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a former private and as of September 30, 2014 and version 3.20 [1], free UCI compliant SMP chess engine by primary author Giancarlo Delli Colli, at times supported by Stefano Rocchi et al.. As noted by Giancarlo Delli Colli, the progress of Equinox is the result of years of hard work by the authors - and "of course, like everybody else does", taking ideas from open source engines like Crafty, Stockfish, Ippolit, and others, from the Chess Programming Wiki and the ICGA Journal [2] .
Saturn at Equinox [3]

Tournament Play

After the Lion disaccord at the WCCC 2006 in Turin, Giancarlo was welcomed back to the ICGA in 2009, to play with the then original Equinox the WCCC 2009 and the open hardware 14th Computer Olympiad 2009 [4] in Pamplona, supported by opening book author Harry Schnapp. During the Italian Festival della Scienza Futuro [5] , Genoa at November 01, 2009, Equinox drew from WGM Elena Sedina, and won versus GM Igor Efimov [6] [7] . It further participated at Italian Open Chess Software Cups, the IOCSC 2010, the IOCSC 2011, where it won ahead of Chiron, and the "free" group of the IOCSC 2012, where Equinox became runner-up behind Vitruvius. The "free" group includes both derivative engines and engines whose teams do not accept examinations accordant to the current regulation of the G 6 for original engines [8] [9] . Equinox further is active in various private engine tournaments, such as the Thoresen Chess Engines Competition [10] .


Team Equinox celebrating IOCSC 2012 at Galleria Alberto Sordi, Rome [11] [12]

Selected Games

Festival della Scienza Futuro, Genoa, Igor Efimov - Equinox [13]
[Event "Festival della Scienza Futuro"]
[Site "Genoa, Italy"]
[Date "2009.11.01"]
[Round "1"]
[White "Igor Efimov"]
[Black "Equinox"]
[Result "0-1"]
1.d4 Nf6 2.Bg5 Ne4 3.Bf4 c5 4.f3 Qa5+ 5.c3 Nf6 6.Nd2 cxd4 7.Nb3 Qb6 8.Qxd4 Nc6
9.Qxb6 axb6 10.Be3 g6 11.Bxb6 Bh6 12.e4 d5 13.Nd4 dxe4 14.fxe4 Be3 15.Bb5 Bd7
16.Ngf3 Nxe4 17.Ke2 Bxd4 18.Bxd4 Nxd4+ 19.Nxd4 e5 20.Bxd7+ Kxd7 21.Nf3 Ke6
22.a4 Rhd8 23.Ra3 f5 24.Rb3 Rxa4 25.Rxb7 Nxc3+ 26.bxc3 Ra2+ 27.Ke1 Ra1+ 28.Ke2
Rxh1 29.Ng5+ Kd5 30.Rxh7 e4 31.h4 Ra8 32.Rd7+ Ke5 33.Rd2 Rxh4 0-1

See also

Forum Posts

External Links

Chess Engine



  1. ^ Equinox 3.20 (free to all) by Graham Banks, CCC, September 30, 2014
  2. ^ Message from the Equinox author by Graham Banks, CCC Engine Origins (requires registration), March 05, 2013
  3. ^ When the planet Saturn is at equinox, its rings pick up almost no light, as seen in this image by Cassini, August 12, 2009, source NASA CICLOPS, Equinox from Wikipedia
  4. ^ Strongest chess event ever - TODAY by Gian-Carlo Pascutto, CCC, May 13, 2009
  5. ^ Festival della Scienza 2009
  6. ^ WGM Sedina and GM Efimov battling against Equinox, November 4, 2009
  7. ^ Sedina/Equinox - Efimov/Equinox by Stefano Gemma, CCC, November 03, 2009
  8. ^ Le pagine dei chess engines italiani « G 6 (Italian)
  9. ^ Italian Open Chess Software Cup 2012 « G 6 (Italian)
  10. ^ TCEC - Engine Ratings
  11. ^ Italian Open Chess Software Cup - Photos | Facebook
  12. ^ 3ª Italian Open... | Facebook
  13. ^ Festival della Scienza 2009

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