Note: In the article below, I have hidden the ten move solution for the 4 x 4 grid.
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The Gasp is a small puzzle game that is a mix of Reverso and Othello. You have a board with 16 cards forming a 4 x 4 square. The goal is to turn over all of them according to one rule: When you point to a card, all 8 of its neighbours are turned over except for it. Can you turn them all over?