5 puzzles

Logic puzzles

Deduction puzzles where every move can be reasoned out. No guessing needed if you read the clues carefully.

1. 01Mine SweepOpen every safe square on a 9 by 9 field without touching one of the ten hidden mines.Logic5 min
2. 04Code BreakerFind the hidden four-digit code in ten guesses, using the feedback after each attempt.Logic5 min
3. 11Eight QueensPlace eight chess queens on the board so that no queen can capture another.Logic5 min
4. 16Two JugsMeasure out an exact amount of water using only two unmarked jugs of different sizes.Logic3 min
5. 19River CrossingFerry a wolf, a goat and a cabbage across a river in a boat that carries only one of them at a time.Logic2 min

See all twenty puzzles