12×12 數獨

12×12 Sudoku enlarges the classic to a grid of twelve 3×4 boxes using the numbers 1 to 12. The extra rows and columns mean more candidates per cell and longer chains of logic, so the techniques you know from 9×9 — pointing pairs, box/line reduction — get a heavier workout.

It is a strong step up for solvers who find the standard grid too quick but are not yet ready for the 16×16 marathon.

規則 · 學習