Knowledge (XXG)

Junior (chess)

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According to Bushinsky, one of the innovations of Junior over other chess programs is the way it counts moves. Junior counts orthodox, ordinary moves as two moves, while it counts interesting moves as only one move, or even less. In this way interesting variations are analyzed more meticulously than
570:, November, 11 2013: Don Dailey (Komodo) (Season 2 Participant) ″Junior is not super strong, but it's super dangerous—if that makes any sense. It has some evaluation that can sting if it's in the right situation—that no other program has.″ 481:
Another approach its designers claim to use is 'opponent modeling'; Junior might play moves that are not objectively the strongest but that exploit the weaknesses of the opponent. According to
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4–2. These programs opted out of the World Computer Chess Championship, which was held at the same time and won by
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less promising lines. This seems to be a generalization of search extensions already used by other programs.
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in 2002, 2004, 2006, 2009, 2011 and 2013; both organized by the International Computer Games Association.
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In June 2007, Deep Junior won the "ultimate computer chess challenge" organized by FIDE, defeating
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Machines Who Think: A Personal Inquiry Into the History and Prospects of Artificial Intelligence
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assisted, in particular with the opening book. Junior can take advantage of
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programmers Amir Ban and Shai Bushinsky. Grandmaster
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Deep Junior's 2006 Computer Chess Championship games
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In 2003 Deep Junior played a six-game match against
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A K Peters, Ltd. p. 482. 497:, which resulted in a 3–3 tie. 132:Handcrafted evaluation functions 68: 1025:Gökyay Association Chess Museum 1: 2145:Computer chess championships 1927:Bishop and knight checkmate 543:Maccorduck, Pamela (2004). 147:Stochastic gradient descent 2425: 2090:Other world championships 197:Principal variation search 2371: 1937:Opposite-coloured bishops 522:in 1997 and 2001 and the 2064:World Chess Championship 1030:World Chess Hall of Fame 2358:Simultaneous exhibition 2268:Chess newspaper columns 1957:Rook and bishop vs rook 1947:Queen and pawn vs queen 515:with a score of 10/11. 207:Monte Carlo tree search 34:program written by the 1813:Richter–Veresov Attack 1801:Queen's Indian Defence 317:Dragon by Komodo Chess 142:Reinforcement learning 2074:Candidates Tournament 1962:Rook and pawn vs rook 1932:King and pawn vs king 1883:List of chess gambits 1786:King's Indian Defence 1464:Isolated Queen's Pawn 988:List of chess players 930:Top player comparison 729:Internet chess server 162:Unsupervised learning 80:Board representations 1791:Nimzo-Indian Defence 1687:Scandinavian Defense 1648:Semi-Italian Opening 1553:King's Indian Attack 1442:first-move advantage 1095:Threefold repetition 1020:Bobby Fischer Center 905:Charlemagne chessmen 899:Göttingen manuscript 704:Correspondence chess 585:www.thechessdrum.net 112:Deep neural networks 105:Evaluation functions 2019:Two knights endgame 1771:Bogo-Indian Defence 1658:Two Knights Defense 1598:Nimzowitsch Defence 1288:Artificial castling 925:Soviet chess school 800:Dubrovnik chess set 152:Supervised learning 137:Piece-square tables 44:multiple processors 2249:endgame literature 1796:Old Indian Defense 1706:Accelerated Dragon 1578:Alekhine's Defence 1310:Checkmate patterns 1179:symbols in Unicode 1174:annotation symbols 937:Geography of chess 805:Staunton chess set 192:Alpha-beta pruning 46:, taking the name 2396: 2395: 2273:Chess periodicals 2202:Chess in the arts 2134:Chess composition 1972:Philidor position 1913: 1912: 1855:Trompowsky Attack 1838:Semi-Slav Defence 1728:Queen's Pawn Game 1608:Four Knights Game 1583:Caro–Kann Defence 1548:Zukertort Opening 1335:Discovered attack 1055:Cheating in chess 892:Versus de scachis 475: 474: 202:Quiescence search 181:search algorithms 62:Chess programming 16:(Redirected from 2416: 2383:Chess portal 2381: 2380: 2324:Leela Chess Zero 2255:Oxford Companion 2207:early literature 2197:Chess aesthetics 1942:Pawnless endgame 1893:Bongcloud Attack 1871:List of openings 1843:Chigorin Defense 1781:GrĂĽnfeld Defence 1692:Sicilian Defence 1638:Ponziani Opening 1633:Philidor Defence 1628:Petrov's Defence 1570:King's Pawn Game 1543:Larsen's Opening 1506: 867: 637: 630: 623: 614: 595: 594: 592: 591: 577: 571: 565: 559: 558: 540: 502:Teimour Radjabov 467: 460: 453: 372:Leela Chess Zero 72: 53: 21: 2424: 2423: 2419: 2418: 2417: 2415: 2414: 2413: 2399: 2398: 2397: 2392: 2375: 2367: 2277: 2263:Chess libraries 2180: 2084:FIDE Grand Prix 2079:Chess World Cup 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Index

Deep Junior
computer chess
Israeli
Boris Alterman
multiple processors
Chess programming

Board representations
0x88
Bitboards
Evaluation functions
Deep neural networks
Transformers
Attention
Efficiently updatable neural networks
Handcrafted evaluation functions
Piece-square tables
Reinforcement learning
Stochastic gradient descent
Supervised learning
Texel tuning
Unsupervised learning
Graph
tree
Minimax
Alpha-beta pruning
Principal variation search
Quiescence search
Monte Carlo tree search
Chess computers

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