Arachne

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Arachne,
an experimental chess program by Maarten van der Meulen and chess testbed of his research on search algorithms, like Alpha-Beta, and the best-first algorithms SSS*, Conspiracy number and Proof-number Search, including parallel Conspiracy number search [2] for instance in 1988 on a 10-processor system [3], and evaluation [4]. In his ICCA Journal paper [5] , Maarten van der Meulen mentions experiments with cn-search as published in 1988 by David McAllester [6] in Arachne not encouraging [7] , and introduced a new variation dubbed applied cn-search [8]. Arachne played six consecutive Dutch Computer Chess Championships from 1985 until 1990.

Selected Games

Dappet

DOCCC 1989, round 1, Dappet - Arachne [9]

[Event "DOCCC 1989"]
[Site "Leiden NED"]
[Date "1989.10.??"]
[Round "01"]
[White "Dappet"]
[Black "Arachne"]
[Result "1-0"]

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4 f6
7.dxe5 Ncb4 8.exf6 Nxf6 9.Bf7+ Ke7 10.Qe2+ Kd6 11.Qd2+ Nbd5
12.Bxd5 Qe8+ 13.Ne4+ Ke7 14.O-O Nxe4 15.Bxe4 Qa4 16.Re1 Be6
17.Bd5 Qd7 18.Rxe6+ Kd8 19.Bxb7 Qxd2 20.Nxd2 Rb8 21.Bc6 Be7
22.Nb3 Rf8 23.Be3 Bd6 24.Bxa7 Rb4 25.Rae1 Bxh2+ 26.Kxh2 Rbf4
27.Re8+ Rxe8 28.Rxe8# 1-0

Duck

DOCCC 1989, round 2, Arachne - Duck

[Event "DOCCC 1989"]
[Site "Leiden NED"]
[Date "1989.10.??"]
[Round "2"]
[White "Arachne"]
[Black "Duck"]
[Result "1-0"]

1.d4 a6 2.e4 Nf6 3.e5 Nd5 4.c4 Nb4 5.Qd2 e6 6.Be2 d5 7.cxd5 Nxd5 8.Nf3 Nc6
9.O-O Be7 10.Nc3 Rf8 11.Qc2 Nxc3 12.bxc3 h5 13.Qh7 g5 14.Qxh5 Rg8
15.Be3 Bd7 16.h3 Na5 17.Qg4 Kf8 18.h4 Bc6 19.Nxg5 Rg7 20.Nxe6+ fxe6
21.Bh6 Bf6 22.exf6 Qxf6 23.Qxg7+ Qxg7 24.Bxg7+ Kxg7 25.Bg4 Rh8
26.h5 Be8 27.Rab1 Bxh5 28.Bxe6 Bg6 29.Rb2 Re8 30.Re1 Bf5 31.Re5 Rxe6
32.Rxf5 b6 33.g3 Re1+ 34.Kg2 Rc1 35.Rf3 Re1 36.Rb4 Re2 37.a3 Ra2 38.a4 Rd2
39.Re3 Kf6 40.Kf3 Kf7 41.g4 Rc2 42.d5 Rd2 43.Rf4+ Kg8 44.c4 c6 45.Re8+ Kg7
46.Re7+ Kg8 47.Rf6 cxd5 48.cxd5 Nc4 49.Rc6 Kf8 50.Re4 b5 51.Re2 Rxd5
52.Rxa6 bxa4 53.Rxa4 Rd4 54.Ra7 Rd5 55.Kf4 Rd6 56.g5 Nb6 57.f3 Nd7
58.Kf5 Rd4 59.Ra8+ Nb8 60.Rxb8+ Kf7 61.g6+ Kg7 62.Re7+ Kh6 63.Rh8# 1-0

See also

Publications

Arachne

Arachne elsewhere

External Links

Chess Program

Misc

feat. John Lee, Gerry Brown, Joachim Kühn, Charlie Mariano

References

  1. Illustration by Gustave Doré, 1861, for Dante's Inferno, Cultural depictions of spiders from Wikipedia, Arachne from Wikipedia.de (German)
  2. Maarten van der Meulen (1988). Parallel Conspiracy-Number Search. M.Sc. thesis, Faculty of Mathematics and Computer Science, Vrije Universteit, Amsterdam
  3. Dap Hartmann (1988). Report on the 8th Dutch National Computer-Chess Championship. ICCA Journal, Vol. 11, No. 4 » DOCCC 1988
  4. Maarten van der Meulen (1989). Weight Assessment in Evaluation Functions. Advances in Computer Chess 5
  5. Maarten van der Meulen (1990). Conspiracy-Number Search. ICCA Journal, Vol. 13, No. 1
  6. David McAllester (1988). Conspiracy Numbers for Min-Max Search. Artificial Intelligence, Vol. 35, No. 1, pp. 287-310. ISSN 0004-3702.
  7. Dap Hartmann, Peter Kouwenhoven (1989). The 9th Dutch Computer-Chess Championship. ICCA Journal, Vol. 12, No. 4 » DOCCC 1989
  8. Maarten van der Meulen, Victor Allis, Jaap van den Herik ('1990). A Comment on `Conspiracy-Number Search. ICCA Journal, Vol. 13, No. 2
  9. The chess games of Arachne (Computer) from chessgames.com

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