Eight rows. Eight columns. Just zeroes, ones, and a rather satisfying moment when it all clicks.
Fill the 8×8 grid with 0s and 1s. Each day's puzzle has exactly one solution, and you can solve it using logic.
Each row and column must have exactly four 0s and four 1s.
Three matching digits in a row or column aren't allowed. Two in a row is fine.
Your results are kept privately in this browser. No account and no tracking.
From your old Bindle address, use the link below to open the new one with your progress. If you're moving devices, copy the code instead and paste it on the new address.
Another day, another brilliant bit of logic.