WMCCC 1993

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The Twelfth World Microcomputer Chess Championship took place from October 31 to November 7, 1993, at Weinfurtner's Garden-Hotel, Munich Schwabing, Bavaria, Germany. The WMCCC 1993 was organized by the ICCA and editors of the German computer chess magazine Computerschach und Spiele, which was also primary sponsor of the event.

Three dedicated machines played in the Manufacturers Group, each playing eight with each of the other two. The Software Group was well attended with 28 programs contesting a nine round Swiss tournament.

=Software Group=

Final Standing
12th World Microcomputer Chess Championship, Oct. 1993, München GER
 * CC Country Codes
 * SOS: Sum of Opponent Scores
 * SoDOS: Sum of Defeated Opponent Scores

Participants
=Manufacturers Group=
 * CC Country Codes

Final Standing

 * CC Country Codes

Participants

 * CC Country Codes

=Playoff= The playoff between the winner of the Manufacturers Group, Mephisto Genius 2 the so called Mephisto Wundermaschine (Mephisto Wonder Machine), running Genius on an internal 80486 PC, and the winner of the Software Group, HIARCS, for the title of the World Micro Absolute Champion was won by Mephisto Genius with 1½ - ½.

=Titles=
 * World Chess Computer Manufacturers' Champion: Mephisto Genius 2
 * World Microcomputer Chess Software Champion: HIARCS
 * Absolute World Microcomputer Chess Champion: Mephisto Genius 2
 * Amateur World Champion: HIARCS

=Photos= Computerschach und Spiele team, Frederic Friedel, Jens Schmidt-Wilke, Dieter Steinwender

Chrilly Donninger, Reinhold Gellner and MChess operator Berthold Seifriz

Playoff Wundermaschine vs. HIARCS, Richard Lang, David Levy, Mark's father and Mark Uniacke

=Notable Games=

Nimzo's White-Black Bug
Round 3, Mephisto Gideon - Nimzo-Guernica [Event "WMCCC 1993"] [Site "Munich, Germany"] [Date "1993.11.01"] [Round "03"] [White "Mephisto Gideon"] [Black "Nimzo-Guernica"] [Result "0-1"]

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e6 7.Be2 Be7 8.O-O O-O 9.Be3 Qc7 10.Kh1 b5 11.Bf3 Bb7 12.e5 dxe5 13.fxe5 Nfd7 14.Bxb7 Qxb7 15.Qh5 b4 16.Nce2 g6 17.Qf3 Qxf3 18.Nxf3 Nc6 19.Bf4 Rfd8 20.Ned4 Nxd4 21.Nxd4 Rac8 22.Rad1 Nb6 23.b3 Bc5 24.Nf3 Rxd1 25.Rxd1 Nd5 26.Bh6 Be3 27.Bxe3 Nxe3 28.Rd3 Nxc2 29.Kg1 Na3 30.Rd4 a5 31.Rd7 Nb5 32.Ng5 Rc7 33.Rxc7 Nxc7 34.Ne4 Nd5 35.Kf2 Kf8 36.Nd6 Nc3 37.Ke3 h6 38.Kd4 Nxa2 39.Nc4 Ke8 40.Nxa5 Kd7 41.Nb7 Nc3 42.Kc5 Nd5 43.g3 h5 44.Nd6 Ke7 45.Nb5 f6 46.exf6+ Kxf6 47.Nd4 Ne3 48.Kxb4 Nf1 49.Ka5 e5 50.Ne2 Nxh2 51.b4 Nf1 52.b5 Nd2 53.Kb6 Ke6 54.Kc7 Nc4 55.Kc6 Na5+ 56.Kb6 Nb3 57.Kb7 Kd6 58.Nc3 Nc5+ 59.Ka7 Ne6 60.b6 Nd8 61.b7 Nxb7 62.Kxb7 Kc5 63.Ne2 Kd5 64.Ng1 e4 65.Kb6 e3 66.Kb5 Kd4 67.Kc6 Kd3 68.Nf3 e2 0-1 As reported by Chrilly Donninger, Nimzo happily sacrificed the knight with 61... Nxb7, winning the game due to a bug. A winning score was given, applying the Rule of the Square for its black passer. Instead, as intended, with White having no pieces to make the e-pawn unstoppable, the winning score was enabled by Black without pieces ! 3n4/KP6/3k2p1/4p2p/8/2N3P1/8/8 3n4/KP6/3k2p1/4p2p/8/2N3P1/8/8 b - - 0 61

Desperado
Round 8, The King - Nimzo-Guernica » Desperado [Event "WMCCC 1993"] [Site "Munich, Germany"] [Date "1993.11.06"] [Round "8"] [White "The King"] [Black "Nimzo Guernica"] [Result "1/2-1/2"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7 10. Bd3 b5 11. Kb1 b4 12. Nce2 Bb7 13. Rhe1 h6 14. Bxf6 Bxf6 15. Qe3 Qc5 16. Qg1 g5 17. Nb3 Qxg1 18. Rxg1 Bd8 19. Nd2 Nc5 20. Rgf1 O-O 21. Nd4 a5 22. fxg5 Bxg5 23. N4b3 Nxd3 24. cxd3 Rfc8 25. Nd4 d5 26. e5 a4 27. Nc2 b3 28. axb3 Ba6 29. Rf3 Bxd2 30. Rxd2 axb3 31. Na3 Bb5 32. d4 Ba4 33. Rf6 Kg7 34. Rd3 Rc7 35. Rg3+ Kh7 36. Rgf3 Kg7 37. Rf1 Rb8 38. R6f3 Rd8 39. h4 Rdc8 40. g4 Rb8 41. g5 hxg5 42. Rg3 Kh6 43. Rxg5 Be8 44. Rgg1 f5 45. exf6 Bg6+ 46. Ka1 Rb4 47. h5 Bf5 48. Rf3 Rf7 49. Rfg3 Rxf6 50. Rh1 Be4 51. Rhg1 Rf8 52. Rh3 Bf5 53. Rf3 Ra8 54. Rf2 Rxd4 55. Re2 Kxh5 56. Rh2+ Rh4 57. Rhg2 d4 58. Rg5+ Kh6 59. Rh5+ Kxh5 60. Rg5+ Kh6 1/2-1/2

Broken Interface
In the last round, Kasparov Sparc, operated by Günter Niggemann lost due to hardware problems and finally a broken interface cable and card in a better position from MChess operated by Thorsten Czub. See Mclane's post in rgcc for the whole story : [Event "WMCCC 1993"] [Site "Munich, Germany"] [Date "1993.11.07"] [Round "9"] [White "Kasparov Sparc"] [Black "MChess Pro X"] [Result "0-1"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 Nc6 6. Nf3 Ne4 7. Bd2 Nxd2 8. Nxd2 f5 9. e3 O-O 10. Be2 Bxc5 11. O-O-O b6 12. Nf3 Bb7 13. Rd2 Qe7 14. Rhd1 Rfd8 15. a3 Rac8 16. Qc2 Qe8 17. Kb1 Be7 18. e4 Na5 19. exf5 Bxf3 20. gxf3 Nxc4 21. Bxc4 Rxc4 22. Qb3 Rc6 23. Nb5 a5 24. Na7 a4 25. Qxa4 Rc7 26. Nb5 Rc5 27. fxe6 Qg6+ 28. Ka1 Qxe6 29. Nc3 d6 30. Nd5 Bg5 31. f4 b5 32. Qd4 Bh6 0-1

=Tournament Directors=
 * Jaap van den Herik
 * David Levy

=Cartoon= Ossi Weiner, Frederic Friedel - David Levy, Mark Uniacke, Richard Lang, Manfred Hegener Alexey Manjakhin, Karl-Heinz Milaster, Tony Marsland, Mark Lefler, Dieter Steinwender (Floppy) Bart Weststrate, Ed Schröder, Johan de Koning, Frans Morsch

=Publications=
 * Jan Louwman (1993). The 12th World Microcomputer Chess Championship. ICCA Journal, Vol. 16, No. 4
 * Frederic Friedel, Dieter Steinwender (1993). Results and Selected Games of the 12th World Microcomputer Chess Championship. ICCA Journal, Vol. 16, No. 4
 * Kurt Utzinger (1993). Ein Schweizer in München. PC Schach 3/93 (German)
 * Andreas Mader (1993). Die Österreicher Kommen! PC Schach 3/93 (German)
 * Göran Grottling (1993). Interview mit Mark Uniacke. PC Schach 3/93 (German)
 * Eric Hallsworth (1993/1994). World Computer Champs Munich 1993. Selective Search 49, pp. 4, pdf hosted by Mike Watters
 * Eric Hallsworth (1994). World Computer Champs Munich 1993 - Games. Selective Search 50, pp. 9, pdf hosted by Mike Watters
 * Larry Kaufman (1994). 1993 World Microcomputer Championship. Computer Chess Reports, Vol. 4 No. 2

=Forum Posts=
 * 12th World Microcomputer Chess Championship Results by Tony Marsland, rec.games.chess, November 8, 1993
 * World Microcomputer Championships by Stefan Hahndel, rec.games.chess, November 8, 1993
 * Munich 12th World Micro Computer Chess Championship Games by Jean-Christophe Weill, rec.games.chess, November 12, 1993
 * HIARCS 2.0 Chess Program by Bryant Fujimoto, rec.games.chess, December 5, 1993

=External Links=
 * 12th World Microcomputer Chess Championship from the ICGA Tournament Database
 * WMCC 1993, CSVN tournament site
 * Downloads | World championships | Games, CSVN download site
 * World Microcomputer Chess Championship : 12th WMCCC : 1993 Munich
 * 12. WMCCC München 1993 from Schachcomputer.info - Wiki (German)
 * Frank Zappa - Sofa No. 2, Circus Krone, Munich, 1978, YouTube Video
 * Frank Zappa, Ike Willis, Denny Walley, Tommy Mars, Peter Wolf, Ed Mann, Arthur Barrow, Vinnie Colaiuta

=References=

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