Now

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Now.jpg
Now,
a chess program by Mark Lefler, competing at one World Computer Chess Championship, the WCCC 1999 in Paderborn, and two World Microcomputer Chess Championships, the WMCCC 1991 and WMCCC 1993. Now further played the ACM 1990, ACM 1993 and ACM 1994, all three editions of Don Beal's Uniform-Platform Computer Chess Championship, the IPCCC 1994 and five Aegon Tournaments.

Now tied with first place among all chess programs at the Aegon 1996 Tournament, receiving 4.5 out of 6 points. This tied the program with other world class programs such as Fritz, and it beat Grandmaster Larry Christiansen [1] . Now was written in Pascal, running on PCs with MS-DOS operating system. In 2007, Mark started a rewrite using C [2] .
Now Screen [3]

Descriptions

1991

from Don Beal's WMCCC 1991 report [4] :
Written by Mark Lefler, who has spent two full-time years developing his program, and competed in last year's ACM tournament. The evaluation is mostly piece values, with positional scores sometimes worth up to two Panws. Search techniques used include iterative deepening, with check extensions, no singular extensions, and hung-piece extensions at depth zero.

1993

from Don Beal's UPCCC 1993 report [5] [6]
This proginated as a shareware program by Mark Lefler, possibly going to be re-released with the latest version. The program scored equally with GNU in the "uniform platform" tournament last year. NOW has specialized knowledge about some Pawn and Bishop endgames. Its search mechanism includes extensions for certain tactical threats, and is selective in its last 3 plies.

1999

from the ICGA tournament site [7] :
General alpha beta searcher, with lots of knowledge. Has done well against humans, as evidenced by the Aegon matches.

Forum Posts


External Links


References

  1. ^ Zillions of Games - Who Are We?
  2. ^ If You Were Starting From Scratch by Mark Lefler, CCC, August 22, 2007
  3. ^ DOS Museum - Download NOW - A Computer Chess Program
  4. ^ Don Beal (1991). Report on the 11th World Microcomputer Chess Championship. ICCA Journal, Vol. 14, No. 2
  5. ^ Don Beal (1993). Report on the QMW 1993 Uniform-Platform Computer-Chess Championship. ICCA Journal, Vol. 16, No. 3, pp. 166-171.
  6. ^ QMW computer chess by Don Beal, rec.games.chess, August 19, 1993
  7. ^ Now's ICGA Tournaments

What links here?

Page Date Edited
ACCA 2006 Jul 14, 2014
ACCA 2007 Jul 14, 2014
ACCA 2009 Jul 14, 2014
ACCA 2010 Jul 14, 2014
ACM 1990 Jun 7, 2016
ACM 1993 Oct 30, 2017
ACM 1994 May 5, 2017
Aegon 1993 Mar 26, 2017
Aegon 1994 Mar 26, 2017
Aegon 1995 Apr 6, 2017
Aegon 1996 Jan 22, 2017
Aegon 1997 Apr 7, 2017
Almond Feb 14, 2012
CCT10 May 5, 2013
CCT12 Jan 28, 2018
CCT9 Aug 25, 2013
DOCCC 2010 Aug 15, 2015
Engines Mar 10, 2018
Harvard Cup 1994 Apr 21, 2014
ICT 2010 Sep 14, 2015
IPCCC 1994 Jul 31, 2013
KPK May 12, 2016
Mark Lefler Nov 23, 2017
Now Jan 7, 2016
Null Move Pruning Test Results May 16, 2015
Pawn Endgame Oct 11, 2017
Scaramanga Mar 6, 2011
Spector Nov 11, 2016
UPCCC 1992 Mar 9, 2012
UPCCC 1993 Mar 6, 2015
UPCCC 1994 Mar 9, 2012
WCCC 1999 Jul 13, 2017
WCRCC 2007 Nov 21, 2016
WCRCC 2010 Jul 14, 2014
Who's Who Sep 6, 2017
WMCCC 1991 Sep 18, 2016
WMCCC 1993 Dec 30, 2017

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