# JSudoku 1.5

A helper, solver and generator for Killer Sudoku, Samurai, Jigsaw Sudoku as well as vanilla Sudoku and many other variants.

JSudoku is written in Java and is compatible with Microsoft Windows, Mac OS X and should also work under Linux and other Java enabled desktop systems.

Copyright (C) 2006-2008 Jean-Christophe Godart. All rights reserved.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

## Contents

- Installing JSudoku
- The window
- Using the mouse
- Using the keyboard
- The menus
- Solvers alias Techniques
- Simple Techniques
- Fishes & Single Digit Techniques
- X-Wing, Swordfish, Jellyfish, Squirmbag...
- Skyscraper
- Two String Kite
- Turbot Fish
- Turbot Chain alias X-Chain
- Generalized X-Wing, Swordfish (222), Jellyfish (2222)...
- Finned and Sashimi X-Wing, Swordfish, Jellyfish...
- Empty Rectangle
- Grouped Turbot Fishe and Chain alias Weak Colors, Hinge
- Grouped X-Wing, Swordfish (222), Jellyfish (2222)...

- Wings
- XY-Chains, Loops & Almost Locked Sets
- Uniqueness Techniques
- Techniques for Sudoku-X, Jigsaw, Windoku, Gatai...
- Techniques for Greater/Less Than & Non-Consecutive
- Techniques for Killer Sudoku
- Innies/Outies Techniques for Killer Sudoku
- Advanced Techniques for Killer Sudoku
- Techniques for Square Wisdom