The big book of Trigons: 300 puzzles

By djape

The Big Book of Trigons - 300 Puzzles: Three Times the Original Collection

After the huge reception of the first Trigons book, this second volume delivers three times as many puzzles - 300 in total - in a bigger format for more comfortable solving.

Trigons are DJAPE's original puzzle invention: fill each triangle so that the digits on each side add up to the sum in the corner circle. They are not Sudoku - they require a completely different kind of numerical thinking.

What's Inside300 Trigons puzzles across all difficulty levels7.5 x 9.25 inch larger format for comfortable solvingThick, quality paperSolving instructions and all solutions300 Puzzles. 3 the Original. The Triangle Challenge Grows.

By DJAPE - PhD in Computer Science, Washington Post puzzle contributor since 2006, and the creator of Trigons. A substantial and original gift for anyone who loves number puzzles and wants to try something genuinely new

• Format: Paperback
• Language: English
• ISBN: 1535086661
• ISBN13: 9781535086660
• Release Date: July 2016
• Publisher: Createspace Independent Publishing Platform
• Length: 362 Pages
• Weight: 1.65 lbs.
• Dimensions: 0.8" x 7.5" x 9.3"