Zevra

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Zevra, an UCI compliant open source chess engine by Oleg Smirnov, written in C++ and licensed under the GNU General Public License. After a two years break, the development continued. Zevra2 was released in August 2021.

=Features=

Board Representation

 * Dense Bitboard Board-Definition
 * 8x8 Board
 * Magic Bitboards

Search

 * Iterative Deepening
 * Aspiration Windows
 * Negamax
 * Principal Variation Search
 * Transposition Table
 * Selectivity
 * Check Extensions
 * Late Move Reductions
 * Mate Distance Pruning
 * Null Move Pruning
 * Futility Pruning
 * Reverse Futility Pruning
 * Multi-Cut
 * Razoring
 * Quiescence Search
 * Move Ordering
 * Hash Move
 * Internal Iterative Deepening
 * Killer Heuristic
 * MVV/LVA
 * History Heuristic

Evaluation

 * Material
 * Piece-Square Tables
 * Mobility
 * Pawn Structure
 * Isolated Pawn
 * Doubled Pawn
 * Passed Pawn
 * King Tropism

=Forum Posts=
 * Tevra 1.6.2 r536 by Norbert Raimund Leisner, CCC, November 30, 2017
 * Re: Tevra 1.6.2 r536 by Oleg Smirnov, CCC, March 12, 2017


 * Zevra chess engine - I went back to development by Oleg Smirnov, CCC, August 28, 2021

=External Links=

Chess Engine

 * GitHub - sovaz1997/Zevra2: Zevra 2 is new version of my chess engine
 * GitHub - sovaz1997/Zevra: Chesss Programm (old versions without Null Move Pruning)
 * SDChess - Download engines
 * Zevra at CCRL Blitz

Misc

 * ζέβρα (zévra)- Wiktionary
 * Zebra from Wikipedia
 * Zebra (disambiguation) from Wikipedia

=References= Up one Level