Shredder (software)

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Shredder
Original author(s)Stefan Meyer-Kahlen
Initial release1993; 29 years ago (1993)
Stable release
13 / November 22, 2016; 5 years ago (2016-11-22) [1]
Typechess engine
Licenseproprietary
Websitewww.shredderchess.com

Shredder is a commercial chess engine and graphical user interface (GUI) developed in Germany by Stefan Meyer-Kahlen in 1993. Shredder won the World Microcomputer Chess Championship in 1996 and 2000, the World Computer Chess Championship in 1999 and 2003, the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and 2007, and the World Chess Software Championship in 2010.

One of the features of the Shredder engine is that it can be set to play at different Elo rating levels from beginner to master level. The Shredder GUI will estimate your Elo rating based on your games, and adjust its strength in future games to give you a chance of winning.

The Shredder web site also sells Chess Tutor, a teaching program based on the Steps Method course of Dutch psychologist Rob Brunia and IM Cor van Wijgerden.[2]

The Shredder engine version 10.0 was released in June 2006. Version 11.0 was released in October 2007. Version 12 was released in January 2010. The "Deep" version takes advantage of multiple CPUs or multiple core CPUs. Version 13 was released in 30 October 2016. Version 13 is about 300 Elo better than Version 12.

This article is part of the series on
Chess programming
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Board representations
Evaluation functions
Graph and tree search algorithms
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Awards[]

Shredder has won a number of computer chess tournaments since its inception:

Year Location Title
1996 Jakarta Micro Computer World Champion
1999 Paderborn Micro Computer World Champion
Computer Chess World Champion
2000 London Micro Computer World Champion
2001 Maastricht Micro Computer World Champion Single CPU
2002 Blitz World Champion
2003 Graz Computer Chess World Champion
Blitz World Champion
2004 Tel Aviv Blitz World Champion
2005 Reykjavík Blitz World Champion
2006 Mainz Chess960 World Champion
2007 Amsterdam Blitz World Champion
2010 Kanazawa Chess Software World Champion
2013 Yokohama Blitz World Champion
2015 Leiden Chess Software World Champion

Platforms[]

Shredder is one of the few commercial chess programs which is available not only for Windows and Mac OS, but also for Linux. Shredder is also available on the iPhone, the iPad[3] and Android.[4]

Sample game 01[]

The following game was played between Shredder (playing as Black) and at the 2003 World Computer Chess Championship. Shredder sacrifices a piece in exchange for a strong initiative in a position too complex for the computer to calculate to the end.

  1. e4 c5
  2. Nc3 e6
  3. d4 cxd4
  4. Qxd4 Nc6
  5. Qa4 Bc5
  6. Nb5 Nf6
  7. e5 Nxe5
  8. Bf4 Nfg4
  9. Nh3 f6
  10. Be2 h5
  11. Bxg4 hxg4
  12. Bxe5 fxe5
  13. Qxg4 O-O
  14. O-O-O d5
  15. Rhf1 Bd7
  16. Nc3 Rc8
  17. Kb1 Bd4
  18. Ne2 Bxb2
  19. Kxb2 Qb6+
  20. Kc1 Qa6
  21. Rd2 Rc4
  22. Qg6 Be8
  23. Qd3 Qxa2
  24. Kd1 Qa1+
  25. Nc1 Ba4
  26. Qg6 Rf6
  27. Qg5 Rf5
  28. Qe3 Qb2
  29. Qe2 e4
  30. f4 e3
  31. Qxe3 Bxc2+
  32. Ke2 Re4 0-1

Sample game 02[]

The following is a complete Portable Game Notation of a game between Texel 1.07 [5] (White) and Deep Shredder 13 [6] (Black) from CCRL. The Opening is the complicated Bogo-Indian [7] The Bogo-Indian Defence is classified as E11 by the Encyclopaedia of Chess Openings (ECO). Deep Shredder 13 convincingly wins a Rook and Pawn endgame after a long backbreaking game. [8]

[Event "CCRL 40/15"] [Site "CCRL"] [Date "2017.12.20"] [Round "79.3"] [White "Texel 1.07 64-bit 4CPU"] [Black "Deep Shredder 13 64-bit 4CPU"] [Result "0-1"] [ECO "E11"] [WhiteElo "3140"] [BlackElo "3278"]

1. d4 e6 2. c4 Bb4+ 3. Bd2 Bxd2+ 4. Qxd2 Nf6 5. Nc3 O-O 6. Nf3 d5 7. e3 b6 8. cxd5 exd5 9. b4 Qd6 10. Qb2 c6 11. Bd3 Nbd7 12. O-O a5 13. b5 c5 14. Qa3 Qc7 15. dxc5 Qxc5 16. Qxc5 Nxc5 17. Rfd1 g6 18. Bf1 Be6 19. Nd4 Ra7 20. Be2 Rc8 21. Rac1 Kg7 22. Bf3 Rb7 23. h4 Rbc7 24. Nc6 Rd7 25. Rc2 Nce4 26. Na4 Rb7 27. Rdc1 Bd7 28. Be2 Nd6 29. g3 Bf5 30. Rd2 Bd7 31. Rd4 Be6 32. Kg2 h5 33. Rdd1 Nd7 34. a3 Rbc7 35. Rc3 Ne4 36. Rc2 Nd6 37. Rcd2 Re8 38. Rd4 Nf5 39. R4d3 Nd6 40. Rd4 Nf5 41. R4d2 Nd6 42. Rc2 Rec8 43. Rb2 Rh8 44. Rc1 Rhc8 45. Rd1 Rh8 46. Kh2 Re8 47. Rc2 Rec8 48. Rcc1 Nb7 49. Kg2 Nd6 50. Rc2 Re8 51. Nc3 Nf6 52. Kg1 Rec8 53. Na4 Nd7 54. Rb2 Rh8 55. Rbb1 Rf8 56. Rd4 Nf5 57. Rdd1 Nd6 58. Rbc1 Rfc8 59. Kg2 Kh7 60. Ra1 Re8 61. Rac1 Rec8 62. Nc3 Nf6 63. Rd4 Kg7 64. Na4 Nd7 65. Rcd1 Re8 66. Rc1 Rec8 67. Re1 Re8 68. Rb1 Bf5 69. Rc1 Be6 70. Nc3 Nf6 71. Kg1 Rec8 72. Na4 Nd7 73. Ra1 Re8 74. Rdd1 Rh8 75. Kh2 Re8 76. Kg1 Rh8 77. Nc3 Nf6 78. Rac1 Rhc8 79. Bf1 Kf8 80. a4 Nb7 81. Ne2 Bd7 82. Ned4 Nc5 83. Ra1 Ne6 84. Nxe6+ fxe6 85. Ne5 Be8 86. Kg2 Kg7 87. Kg1 Ne4 88. Bd3 Kf6 89. Nf3 Nc3 90. Rd2 e5 91. Ng5 e4 92. Bf1 Bd7 93. Kg2 Bg4 94. Kg1 Ke5 95. Kh2 Rb8 96. Rd4 Rc5 97. Kg2 Bf5 98. Nf7+ Kf6 99. Ng5 Rbc8 100. Rd2 Ke7 101. Kg1 Rf8 102. Kg2 Rb8 103. Rd4 Bg4 104. Kg1 Rf8 105. Rd2 Rfc8 106. Kg2 Rd8 107. Kh2 Rcc8 108. Kg1 Rg8 109. Kh2 Rc7 110. Kg2 Bf5 111. Rc2 Rc5 112. Rd2 Bg4 113. Kh1 Rh8 114. Kg2 Rc7 115. Kg1 Bf5 116. Rc2 Rc5 117. Rd2 Rd8 118. Rd4 Rcc8 119. Kh1 Rc7 120. Kh2 Bg4 121. Rd2 Rc5 122. Kh1 Bf5 123. Kg2 Kd7 124. Nf7 Re8 125. Ng5 Ke7 126. Kg1 Bg4 127. Kg2 Kd6 128. Kg1 Rc7 129. Kh2 Ke5 130. Kg2 Rd7 131. Rd4 Rc8 132. Kg1 Rcc7 133. Kg2 Be2 134. Ra3 Bd1 135. Ra1 Bg4 136. Nh3 Bxh3+ 137. Kxh3 Rf7 138. Kg2 Rf3 139. Rd2 Rf6 140. Kh1 Rd6 141. Rd4 Kf5 142. Kg2 Ke6 143. Rd2 Ke5 144. Rd4 Rd8 145. Kh2 Rf7 146. Rd2 Rc8 147. Kh1 Rcc7 148. Kh2 Rfd7 149. Rd4 Rd8 150. Kg2 Rg8 151. Kh3 g5 152. hxg5 Rxg5 153. Rd2 Rf5 154. Kg2 Rf8 155. Rc2 Rc5 156. Rd2 Rd8 157. Rd4 Rc7 158. Rc1 Rf8 159. Rd2 Rfc8 160. Rd4 Rh7 161. Kh3 Rc5 162. Ra1 Rd7 163. Kh4 Rcc7 164. Kh3 Rf7 165. Rd2 h4 166. gxh4 Rf3+ 167. Kg2 Rg7+ 168. Kh2 Rg4 169. Rc2 d4 170. exd4+ Kxd4 171. Rac1 Rxh4+ 172. Kg1 Rh5 173. Rd2+ Ke5 174. Bg2 Rd3 175. Rxd3 Ne2+ 176. Kf1 exd3 177. Rc4 Rg5 178. Re4+ Kf6 179. Re3 Rxg2 180. Rxd3 Nf4 181. Rd6+ Ke5 182. Rxb6 Rh2 183. Kg1 Rh8 184. Rc6 Ne2+ 185. Kg2 Nd4 186. f4+ Kxf4 187. Rc5 Nb3 188. Rc3 Nd2 189. Rg3 Ke4 190. Kf2 Nc4 191. Rb3 Kd4 192. Rb1 Nb6 193. Ra1 Kc5 194. Ke3 Rh4 195. Kd3 Rxa4 196. Rg1 Rd4+ 197. Ke2 a4 198. Rh1 Kxb5 199. Ke3 Kc5 200. Kf3 a3 201. Rc1+ 0-1

Graphical front-ends[]

See also[]

References[]

  1. ^ "Shredder News". Retrieved 2 November 2020.
  2. ^ "Learn chess with the Steps Method".
  3. ^ "Shredder Chess for iPhone, iPod touch, and iPad on the iTunes App Store". Apple.com. Retrieved 5 April 2011.
  4. ^ "Shredder Computer Chess Download - Shredder for Android". ShredderChess.com. Retrieved 5 April 2011.
  5. ^ https://www.chessprogramming.org/Texel
  6. ^ https://www.chessprogramming.org/Shredder
  7. ^ https://www.chessgames.com/perl/chessopening?eco=e11
  8. ^ https://ccrl.chessdom.com/ccrl/4040/games.html#by_engine

External links[]


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