Amiga Chess v1.0 - Full-featured chess game for OCS/ECS Amiga
==============================================================

A complete chess game written in C (C89) for the classic Amiga,
running on all models from A500 (68000) to A1200/A4000 (68060).
Supports OCS, ECS and AGA graphics systems.

Features:
---------
- Negamax alpha-beta engine with iterative deepening
- Quiescence search, aspiration windows
- Transposition table (Zobrist hashing)
- Move ordering: MVV-LVA, SEE, killer moves, history heuristic
- Piece-square tables (middlegame + endgame)
- Opening book (8 popular openings)
- 5 difficulty levels (level 4-5 disabled on 68000)
- Time limits per move (none / 30s / 60s / 90s)
- Player vs AI / Player vs Player / AI vs AI modes
- PGN save/load with ASL file requester
- Move history with scrolling ring buffer
- Undo/Redo
- Game timer with pause support
- Last move highlight, check highlight
- Score window (Win/Draw/Loss per session)
- Settings saved to PROGDIR:chess.prefs
- GadTools menu (English)
- Procedural piece graphics (no external files required)
- Optional IFF piece graphics (PROGDIR:data/pieces.iff)
- CPU/FPU/Chip detection shown in About

Requirements:
-------------
- AmigaOS 2.0+ (Kickstart v37+)
- 1 MB RAM (512KB Chip + 512KB Fast)
- OCS, ECS or AGA graphics
- Mouse

Recommended:
------------
- 68020 or faster
- 2 MB RAM or more
- Kickstart 3.0+

Installation:
-------------
Copy Szachy_ECS to any directory and run.
Optionally place pieces.iff in PROGDIR:data/ for
custom piece graphics.

Stack: 32768 bytes recommended (set in icon or .run script).

Estimated strength (ELO):
-------------------------
Level 3, no options:   ~1200 ELO
Level 3, TT enabled:   ~1400 ELO
Level 5, TT enabled:   ~1550-1650 ELO

Engine:
-------
MSCP-style negamax alpha-beta, inspired by Marcel van Kervinck's
MSCP (Micro Simple Chess Program). Written from scratch with
numerous enhancements. Public Domain.

Compiler: gcc 2.95.3 / AmigaOS (-m68000 -O2 -noixemul)

Created with assistance of Claude AI (Anthropic).

Author: Benedykt Dziubaltowski <benedykt@netc.fr>

 PERMSSN    UID  GID    PACKED    SIZE  RATIO METHOD CRC     STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  266     846  31.4% -lh5- 79d2 Apr 28  1980 Chees_AI.info
[generic]                41069   91988  44.6% -lh5- 3c76 Apr 28  1980 Chees_AI/Chees_AI
[generic]                  254    1087  23.4% -lh5- a32e Aug 17  1980 Chees_AI/Chees_AI.info
[generic]                   44      49  89.8% -lh5- 67ac Aug 17  1980 Chees_AI/chess.prefs
[generic]                  283     430  65.8% -lh5- d5df Apr 28  1980 Chees_AI/donate.txt
[generic]                  239     481  49.7% -lh5- 5e7c Apr 28  1980 Chees_AI/donate.txt.info
[generic]                 8063   19230  41.9% -lh5- 3762 Apr 28  1980 Chees_AI/manual-EN
[generic]                  229     821  27.9% -lh5- bda8 Apr 28  1980 Chees_AI/manual-en.info
[generic]                 9317   20613  45.2% -lh5- b7a7 Apr 28  1980 Chees_AI/manual-HU
[generic]                  233     821  28.4% -lh5- 3a87 Apr 28  1980 Chees_AI/manual-HU.info
[generic]                 9165   19988  45.9% -lh5- 3af9 Apr 28  1980 Chees_AI/manual-PL
[generic]                  234     821  28.5% -lh5- 17f9 Apr 28  1980 Chees_AI/manual-PL.info
[generic]                 2502    5206  48.1% -lh5- ea60 Apr 21  1980 Chees_AI/old/pieces.iff
[generic]                 2939    8263  35.6% -lh5- 7e59 Apr 21  1980 Chees_AI/old/pieces_preview.png
[generic]                  693    4688  14.8% -lh5- 1aab Apr 22  1980 Chees_AI/old/pionki.iff
[generic]                32578   69256  47.0% -lh5- 2da5 Apr 21  1980 Chees_AI/old/s
[generic]                11162   26788  41.7% -lh5- 41c9 Apr 21  1980 Chees_AI/old/showiff
[generic]                 1451    4347  33.4% -lh5- f7ab Apr 21  1980 Chees_AI/old/showiff.c
[generic]                14067   33004  42.6% -lh5- d3c5 Apr 19  1980 Chees_AI/old/szachy_old
[generic]                  254    1087  23.4% -lh5- a207 Apr 21  1980 Chees_AI/old/Szachy_old.info
[generic]                  501     871  57.5% -lh5- 0bb7 Apr 27  1980 Chees_AI/partia.pgn
[generic]                  233     754  30.9% -lh5- fe84 Apr 20  1980 Chees_AI/pli.txt
[generic]                 1223    2215  55.2% -lh5- caf6 Apr 19  1980 Chees_AI/README.md
[generic]                10047   39366  25.5% -lh5- ff72 Apr 28  1980 Chees_AI/source/chess.c
[generic]                 1391    3460  40.2% -lh5- 9786 Apr 22  1980 Chees_AI/source/chess.h
[generic]                   46      49  93.9% -lh5- 58a2 Apr 28  1980 Chees_AI/source/chess.prefs
[generic]                 9278   39575  23.4% -lh5- c4a7 Apr 28  1980 Chees_AI/source/gfx.c
[generic]                 2232    5951  37.5% -lh5- ad29 Apr 28  1980 Chees_AI/source/gfx.h
[generic]                10295   42915  24.0% -lh5- 69fb Apr 28  1980 Chees_AI/source/gfx_ecs.c
[generic]                 1525    4621  33.0% -lh5- 8bbe Apr 28  1980 Chees_AI/source/gfx_ecs.h
[generic]                 1267    4042  31.3% -lh5- 2ac9 Apr 21  1980 Chees_AI/source/history.c
[generic]                  368     786  46.8% -lh5- bc86 Apr 21  1980 Chees_AI/source/history.h
[generic]                13468   53585  25.1% -lh5- 2f83 Apr 28  1980 Chees_AI/source/main.c
[generic]                  405    1058  38.3% -lh5- 6ec2 Apr 28  1980 Chees_AI/source/Makefile
[generic]                 4155    4925  84.4% -lh5- b5c1 Apr 19  1980 Chees_AI/source/Makefile.info
[generic]                 3138   12046  26.1% -lh5- d799 Apr 19  1980 Chees_AI/source/pgn.c
[generic]                  292     656  44.5% -lh5- 2d40 Apr 19  1980 Chees_AI/source/pgn.h
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total        37 files  194906  526689  37.0%            Apr 29 23:17