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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 killers. It includes the following items:

Basic Techniques

• Singles in Groups and Cages
• Single Possibility in Cage
• Naked Singles
• Hidden Singles
• Combination Culling
• Superset Culling
• Intersection Reduction
• Naked pairs and triples

Advanced Techniques

• Innies and Outies
• Extended Innies and Outies
• Multi-Group Innies and Outies

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