sudoku.el

Play sudoku in emacs

Install:

Use M-x package-install RET sudoku RET to install.

Make sure your MELPA package archive is up-to-date with M-x package-refresh-contents RET

Start playing with M-x sudoku RET

See sudoku.el for more information

Features:

Custom puzzle editor
Printing puzzles (TeX source generator)
Puzzle Solver (simple heuristics + trial and error)
Auto-insert assistance (S1, H1, CC i.e. Constrained Cell)
Step-by-step puzzle deduce (using S1, H1 and CC heuristics)
Nifty pencils (assist for Nishio, Cycles, Loops)
Undo/Redo operations
Optimal (single solution) puzzles generator (very straightforward, but usable)
Board downloader (from websudoku.com and menneske.no)
Save/Load puzzles
Collection of built-in puzzles