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SOLO-012 · Advanced Mastermind

EXPERT

The Silent Lock

Find the only ordered code of 5 digits.

Materials: Pencil, gum and gridded paper; no commercial game required.

Rules you need

The puzzle

The table reads from top to bottom. The proposals are tests and are not already confirmed number positions.

Write down the possible multiplicities of each number, then look for arrangements compatible with all scores.

Coordinates: lines from top to bottom, columns from left to right.
L / C1234
1TestGuessExact matchesMisplaced matches
212254313
324105010
437030212
543743311
Why this level?

The reference method leaves 1 multi set(s) after solving multiplicity constraints; then it is necessary to cross their arrangements with all position constraints. Repeats prevent treating the numbers as a simple set. The reference method combines occurrence counting and configuration removal.

Your workspace

Write down your assumptions separately from deductions you have proved.