400 Tridoku Sudoku Puzzles: Hard Triangular Sudoku Puzzles (Tridoku Puzzles)

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.

• | Author: Mindful Puzzle Mindful Puzzle Books
• | Publisher: CreateSpace Independent Publishing Platform
• | Publication Date: Sep 01, 2018
• | Number of Pages: 230 pages
• | Language: English
• | Binding: Paperback
• | ISBN-10: 1726458032
• | ISBN-13: 9781726458030