Our new product, TLS Brain Training, has now been released. With 14 different puzzle types, there's something for everyone - codewords, jigsaw puzzles, anagrams, wordsearches, tilt mazes and more. Go to our Brain Training site and try it out!

The images in this section were generated directly by Puzzle Tiger's hint feature, which is accessible from the Tools menu. If you are stuck on a particular puzzle, it will show you which technique to use next.

This is a complete reference to the techniques you will need to solve Puzzle Tiger sudokus. The techniques in the "Basic" and "Moderate" parts are all that should be needed to solve puzzles from any book or newspaper. The more advanced techniques will only generally be found in puzzles made by Puzzle Tiger.

Basic Techniques

• Single in Group
• Hidden Singles

Moderate Techniques

• Intersection Reduction
• Naked Singles
• Naked Pairs and Triples
• Hidden Pairs and Triples

Advanced Techniques

• Aligned Pairs
• X-Wings
• Y-Wings
• Single Colouring
• Multi Colouring

Copyright © Adam A. Brown, 2006, All Rights Reserved. www.sudokutiger.com