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a WinBoard aka Chess Engine Communication Protocol compliant open source chess engine by Marco Giusfredi, written in Ansi C. Soldat was first released in July 2002 as version 0.18 [1]. The most recent Soldat III 1.87 appeared on July 03, 2017.
Hans Larwin - Soldat und Tod 1917 [2]


Soldat [3] represents the board as 0x88 mailbox, and applies PVS with aspiration windows within its iterative deepening framework, enhanced by a transposition table with Zobrist hashing, NMP (NMR in the late endgame), LMR, razoring, check extensions and history heuristic. Its quiescence search tests whether the bounds are outside a ±250 centipawn window around material balance for lazy evaluation, while the full evaluation additionally considers piece-square tables, mobility, pawn structure, tempo and king safety in the middlegame.

See also

Forum Posts

External Links

Chess Engine



  1. ^ New WB engine from Italy! by Leo Dijksman, Winboard Forum, July 05, 2002
  2. ^ Hans Larwin - Soldat und Tod or Death and the Soldier 1917, January 1917, source: Museum of Military History, Vienna, Wikimedia Commons, "During World War I, Hans Larwin was involved as an official war painter on various fronts for the Austria-Hungary dual monarchy", Hans Larwin from Wikipedia, Guus de Vries (2016). The Great War Through Picture Postcards. Pen and Sword Books. ISBN 9781473856714, pp. 60
  3. ^ Description based on Soldat_3.187.c from Soldat-3_187.zip, G 6 site

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