Home * Tournaments * World Microcomputer Chess Championship * 12th WMCCC Munich 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 [1] , 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 [2]. 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.
Neuschwanstein Excursion, November 4th [3]

Software Group

^[4]

Final Standing

12th World Microcomputer Chess Championship, Oct. 1993, München GER ^{[5] [6]}

#	Program	CC	1	2	3	4	5	6	7	8	9	P	SOS	SoDOS
1	Hiarcs	GB	11w1	16b1	2w½	10b1	4w0	13b1	8b1	3w1	6w1	7½	49	39½
2	The King	NL	14b1	7w1	1b½	13w½	3b½	9w1	5b1	4w½	10b1	7	50	38
3	Genius 2	GB	17w1	8b1	10w1	4b½	2w½	5w0	9b1	1b0	13b1	6	51	31½
4	Nimzo-Guernica	AT	25b1	15w1	5b1	3w½	1b1	8w0	10w½	2b½	7w½	6	49½	32¼
5	Mephisto Gideon	NL	26w1	13b½	4w0	12b1	23w1	3b1	2w0	10b½	8b½	5½	45½	25
6	Quest	NL	12b0	11w1	21b0	18w1	7b½	14w1	16b1	8w1	1b0	5½	45	26¼
7	Pandix	HU	19w1	2b0	16w½	24b1	6w½	10b0	13w1	11w1	4b½	5½	45	25
8	Kallisto	NL	28b1	3w0	18b1	21w1	15b1	4b1	1w0	6b0	5w½	5½	43	21¼
9	MChess Pro X	US	21b0	24w1	14b1	22w1	13b½	2b0	3w0	16w1	15b1	5½	41½	22¾
10	Bobby II	DE	18b1	21w1	3b0	1w0	22b1	7w1	4b½	5w½	2w0	5	48½	22¼
11	Mirage	RU	1b0	6b0	19w1	14w½	25b1	15w½	12w1	7b0	23w1	5	43	20
12	Ulysses	DE	6w1	23b½	13w0	5w0	20b1	22w½	11b0	18b1	19w1	5	39½	21
13	Écume X	FR	20w1	5w½	12b1	2b½	9w½	1w0	7b0	23b1	3w0	4½	49½	21½
14	Now	US	2w0	19b1	9w0	11b½	21w1	6b0	22b1	15w0	25w1	4½	41½	16½
15	Kasparov Sparc	US	27w1	4b0	23w½	16b1	8w0	11b½	18w½	14b1	9w0	4½	40½	17¼
16	Greif	DE	22b1	1w0	7b½	15w0	17w1	23b1	6w0	9b0	28b1	4½	40½	14¾
17	Nightmare	DE	3b0	28w1	22b0	20w½	16b0	19w1	26b0	27w1	24w1	4½	31	12
18	Centaur	RU	10w0	26b1	8w0	6b0	24w1	21b1	15b½	12w0	27b½	4	37½	13¼
19	SOS	DE	7b0	14w0	11b0	28w1	26w1	17b0	27w1	21b1	12b0	4	33½	9
20	Magellan	AT	13b0	22w0	28b1	17b½	12w0	27b1	23w0	26b1	21w½	4	30	9½
21	Gandalf	DK	9w1	10b0	6w1	8b0	14b0	18w0	25b1	19w0	20b½	3½	41	16
22	Experimental	DE	16w0	20b1	17w1	9b0	10w0	12b½	14w0	24b0	26w1	3½	39½	14
23	Breakthrough	DE	24b½	12w½	15b½	25w1	5b0	16w0	20b1	13w0	11b0	3½	39½	13½
24	Diogenes	DE	23w½	9b0	27w1	7w0	18b0	25w½	28b½	22w1	17b0	3½	32	9
25	Viktor 2	DE	4w0	27b½	26w1	23b0	11w0	24b½	21w0	28w1	14b0	3	31½	6¼
26	Chess Brain	DE	5b0	18w0	25b0	27b1	19b0	28b1	17w1	20w0	22b0	3	31	7
27	BB	FR	15b0	25w½	24b0	26w0	28w1	20w0	19b0	17b0	18w½	2	31	4
28	Pschach	DE	8w0	17b0	20w0	19b0	27b0	26w0	24w½	25b0	16w0	½	34	1¾

• CC Country Codes
• SOS: Sum of Opponent Scores
• SoDOS: Sum of Defeated Opponent Scores

Participants

Program	CC	Authors	Processor	MHz
BB	FR	Christophe Jolly	486	66
Bobby II	DE	Hans-Joachim Kraas, Günther Schrüfer	486	66
Breakthrough	DE	Werner Koch	SPARC	36
Centaur	RU	Victor Vikhrev, Alexey Manjakhin	486	66
Chess Brain	DE	Karl-Heinz Milaster	Pentium [7] [8]	66
Diogenes	DE	Jörg Burwitz	486	66
Écume X	FR	Marc-François Baudot, Jean-Christophe Weill	486	66
Experimental	DE	Wolfgang Delmare, Thorsten Kohfeldt	Pentium	60
Gandalf	DK	Steen Suurballe, Dan Wulff	486	66
Genius 2	GB	Richard Lang	Pentium	60
Greif	DE	Michael Ehrig	486	66
Hiarcs	GB	Mark Uniacke	SPARC	36
Kallisto	NL	Bart Weststrate	486	66
Kasparov Sparc	US	Dan Spracklen, Kathe Spracklen	SPARC	50
Magellan	AT	Karl Pevny	486	66
MChess Pro X	US	Marty Hirsch	Pentium	60
Mephisto Gideon	NL	Ed Schröder	Pentium	60
Mirage	RU	Yuri Shpeer, Vladimir Rybinkin	486	66
Nightmare	DE	Reinhold Gellner, Gaby von Rekowski	486	66
Nimzo-Guernica	AT	Chrilly Donninger	486	80
Now	US	Mark Lefler	486	66
Pandix	HU	Gyula Horváth, Zsuzsa Horváth	486	66
Pschach	DE	Peter Sucker	486	66
Quest	NL	Frans Morsch	486	66
SOS	DE	Rudolf Huber	486	66
The King	NL	Johan de Koning	DEC Alpha	150
Ulysses	DE	Ulf Lorenz, Valentin Rottmann	SPARC	41
Viktor 2	DE	Wolfgang Rausch, Dieter Götz	486	66

• CC Country Codes

Manufacturers Group

^[9]

Final Standing

#	Program	CC	P	G
1	Mephisto Genius 2	GB	10½	16
2	TASC R30	NL	10	16
3	RISC 2500	NL	3½	16

• CC Country Codes

Participants

Program	CC	Authors	Processor	MHz	Company
Mephisto Genius 2	GB	Richard Lang	486	80	Hegener & Glaser
RISC 2500	NL	Johan de Koning	ARM6	14	Saitek
TASC R30	NL	Johan de Koning	ARM6	40	TASC

• 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

^[10]

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

The New Champion		ICCA President Tony Marsland, prize ceremony

Notable Games

^[11]

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 ^[12], 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 ^[13]!

3n4/KP6/3k2p1/4p2p/8/2N3P1/8/8 b - - 0 61

Desperado

Round 8, The King - Nimzo-Guernica » Desperado ^[14]

[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 ^[15]:

[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 [16]

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

1. ^ Now Fleming’s Hotel Munich Schwabing
2. ^ David Levy (1993). The 12th World Microcomputer Chess Championship - Information for Participants. ICCA Journal, Vol. 16, No. 3
3. ^ Neuschwanstein Castle is a famous German castle in Schwangau, Bavaria, built by King Ludwig II of Bavaria, Photo by Cezary Piwowarski, June 2007, CC BY-SA 4.0, Schloss Neuschwanstein - Wikimedia Commons, Neuschwanstein Castle from Wikipedia
4. ^ Larry Kaufman (1994). 1993 World Microcomputer Championship. Computer Chess Reports, Vol. 4 No. 2
5. ^ WMCC 1993, CSVN tournament site
6. ^ 12th World Microcomputer Chess Championship - Munich 1993 (ICGA Tournaments)
7. ^ Pentium PC plus Chess Co-Processor
8. ^ Karl-Heinz Milaster's schachserver (German)
9. ^ Larry Kaufman (1994). 1993 World Microcomputer Championship. Computer Chess Reports, Vol. 4 No. 2
10. ^ Hiarcs Fan Page by Thorsten Czub
11. ^ Downloads | World championships | Games, CSVN download site
12. ^ Chrilly Donninger (1999). Computer machen keine Fehler. CSS 2/99, pdf (German)
13. ^ Your best bug ? by Ed Schröder, CCC, August 06, 2012
14. ^ Re: Your best bug ? by Ed Schröder, CCC, August 07, 2012
15. ^ CSS Article Translation Oct 24 by Rolf Tüschen, rgcc, February 12, 1997, post 13 by mclane, February 15, 1997
16. ^ Diaz Cartoon from the WMCCC 1993 booklet from Computerschach und Spiele, via More DIAZ Cartoons hosted by Ed Schröder

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