SeaBe Sumrel

A bright cross-sum number puzzle in mint, lilac and sunshine colours, set out like a learning path. Here is the school report, subject by subject. Subject: Adding up Fill every white tile with a digit from 1 to 9. A dark tile shows the total of the run to its right above its diagonal, and the total of the run below it underneath. Digits never repeat inside a run, and each grid has exactly one answer. Comment: steady progress along a winding path of 30 round grids in 5 units, Warm-up 4×4, Steady 5×5, Middle 6×6, Deep 7×7 and Expert 8×8. Each grid keeps its fastest time. Subject: Neatness A clean solve gives three stars. Up to two slips or hints give two, and more than that gives one. Comment: Notes for pencil marks, Erase, Undo and Hint sit above a keypad of 1 to 9. Tapping a tile highlights its runs, and clashes can be marked in coral when a digit repeats or a total goes wrong. Subject: Attendance Today's grid is a 6×6 puzzle, the same for everyone on that date. Solving it keeps a day streak alive, shown as a row of weekday circles. Subject: History of numbers A quiz asks 10 questions per round from 24 real facts, with four answers to pick from and a note after each one: who first printed the equals sign, why 1729 is famous, the Lo Shu magic square and more. Overall record Stats show path progress as a ring, plus grids solved, stars, solves without hints, dailies, longest streak, fastest grid and recent solves. Twelve badges, from First Sum to Whole Path and Seven-Day Streak, mark the milestones. Note at the bottom of the report Soft aurora light breathes behind the screens. This animated background can be switched off in Settings, next to haptics, clash marking, a how-it-works page and a progress reset. The game plays fully offline, in portrait or landscape, with no account needed.