Logic & mazes · Volume 4
Pocket Binairo Hard
300 Hard Puzzles · True 4 x 6 Travel Size · No Guessing, Ever
- Book language
- English
- Format (inches)
- 4 × 6″
Coming soon
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Book details
Pocket Binairo Hard, by Elyas Oulma. Printed puzzle book in English. Read the edition details and check availability on Amazon.
True pocket size: 4 x 6 inches — it disappears into a purse, a glovebox, a carry-on. Binairo — the binary logic puzzle: fill the grid with 0s and 1s — never three alike in a row, as many 0s as 1s in every line, and no two identical rows or columns. Simple rules, deep logic. Level: Hard. 8x8 grids, 18 starting digits. Around five line deductions per puzzle, and the unique-line rule earns its keep. • 300 hard 8x8 binairo grids, two per page, clear large digits • Every puzzle verified — unique solution • Complete solutions at the back • "How the Levels Work" guide — the exact techniques, named • Book 4 of the eight-book Pocket Binairo graded set More pocket logic? Pocket Sudoku and Pocket Suguru carry the same seven-level grading, same pocket size.
Puzzles to play online
Practise the same types of puzzles in your browser.