Mr Bit

Mr Bit
A calm, classic game of KAKURO (cross-sums) on a warm crossword page. Fill the white squares with digits so every run adds up to its clue - like a crossword made of numbers. Simple to learn, satisfying to master, a few quiet minutes whenever you have them.

HOW IT PLAYS
The grid is split into dark clue blocks and white input cells. A number in the top-right of a block is the total for the white run running to its right; a number in the bottom-left is the total for the run running down. Tap a white cell, then a number from 1 to 9, to write it in. Every run must add up to exactly its clue, and no digit may repeat inside the same run. Each white cell sits in one across run and one down run at once, so use the overlap to pin every digit down.

ALWAYS SOLVABLE, ALWAYS UNIQUE
Every grid is built from a real filled solution first, then checked by the game's own solver to have a single unique answer. No guessing and no dead ends by design - just clean, logical deduction.

TEN GRIDS, GROWING CHALLENGE
Ten deterministic levels that grow from a tiny four-by-four warm-up to a dense cross-sum grid. Later puzzles add longer runs and tighter sums, rewarding players who think a few cells ahead.

STARS, COINS AND A SHOP
Finish under par with no wrong digits for up to three stars, and earn coins on every grid. Spend them in the shop and claim a small daily gift. Everything is earned in-game - no pay-to-win.

MADE TO RELAX
Toasted paper, crisp printed cells and no ticking pressure - easy, tidy, one-thumb number puzzling.