/Home or play chess at
......... Google App Engine ........... .... ....


Chess software for fun

ceturtdiena, 2016. gada 1. septembris

NES chess project

Nintendo is a 8-bit console of 80s (wiki). AI plays noob chess. A small chess book inside, one move evaluation. This .NES file is ready for loading in emulators FCEUX, Nestopia, Jnes, others. The C-code is compiled on cc65 compiler for 6502 cpu.

JS Chess NES is an online browser version, thanks to Nezulator emulator.

otrdiena, 2016. gada 9. februāris

ZX Spectrum 128 chess puzzles

ChessZX is a project for ZX Spectrum 128 (wiki). Highly compressed 8416 computer generated chess puzzles M1,M2,M3.
This .SNA file , .TAP file (download) snapshot is loadable on emulators Speccy, EmuZWin, ZXSpin, others.

The assembler code has been compiled on SjASMPlus. User can redefine cursor keys, Kempston joystick . No mouse, no floppy disk.
Code sources available on GitHub.

jsChessZX - play in online javascript emulator, thanks to jbacteria.retrolandia.net 

svētdiena, 2016. gada 17. janvāris


There are generated chess checkmate positions
(as result of software development, testing, etc., generator tool CM Win32 with source)
- only one first move solution
- count of pieces minimal for each puzzle case

1-move 82005 mate positions - M1 zipped pgn-file
2-move 49504 mate positions - M2 zipped pgn-file
3-move 23733 mate positions - M3 zipped pgn-file
4-move mate only 363 positions - M4 zipped pgn-file or brow-160

ceturtdiena, 2015. gada 10. decembris

otrdiena, 2015. gada 20. oktobris

Offtopic: paskha game for the brain

モアイの秘宝 (Moai no Hihou, 80s MSX)
Try to solve and boost IQ!

sestdiena, 2015. gada 12. septembris

SmallBASIC chess

I like SmallBASIC. So, here is a small chess .BAS program: http://goo.gl/JLuelZ

ceturtdiena, 2015. gada 5. februāris

c64 chess project

Commodore 64 is a hit-console of 80s.

c64hess.d64   - app for solving very known collection of chess puzzles (book) by  László Polgár in 1994. The player checkmates king in 1,2 or 3 moves by using cursor keys and collects +bonus points. 4440 puzzles collection is large enough for good chess training course.

jsC64hess is an online emulated javascript version of puzzles, uses http://c64emulator.111mb.de emulator.
Another online version, thanks to http://vice.janicek.co, but 3Mb large and not so fast, anyway works.

How to play:
  1. install emulator for c64;
  2. download .d64 floppy image file;
  3. open in emulator
  •  VICE (the most advanced);
  •  CCS65 (has video recording inside);
  •  Hyper64 (the fastest c64 implementation).
Project source code available at  https://github.com/Chessforeva/c64hess .
Incredible compiler cc65 brings coding to high c-level for this "8-bit calculator" device, no need to write asm-code. Project One helps painting pictures, LuaJIT and lua-code does data preparation work, c1541 tool creates floppy disk images.