Deductoid is a simple logic puzzle that should be suitable for just about anyone
Here's the Rules page: http://timns.dcmembers.com/DeductoidHelp.html Overview:
Deductoid Logic Puzzle
Detailed Info:
Hey folks, this is a game I wrote a while ago. It's a simple logic puzzle that should be suitable for just about anyone of any age: you can vary the difficulty level as required from pretty simple to very taxing.
Every puzzle can be solved from the clues provided, and the game is pretty self-explanatory, but I also uploaded a zipped PDF document which explains how to play, and the rules of logic you need to apply, in order to solve each puzzle.
Features:
* 999,999 puzzles at each difficulty level
* Hi-score table to track and compare your performance with friends, family and yourself
* Sharpen up the old brain while still having fun
The object of the game is to work out, from the clues provided, where each tile should be positioned in its particular row and column.
You do this by using the clues to help you eliminate certain tiles from certain positions until you are left with only one possibility – the correct solution.
There are two types of clues – horizontal and vertical. Horizontal clues deal with the relationship of tiles across the playing area. Vertical clues deal with tiles on a per-column basis.
http://timns.dcmembers.com/Deductoid.html