Number Fortress: Quick Math

Solve the grid, stop the clock, claim the record. Fill every row and column to hit its target sum, find the final keystone cell, and set your best time under a calm night sky. 100 handcrafted levels, a gentle tutorial, per-level Game Center records, and a ghost replay of the record run. Hints are optional — runs that use them never touch the leaderboard, so the competition stays honest. No ads.