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Quest,
a chess engine by Frans Morsch which evolved from Nona to became the code base for various commercial programs and dedicated computers, most notably the famous ChessBase engine Fritz in 1991, and the TASC engine Chessica in 1995, after Fritz sensationally won the WCCC 1995. The 6502 version of Quest was further commercialized as 8 bit Sphinx by Newcrest Technology [1] [2] , and was also ported to the H8 processor, as used in many dedicated units of various manufacturers in the early 90s, such as the Saitek Brute Force and GK 2100. Later, Quest was often used as experimental version of Fritz in tournaments. Quest was the strongest chess program at Aegon 1996 [3] . It won the DOCCC 1988, DOCCC 1994, and the DOCCC 1999, while during the DOCCC 2001 there was an attempt of an name change from Fritz to Quest [4] [5] .
A Knight at the Crossroads by Viktor Vasnetsov [6] [7]

Null Move

Frans Morsch, as well as other Dutch computer chess programmers like Bart Weststrate and Dap Hartmann [8] , did early experiments with recursive null move pruning in the late 80s, likely after it was discussed at the panel workshop during the WCCC 1986 after Don Beal's talk covering null move [9] . Frans Morsch told Chrilly Donninger about recursive null move, who popularized it by his Null Move and Deep Search paper in the ICCA Journal 1993 [10] .

Selected Games

DOCCC 1988, round 03, Quest - Rebel [11]
[Event "DOCCC 1988"]
[Site "Leiden NED"]
[Date "1988.10.??"]
[Round "03"]
[White "Quest"]
[Black "Rebel"]
[Result "1-0"]
 
1.d4 Nf6 2.Bf4 d5 3.Nf3 Nbd7 4.h3 c5 5.e3 Qb6 6.b3 Nh5 7.Bh2 cxd4 8.Nxd4 Nhf6
9.Bb5 a6 10.Bxd7+ Bxd7 11.O-O e6 12.c4 dxc4 13.bxc4 Rc8 14.Nd2 Bb4 15.a3 Bxd2
16.Qxd2 Rxc4 17.Rfb1 Qa7 18.Be5 b5 19.a4 Ne4 20.Qb2 f6 21.axb5 fxe5 22.Nf3 O-O
23.bxa6 Ra4 24.Rxa4 Bxa4 25.Qxe5 Nc5 26.Ng5 Bd7 27.Qd4 Ra8 28.Rc1 Rc8 29.Ne4 e5
30.Qd5+ Ne6 31.Rb1 Rc7 32.Rb7 Qa8 33.Ng5 Qc8 34.Rxc7 Qxc7 35.Nxe6 Bxe6 36.Qxe6+
Kf8 37.Kf1 h6 38.Ke2 h5 39.Kf3 h4 40.Kg4 Qd8 41.Kf5 Qb8 42.Qxe5 Qb1+ 43.Kg5 Qb6
44.Qf4+ Kg8 45.Qc4+ Kh8 46.Kxh4 Qd8+ 47.Kg4 Qd7+ 48.Kf3 Qd1+ 49.Ke4 Qd7 50.Kf4
Qd6+ 51.Kf5 Kh7 52.Qe6 Qf8+ 53.Kg5 Qd8+ 54.Kg4 Qa8 55.e4 Kh8 56.f4 Qd8 57.a7
Qa8 58.Qb6 Kh7 59.Kf3 Kg8 60.Qb8+ 1-0
Game and short analyze on Lichess.org : https://fr.lichess.org/8KCoX1lG

See also


Forum Posts


External Links

Chess Engine

Misc


References

  1. ^ CXG Sphinx Dominator from Schachcomputer.info Wiki
  2. ^ CXG Sphinx Galaxy from Schachcomputer.info Wiki
  3. ^ Aegon 1996, CSVN site
  4. ^ Niederländische Computerschach Meisterschaft 2001 Leiden - Erster Teil by Eric van Reem, ChessBase.de Events (German) (Fritz 7)
  5. ^ Niederländische Computerschach Meisterschaft 2001 Leiden - Zweiter Teil by Eric van Reem, ChessBase.de Events (German) (Quest)
  6. ^ Quest from Wikipedia
  7. ^ The Bold Knight, the Apples of Youth, and the Water of Life - from Wikipedia
  8. ^ Chrilly Donninger (1994). Die Kunst des Nichtstuns. CSS 2/94, pdf (German)
  9. ^ Re: SOMA by Ed Schroder, CCC, August 26, 2009
  10. ^ Chrilly Donninger. (1993). Null Move and Deep Search: Selective-Search Heuristics for Obtuse Chess Programs. ICCA Journal, Vol. 16, No. 3, pp. 137-143
  11. ^ Downloads | Open Dutch Computer Chess Championships | Games

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