Mini brain teasers

These mini puzzles fit in a box the size of a matchbox: a bent nail to separate, a heart to free, rings to unhook, a pyramid to rebuild, a mosaic cube, a colour sudoku. Each box holds a single puzzle, in metal or wood. Slip one in a pocket for the train or the waiting room.

They are published by Bartl, in its series of small patience games in illustrated boxes. Models available: Sawn pyramid, Olympic games, Nail, Snake puzzle, Car puzzle, Geronimo mosaic, Magician, Colour sudoku, Captive heart, Pyramid, Hooked rings. You choose the model when ordering.

For children and adults who like working things out. Small parts: not suitable for children under 36 months.