888Casino
A calm, clever logic puzzle built around one neat idea: corner sums. Fill each 3x3 block with the numbers 1 to 9, and make every circle equal the sum of the four cells around it. Simple to learn, quietly addictive to master - a few thoughtful minutes whenever you have them.
HOW IT PLAYS
Each 3x3 block holds the digits 1 through 9, each used exactly once. An amber circle sits at each of the four inner junctions, and its value is the total of the four cells that touch it. Some cells are given to start you off. Tap an empty cell to select it, tap a number on the pad to place it, and tap erase to clear. A circle turns green when its four cells add up correctly, so you always know where you stand.
ONE TRUE SOLUTION, ALWAYS FAIR
Every puzzle is generated from a real valid layout and then checked to have exactly one solution, so a clean answer always exists and the deductions stay honest. No guessing required - just careful counting.
TEN LEVELS, GROWING CHALLENGE
Ten deterministic levels that rise from a single friendly block to larger boards of several linked 3x3 blocks, each with its own 1-9 rule and its own corner sums. Later levels reveal fewer givens, rewarding players who plan their sums ahead.
STARS, COINS AND A SHOP
Solve a level with no wrong entries and beat the par time for up to three stars, and earn coins on every board. Spend them in the shop and claim a small daily gift. Everything is earned in-game - no pay-to-win.
MADE TO RELAX
Soft plum tiles, warm amber circles and no ticking pressure - easy, tidy, one-thumb number puzzling.
888Casino - relaxing corner-sum number puzzle