Catalogue · Logic grid puzzles

Logic Puzzles: Fiendish Puzzles

All 60 logic grid puzzles use every trick we have at once: conditional clues, one false clue per puzzle, and groups where only some statements are true. Still solvable by pure logic — just not gently. Clear clues, roomy grids, and a friendly how-to-solve guide.

Coming soon to Amazon.

Stuck on a puzzle?
Front cover of Logic Puzzles: Fiendish Puzzles

What is inside

  • 60 logic grid puzzles using conditionals, lies and counting together
  • Step-by-step guide teaches you exactly how to solve
  • Every grid on a page of its own facing its clues, printed full size
  • Every puzzle has one solution, reachable by logic alone — no guessing
  • Complete answer key included

The book itself

Difficulty
Fiendish
Puzzles
60
Trim size
8.5 × 11 inches
Binding
Paperback, printed on demand
Pages
132
Checked
Every puzzle verified before print

What a logic grid puzzle book promises. Exactly one solution, reachable without guessing, with no clue you could remove. How we check that →