Very Easy — logic-grid deduction puzzle
Gilbert, Mabel, Roland and Cicely come in from the sea just in time to collect their hut keys and towels before the beach closes.
The afternoon sun is sinking low over the beach. Gilbert, Mabel, Roland and Cicely have just run out of the sea, dripping wet and shivering. Their hut keys hang in a row on a little wooden rack by the steps, from the first key along to the fourth, and a pile of towels sits folded beside it. The beach attendant wants to lock up soon, so every key and every towel has to go back to the right bather.
Read the clues, rule out what cannot be, and prove what must be. Every GRIDIGMA puzzle is verified by a solver that shows the reasoning behind each step, so a solution is never a guess.
Logic grid puzzles: how to solve them, with a worked example