Ledger Cross Sums is a clean Kakuro-style number puzzle designed for focused logic solving.
Fill the white cells with digits from 1 to 9 so each horizontal and vertical run matches its sum clue. Digits cannot repeat within the same run, so every move requires careful deduction.
Play through 120 unique puzzles across four difficulty packs: Easy 6×6, Medium 8×8, Hard 10×10, and Expert 12×12. Each pack includes 30 puzzles, with best times saved for every grid.
A daily puzzle mode lets you solve a new challenge by date and build your streak. Helpful tools include candidate notes, undo, live conflict highlighting, mistake checks, limited hints, a timer, a tutorial, and a How-to guide with a combination table.
Enjoy a calm paper-and-ledger style built for pure number logic.