NGplay

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NG-play,

a relatively simple, open source chess engine by George Georgopoulos, compliant to the Chess Engine Communication Protocol and written in C. NG-play uses a 10x12 board, and performs a negamax alpha-beta search with iterative deepening, LMR, futility pruning and null move pruning. Evaluation considers material and mobility in a first pass, and focuses on king safety in the middlegame, as well as passed pawn evaluation in a second pass [1]. The engine was written from scratch, the XBoard and opening book code inspired by Tom Kerrigan’s TSCP. Bruce Moreland is credited since his programming topics site [2] helped in writing the code to collect the principal variation [3].

Forum Posts#

• A not very recent Greek chess engine by Ruxy Sylwyka, CCC, December 03, 2012
• Author of NGplay_61 should give credit to tscp by User923005, OpenChess Forum, December 05, 2012
• new chess computer: CT800 by Rasmus Althoff, CCC, September 05, 2016 » CT800
• NGplay 9.87 64-bit released by Graham Banks, CCC, February 25, 2017

External Links#

• George Georgopoulos Personal page
• NGplay_9.87.c
• NG-Play in CCRL 40/40

References#

1. ↑ NGplay_9.87.c
2. ↑ Bruce Moreland’s Programming Topics archived by the Wayback Machine
3. ↑ NGplay_9.87.c

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