Dots vs Missing Digits

Dots is a fast strategy game where one move can flip the entire board. Take turns charging the cells you control. Reach critical mass and a cell explodes into its neighbours, capturing them and setting off chain reactions. Build the right position, spot the cascade, and take every dot on the board. PLAY YOUR WAY • Find an online opponent in Quick Play. If no player is available, Dots may match you with an AI opponent. • Challenge a friend with a private room code. • Practise against adjustable AI or play pass-and-play on one device. • Choose Classic, Long, or Marathon boards. • Play Casual, Blitz, or Bullet time controls. BUILD YOUR RECORD • Create an optional account for rated games. • Climb the global leaderboard. • Add friends and send challenges. • Review completed games and request optional AI coaching. Dots is free to play and contains no advertising. You can start as a guest without creating an account.

Uncover the hidden digits by reasoning, not guessing. 4■2 + ■8■ = 12■5. Guessing gets you nowhere. But follow the carry from the ones column, and the answer narrows to exactly one possibility. FUKUMEN does one thing: missing-digit arithmetic, done beautifully, forever. ■ Features - Endless puzzles, generated on your device From simple addition to full long multiplication with three partial-product rows. You will not see the same puzzle twice. - Exactly one answer, always Each puzzle starts as a completed sum, then digits are hidden — but only up to the point where a second answer would become possible. Every puzzle is verified before it reaches you. No unsolvable boards. No ambiguous boards. - Four difficulties Easy and Normal are addition. Hard and Oni are long multiplication. At Oni, 19 of the 26 cells are blank. - Today's puzzle One puzzle a day, the same one for everyone. Streaks and a calendar keep your history visible. - A real long-form layout Chalk on a blackboard, set vertically the way you'd write it by hand. Tap a blank, type a digit. The board scales up when the numbers are short. - Quiet help Columns that can't work out are tinted, gently — you can turn this off. And if you're truly stuck, a hint opens a single cell. - Records Puzzles solved, streak, average time, best time per difficulty. ■ Who it's for - Sudoku and crossword solvers looking for something that actually uses arithmetic - Anyone who wants to deduce rather than drill - Parents and kids working through missing-digit problems for entrance exams - People building a small daily thinking habit - Anyone who needs a puzzle that works with no signal — trains, planes, anywhere