Lock 3 of 5 · 1 person is through
Find the code every card says yes to
Set the dials and ask the cards. Each card answers yes or no for your code. Its title says what it looks at, not what it wants. The safe opens when all four say yes.
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10 questions left of 10
- Card A Which dial alone is largest Not asked
- Card B How many dials are even Not asked
- Card C Dial 2 compared with dial 4 Not asked
- Card D How many dials show 1 Not asked
Your progress saves on this device.
Stuck?
A nudge asks you a question instead of giving the rule. Three per lock, never counted against you.
New to this kind of lock? Try the warm-up.