Feb 14, 2026
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Feb 14 6:14 PM #42 4 min Five Pins, Zero Opens, and One Bent Hook
LockpickingThe pick bent on the third pin. The lock remains locked. Day 1 goes to the padlock.
code-a-day
Picking Through Possibilities One Pin at a Time
Backtracking 🔗 LockpickingA lock cylinder and a recursive algorithm share the same dirty secret: sometimes you have to undo progress to make any.