KEYCAST: Every Key Becomes the Next Lock

KEYCAST is an original portrait-first tactile locksmith puzzle. Choose Face or Reverse, then drag the file from left to right through five engraved tooth heights. The key opens the current chamber, but its removed brass is rotated through that chamber's published rotor and spacers to become the five pins of the next lock. A locally valid key can therefore leave the final commission globally miskeyed.

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