Level 3 sudoku puzzles on this website can be solved using advanced techniques, such as X-wing, XY-wing, XYZ-wing, skyscraper, kite, swordfish, and jellyfish. No divide-and-conquer is needed.

This page is especially for skyscraper pattern only. For training with other patterns, check the links below.

Daily sudoku (X-wing training).

Daily sudoku (XY-wing training).

Daily sudoku (XYZ-wing training).

Daily sudoku (Kite training).

Daily sudoku (swordfish training).

Daily sudoku (jellyfish training).