs Movei  1-0612004World Computer Chess ChampionshipB07 Pirc
8. Deep Sjeng vs Falcon  1-0532004World Computer Chess ChampionshipB96 Sicilian, Najdorf
9. Deep Junior vs Deep Sjeng 1-0442004World Computer Chess ChampionshipC97 Ruy Lopez, Closed, Chigorin
10. Deep Sjeng vs Shredder 0-1302004World Computer Chess ChampionshipB97 Sicilian, Najdorf
11. FIBChess vs Deep Sjeng 0-1242004World Computer Chess ChampionshipA00 Uncommon Opening
12. Deep Sjeng vs Zappa  0-1562005WCCCE12 Queen's Indian
13. Deep Sjeng vs Shredder  ½-½502005WCCCD27 Queen's Gambit Accepted, Classical
14. Deep Sjeng vs Fruit 0-1732005WCCCB40 Sicilian
15. Shredder vs Deep Sjeng 0-18920066th International CSVN TournamentB81 Sicilian, Scheveningen, Keres Attack
16. Deep Sjeng vs The King 1-02920066th International CSVN TournamentB62 Sicilian, Richter-Rauzer
17. Neurosis vs Deep Sjeng  0-14220066th International CSVN TournamentB40 Sicilian
18. Rybka vs Deep Sjeng 1-05720066th International CSVN TournamentB80 Sicilian, Scheveningen
19. Deep Sjeng vs Ant  1-07320066th International CSVN TournamentE19 Queen's Indian, Old Main line, 9.Qxc3
20. Deep Sjeng vs Deep Gandalf  ½-½3520066th International CSVN TournamentC42 Petrov Defense
21. Deep Sjeng vs Usurpator 1-04320066th International CSVN TournamentB54 Sicilian
22. XINIX vs Deep Sjeng  0-15620066th International CSVN TournamentB53 Sicilian
23. Hermann vs Deep Sjeng 0-112320066th International CSVN TournamentA34 English, Symmetrical
24. Ant vs Deep Sjeng  ½-½15200626th Dutch CCD18 Queen's Gambit Declined Slav, Dutch
25. Deep Sjeng vs The King 0-176200626th Dutch CCE76 King's Indian, Four Pawns Attack
 page 1 of 3; games 1-25 of 69  PGN Download
  REFINE SEARCH:   White wins (1-0) | Black wins (0-1) | Draws (1/2-1/2) | Deep Sjeng wins | Deep Sjeng loses  

Kibitzer's Corner
Premium Chessgames Member
  BishopBerkeley: Originally designed as "a bughouse & crazyhouse playing program" freeware engine Sjeng's commercial enhancement, Deep Sjeng, tied Shredder (Computer) for 3rd place in the 13th World Computer Chess Championship at Reykjavik University in Iceland (August 2005). The basic Sjeng Chess engine remains available for free download at the developer's website:


Commercial enhancement Deep Sjeng is available here:

From the developer's website:

1. What is Sjeng ?

Sjeng was an attempt to create a bughouse & crazyhouse playing program that can attain a level comparable to what the best human players are capable of. Newer versions of Sjeng also play standard, suicide, giveaway and losers chess.

Deep Sjeng is a professional chess playing & analysis program, complete with interface, opening book, chess server access, personalities, multiprocessor and UCI support, and more. Its playing strength is over 2750 ELO on fast hardware....


The latest WBEC Ridderkerk rating list gives Deep Sjeng a 2690 rating among UCI Chess engines, and the latest Swedish Rating List gives Deep Sjeng a 2671 rating among all computer Chess engines:

Deep Sjeng's impressive results at the World Computer Chess Championship may be seen here:

Indeed, Deep Sjeng only lost games to the stunning new World Computer Chess Champion Zappa (Computer) , and the wonderfully impressive 2nd place winner "Fruit" (the favorite of vegetarians worldwide). It drew its games with former World Computer Chess Champions Shredder (Computer) and Junior (Computer) (really Deep Junior (Computer) , I believe).

(: ♗ Bishop Berkeley ♗ :)

Aug-02-08  Swifty31: Deep Sjeng is back for some venegence. They have overhauled the old Sjeng. This new bad boy is being called Deep Sjeng 3. And from the tests I ran Im really starting to believe we will have upsets.
Feb-15-14  mrandersson: I know this engine is a bit old now but does any one else have problems with deep sjeng ct 2010 in fritz? I use fritz 6 9 and 12 and when i try and use analysis with sjeng it crashes on most pgn files.

Any one else have this problem?

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