Logic Puzzles for High School

Are you a fan of amazing Japanese puzzles?

This is a Puzzle book that will test you to the limits

Santoitchi ("Sandwich") is a logic puzzle invented by Naoki Inaba (Japan). A rectangular or square grid contains numbers in some cells. The task is to blacken some empty cells according to the rules:
- All white cells must be divided on regions having the size of exactly three cells.
- Two black cells must not be orthogonally adjacent.
- Each region contains a number.
- A number indicates how many black cells share an edge with that region.

The book comes complete with the solutions at the back, so you'll always know if you got it right, or can find the solution if you are really stuck for the answer.

Don't delay. Get a copy today