 This chess program from the young talent Gian-Carlo Pascutto. Deep Sjeng is a much improved version of Sjeng that additionally supports multiprocessors. It can take advantage of up to eight processors, of course it also works fine on a single processor.
The program contains many personalities that offer different styles of play and handicap modes that make human errors.
Deep Sjeng comes with a large hand tuned opening book and the full ChessPartner 5.3 interface. The Deep Sjeng chess engine is UCI and WinBoard compatible, this makes it possible not only to use the engine with the ChessPartner interface but also with other interfaces that are UCI or Winboard compatible.
Features:
• Hand tuned opening book by Jeroen Noomen.
• Supports up to 8 processors.
• Supports hyperthreading.
• Personality editor.
• Many predefined personalities included.
• Chess engine is UCI and Winboard compatible.
• Multivariation mode.
• Nalimov Endgame Table bases, also works with 6 man endgames.
• ChessPartner 5.3 interface.
• A linux and MacOSX version of the engine is included on the CD-ROM.
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Review by Chris Taylor, read it here....
Deep Sjeng is a program with personality, the pictures below shows the personalities in action (click for full size)
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We have included several personalities:
Monkey: We've taught a monkey how to play chess! Well, lets say he knows the rules ;-) The ideal opponent for absolute beginners or for those who just have an urgent need for a complete and swift victory. Estimated < 800 ELO
Patzer: A beginning player that more or less understands the basics. His tactical vision is still horrible though, and much positional finesse is not something you should expect either. But you'd better not leave too much pieces hanging... Estimated 800-1000 ELO
Beginner: His tactical vision has been developed a bit further, and some positional understanding is beginning to form. Still makes a lot of mistakes though. Beatable, but keep concentrated, or you'll need the takeback function! Estimated 1000-1200 ELO
Amateur: Has a fair tactical vision and understands the core positional concepts reasonably well. No too shoddy to try the occasional combination. Blunders are still common, but usually not that obvious. Estimated 1200-1600 ELO
Semi Pro: An expert player that will give you a run for the money. Not a pansy in any way, but lacking the last finesse to be a top player. Doesn't make mistakes often, but they're still there, and it's up to you to spot them and take advantage of them! Estimated 1600-2000 ELO
Pro: A top player in every way. Good positional understanding, good tactical abilities, and little errors. But, being only human, there's still the occasional slip up every now and then. Estimated 2000-2400 ELO
GM Personalities (Estimated 2400-2700+ ELO)
Kasparov: Does he need an introduction? There was a lot of effort involved in cramming him into a shiny little disk, but you'll instantly recognize his sharp, edge-of-your seat playing style. A tactically very strong player that likes risks and goes for the kill every time.
Kramnik: A more quiet player that slowly grinds himself to a win using accurate positional play. But don't be fooled - given the chance, he'll gladly play into a complicated mess and out tactic you as well!
Tal: A crazy, sacrificial player that is always on the attack. Hates to be on the defensive and *loves* to give up material for an attack or the initiative.
Tarrasch: A dogmatic player from the days when chess was still developing. Keeps the basic positional themes close to it's hearth, but is occasionally a bit less flexible than contemporary players.
Diepeveen: A personality contributed by FM Vincent Diepeveen, which is reported to have a highly developed positional understanding.
Beancounter: This one might remind you of the chess programs you had BEFORE you discovered Deep Sjeng. Materialistic and tactically using raw power, only for the nostalgic people among us.
Gambit Kitten: The 'little brother' of Gambit Tiger. Maybe it's not as mature as it's big brother yet, but the family traits are obvious. Very strong, and goes for the throat each time. Watch those claws!
Default: The best balance of all of the above we could find in a lot of testing, this is the default and strongest setting. A good positional player with a lot of knowledge, a world-class tactician and being dynamic enough to handle any kind of position it encounters, we just know you are going to be permanently addicted after your first game.
And you know what's the best? With Deep Sjeng's built-in personality editor you can create your own personalities.
Want to make a silicon copy of your favorite GM? No problem!
Want to prepare against that sturdy defender in your chess club that likes knight play? No problem! Want an opponent tailored exactly to your own playing level ? Again, Deep Sjeng is just what you want.
Multiprocessor support
Deep Sjeng can make use of up to 8 processors, this can give it a speed advantage over other programs which don't have this capability. This is also an advantage with the latest generation of processors from Intel which supports hyperthreading, only multiprocessor capable programs can take advantage of this new feature. On a dual CPU up to 85% speed increase can be expected compared to a single CPU. Of course it also works fine on a single processor.
UCI and Winboard compatible
The Deep Sjeng chess engine is UCI and Winboard compatible. This makes it possible not only to use the engine with the ChessPartner interface but also in other interfaces supporting the UCI or Winboard protocol.
Multivariation mode
In this mode the chess engine not only looks for the best move, but for the best 'n' moves. This feature is handy for game analysis.
Nalimov Endgame Table bases
Table bases (abbreviated to TB) are giant sets of databases stored with perfect end-game knowledge and this knowledge will be used by Deep Sjeng for its internal calculations. It means that the chess program understands some very basic end-games without the need of calculating nor programmed chess knowledge because the information is simply retrieved from the TB (table base). Al the 3 and 4 man and some 5 man table bases are included on the CD-ROM version. Other table bases can be downloaded from the Internet. As one of the very few programs, Deep Sjeng supports the use of 6 man table bases.
ChessPartner 5.3 interface
The latest ChessPartner interface is included. General information about ChessPartner can be found here...
Linux and MacOSX version of engine
As a bonus, the CD-ROM contains a linux and MacOSX version of the Deep Sjeng engine. This version can be used with xboard. Note that these versions are free extra's and unsupported.
Some results
Anti computer expert Alterman beaten by Sjeng.
GM Alterman,Boris - Sjeng
WCCC Exhibition Maastricht, 09.07.2002
1.d4 Nf6 2.Nf3 e6 3.Bf4 b6 4.h3 Be7 5.e3 0-0 6.Bd3 Nc6 7.c3 Nd5 8.Bh2 f5
9.Nbd2 Bb7 10.a3 Bd6 11.Qe2 Bxh2 12.Rxh2 Nce7 13.g4 c5 14.0-0-0 Rc8 15.Kb1
2rq1rk1/pb1pn1pp/1p2p3/2pn1p2/3P2P1/P1PBPN1P/1P1NQP1R/1K1R4 b - - 0 15
GM Alterman has been busy setting up a typical anti computer position and is getting ready to storm the kingside. He did not, however, expect the brilliancy Sjeng was about to uncork:
15... Nxc3+!!
White's weakened kingside combined with black's pressure along the c file more than make up for the material disadvantage. Deep Sjeng is the only program we know of that can find this move instantly.
16.bxc3 Nd5 17.Rc1 cxd4 18.cxd4 Nc3+ 19.Rxc3 Rxc3 20.Kb2 Qc7 21.Rh1 Bd5
22.Ra1 Rc8 23.Ne1 and mate in a few moves 0-1
The game below is a correspondence game between Claude Bourgoin and Deep Sjeng it not easy to know who is the computer
1.c4 e5 2.Nf3 e4 3.Nd4 Nc6 4.Nxc6 dxc6 5.g3 Bc5 6.Bg2 Nf6 7.O-O O-O 8.e3 Qd3 9.Qb3 Qxb3 10.axb3 Bb4 11.Na3 Rd8 12.Nc2 Be7 13.f3 Nd7 14.fxe4 Nc5 15.Nd4 Nd3 16.Bf3 c5 17.Nf5 Bf6 18.e5 Nxe5 19.Be4 Nd3 20.Bxd3 Rxd3 21.Ra3 a5 22.g4 Kf8 23.Ng3 b6 24.Ne4 Be7 25.g5 Bb7
r4k2/1bp1bppp/1p6/p1p3P1/2P1N3/RP1rP3/1P1P3P/2B2RK1 w - - 0 26
By careful maneuvering black has blocked two white pieces. Black now has an easy win.
26.Nf2 Rd6 27.h4 h6 28.Nh3 hxg5 29.Nxg5 Bxg5 30.hxg5 Rg6 31.Rf4 Rxg5+ 32.Kf1 Ke7 33.Rh4 Rf5+ 34.Ke1 g5 35.Rh5 Bf3 36.Rh6 Rd8 37.Rh3 g4 38.Rg3 Rh5 0-1
Did you guess it ? Deep Sjeng was playing black.
Full game details:
[Event "CP-2002-P-00005"]
[Site "IECG"]
[Date "2002.10.01"]
[White "Bourgoin, Claude"]
[Black "Pascutto, Gian-Carlo/Deep Sjeng"]
[Result "0-1"]
More games here....
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