Complete the 9×9 grid without repeating numbers in rows, columns or blocks.
Guía interactiva
Three ideas are enough to begin. The guide opens automatically only the first time and can always be reopened from How to play.
Thick lines separate the nine blocks. Fixed numbers are white and cannot be changed. Every row, column and block must contain 1 to 9 without repetition.
Below the numbers you will find Notes, Erase, Undo, Redo, Auto-notes and Hint. Enable Notes to write small candidates before deciding.
Choose a number below the board or use the keyboard. Your entries appear blue, clues white and conflicts red so you always know what you changed.
Resuelve Sudoku respetando además las sumas de las jaulas.
Sudoku con regiones irregulares en lugar de cajas rectangulares.
Sudoku en el que las dos diagonales principales también deben contener todos los números.
Sudoku con pistas que suman los números situados entre los extremos 1 y N.