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Introduction to Pin Cracker

Pin Cracker asks you to unlock secret codes by entering different four digit sequences and then marks each digit in green or yellow. A green mark shows a number matches its spot. A yellow mark shows a correct number in the wrong place.

Each guess gives insight into the right combination as you rule out wrong digits and swap the correct ones. With every new attempt you shrink the pool of possibilities and edge closer to victory.

Keep green marks locked in their slots. Move yellow digits into unused positions on the next guess. Repeat that step until every digit turns green and the code unlocks.