250 Tridoku Sudoku Puzzles: Very Hard Triangular Sudoku Puzzles

by Mindful Puzzle Books

The puzzle consists of nine large triangles; the numbers 1 through 9 must be placed into the triangular cells of each large triangle. Also, the numbers 1 through 9 must be placed in the three legs of the inner shaded triangle and in the three legs of the outer shaded triangle. No two neighboring cells may contain the same number.

• Format: Paperback
• Language: English
• ISBN: 1726454800
• ISBN13: 9781726454803
• Release Date: September 2018
• Publisher: Createspace Independent Publishing Platform
• Length: 146 Pages
• Weight: 0.45 lbs.
• Dimensions: 0.3" x 6.0" x 9.0"