Daily Circuit

Loading today's circuit

Set the switches so the lamp lights, then power on to test. Exactly one setting works, and you have six tries. Monday's circuit is the easiest; the weekend's are the hardest.

    How to play

    Each switch on the left sends a 1 (on) or a 0 (off) into the circuit. Gates combine those signals, and the lamp lights when the final gate outputs a 1. Flip switches with the buttons below the board or by tapping the switches themselves.

    Power on to test a setting. Wires carrying a 1 turn green and wires carrying a 0 go dashed, so even a wrong try tells you something. Read the gates from the lamp backwards and you can often solve it on the first try.

    • ANDOn only when both inputs are on.
    • OROn when either input is on.
    • XOROn when exactly one input is on.
    • NANDThe opposite of AND: off only when both inputs are on.
    • NORThe opposite of OR: on only when both inputs are off.
    • NOTFlips its one input.
    Today's circuit as text

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