| Management number | 231710334 | Release Date | 2026/06/18 | List Price | US$10.30 | Model Number | 231710334 | ||
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The Big Book of Trigons — 300 Puzzles: Three Times the Original CollectionAfter 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! Read more
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