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SPOC: The Chess Master - DOS


Game is con­trol­led by the same keys that are used to playing un­der MS DOS. For full­screen press 'Right Alt' + 'En­ter'.


If the game e­mu­la­ti­on spe­ed is low, you can try to in­cre­a­se it by re­lo­a­ding this pa­ge with­out a­ds or cho­o­se a­no­ther e­mu­la­tor from this table.

Other platforms:

Unfortunately, this game is cur­rent­ly available only in this ver­si­on. Be patient :-)

Game info:
SPOC: The Chess Master - box cover
box cover
Game title: SPOC: The Chess Master
Platform: MS-DOS
Author (released): Cypress Software (1983)
Genre: Puzzle Mode: Multiplayer
Design: Jacques F. Middlecoff
Game manual: not available
Download: SPOC.zip

Game size:

60 kB
Recommended emulator: DOSBox

From ChessPrograming Wiki:

   SPOC (SPOC, the Chess Master) is an early chess program for the IBM PC by Jacques Middlecoff, written in 8086 assembly. SPOC stands for Selective Pruning Optimization Chess, claiming a new algorithm for the game, and was commercially released in 1983 by Silicon Valley based SDL Cypress Software, San Jose, California. In his review, along with the Chess Partner program, chess player and programmer Dave Whitehouse's recommendation was to wait for something better to come along. However, SPOC 2.0 was able to take back moves, to enter positions, and to promote pawns to any piece.
   SPOC played the ACM 1985, searching about 300 nodes per second, with a good result versus two Canadian programs where some repetition issues occurred, further losing from the third Canadian entry Phoenix and from CHAOS.

More details about this game can be found on ChessProgramming.org.

For fans and collectors:
Find this game on video server YouTube.com or Vimeo.com.
Buy original version of this game on Amazon.com or eBay.com.

Find digital download of this game on GOG or Steam.


This ver­sion of SPOC: The Chess Master was de­sig­ned for per­so­nal com­pu­ters with o­pe­ra­ting sys­tem MS-DOS (Mi­cro­soft Disk O­pe­ra­ting Sys­tem), which was o­pe­ra­ting sys­tem de­ve­lo­ped by Mi­cro­soft in 1981. It was the most wi­de­ly-used o­pe­ra­ting sys­tem in the first half of the 1990s. MS-DOS was sup­plied with most of the IBM com­pu­ters that pur­cha­sed a li­cen­se from Mi­cro­soft. Af­ter 1995, it was pu­s­hed out by a gra­phi­cal­ly mo­re ad­van­ced sys­tem - Win­dows and its de­ve­lop­ment was ce­a­sed in 2000. At the ti­me of its grea­test fa­me, se­ve­ral thou­sand ga­mes de­sig­ned spe­ci­fi­cal­ly for com­pu­ters with this sys­tem we­re cre­a­ted. To­day, its de­ve­lop­ment is no lon­ger con­ti­nue and for e­mu­la­tion the free DOSBox e­mu­la­tor is most of­ten used. Mo­re in­for­ma­ti­on about MS-DOS operating system can be found here.

Available online emulators:

5 different online emulators are available for SPOC: The Chess Master. These emulators differ not only in the technology they use to emulate old games, but also in support of various game controllers, multiplayer mode, mobile phone touchscreen, emulation speed, absence or presence of embedded ads and in many other parameters. For maximum gaming enjoyment, it's important to choose the right emulator, because on each PC and in different Internet browsers, the individual emulators behave differently. The basic features of each emulator available for this game SPOC: The Chess Master are summarized in the following table:

Emulator Technology Multiplayer Fullscreen Touchscreen Speed
Archive.org JavaScript YES NO NO fast
js-dos JavaScript YES YES NO fast
js-dos 6.22 JavaScript YES YES NO fast
jsDosBox JavaScript YES NO NO slow
jDosBox Java applet YES YES NO fast

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