Catalogue · Logic grid puzzles
Spy Puzzles: Devious Puzzles
Spy logic puzzles: work out which agent was in which city, carrying what — then expose the double agent. The 80 assignments teach three new kinds of clue — conditionals, a planted lie, and statements you have to count — one at a time, with room to practise each, then put all three to work together at full size. Deduction only, never guesswork.
Coming soon to Amazon.
Stuck on a puzzle?
What is inside
- 80 spy logic puzzles that teach three new clue types, then combine them
- Agents, gadgets, and cities laid out on a clean solving grid
- Step-by-step guide teaches you exactly how to deduce
- Every case has one solution, reachable by logic alone — no guessing
- Full dossier key: who the mole is, where, and with what
The book itself
- Difficulty
- Devious
- Puzzles
- 80
- Trim size
- 8.5 × 11 inches
- Binding
- Paperback, printed on demand
- Pages
- 140
- 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 →