Estrategia
Todos los artículos de Estrategia, primero los más recientes.
How to Solve Hard Sudoku Puzzles Without Guessing
Stuck on hard sudoku? The mental shift, the pencil-mark system, and six techniques that crack difficult puzzles — no guessing required.
How to Solve Sudoku Faster: 7 Habits of Speed Solvers
Cut your sudoku solve time with seven proven habits — scanning rhythm, digit ordering, keyboard flow — plus real benchmark times by difficulty.
7 Sudoku Mistakes That Keep You Stuck (and How to Fix Them)
Guessing, skipping notes, scanning only boxes — the seven mistakes that stall improving players, with the exact fix for each one.
The 5 Sudoku Techniques Every Beginner Should Learn First
Skip the overwhelm. Master these five techniques — scanning, naked singles, hidden singles, cross-hatching, and pointing pairs — with worked grid diagrams for each.