Aquarium
Einstein
00:00
Classic
Einstein Aquarium — what to expect
Einstein Aquarium shares expert’s 12×12 grid and packs 16 to 20 aquariums into it, against expert’s 12 to 15. The grid stops growing here on purpose: the difficulty comes from how tightly the aquariums interact, not from more cells to count. Deduction chains are long, and every puzzle is verified solvable through logic alone.
How to play Aquarium
- The grid is divided into tanks. Pour water into them.
- Water settles level: inside one tank it fills from the bottom up, never leaving a gap.
- So if a cell holds water, every cell of that tank below it holds water too.
- The number beside each row and above each column counts its filled cells.
- A 0 means that line stays completely dry. A number equal to the line length means it all fills.
- Every puzzle has one solution, reachable by logic alone.