| Readme: | Short: Stockfish 19, strong UCI chess engine
Author: The Stockfish developers
Port: Papiosaur (papiosaur2 hotmail fr)
Type: game/think
Version: 19 (14-11-2026)
Architecture: ppc-morphos
Requires: MorphOS 3.20+, 300 MB of free memory
URL: https://stockfishchess.org
Stockfish for MorphOS
=====================
Stockfish is one of the strongest chess engines in the world. It analyses
chess positions and computes the best moves, using a neural network (NNUE)
to evaluate the positions. The network is built into the program, which
explains its size.
Stockfish has no board of its own: it is a UCI engine, used by a chess
program that draws the board and sends it the moves. It can also be used
directly in a Shell.
This version is about 2.5 times faster than the previous MorphOS release.
HOW TO RUN IT
-------------
In your chess program, choose Stockfish-19 as the UCI engine.
In a Shell, start Stockfish-19 and type for example:
uci
position startpos moves e2e4
go depth 15
quit
"Stockfish-19 bench" measures the speed of your computer.
ENDGAME TABLEBASES
------------------
Stockfish can use the Syzygy tablebases to play endgames perfectly. Two
small tables are in the Syzygy drawer. More can be downloaded from
https://syzygy-tables.info (the 3, 4 and 5 piece tables are about 1 GB;
6 pieces need 150 GB).
setoption name SyzygyPath value PROGDIR:Syzygy
Several drawers are separated by ";", for example Work:wdl;Work:dtz.
DRAWER CONTENTS
---------------
Stockfish-19 the engine
Syzygy/ two endgame tables
doc/ licence, authors and contributors
Papio-Software link to papio-software.com
Support link to support the port
CREDITS
-------
Stockfish The Stockfish developers (see doc/AUTHORS)
THANKS
------
- MorphOS Team for MorphOS
LICENSE
-------
Free software under the GNU General Public License v3, see doc/COPYING.
Sources of this MorphOS build:
https://www.papio-software.com/sources/ports/Stockfish-src-19.lha
CHANGELOG
---------
17 - first public release
19 - Stockfish 19, optimised build (about 2.5x faster), endgame
tablebases fixed
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Ambient (151)
Stockfish-19.lha