THE 5-SECOND TRICK FOR SUDOKU HARD - HARD SUDOKU

If 1 is genuine, then the other gets difficult. The objective is to test these sets and get rid of that candidate from any cells while in the grid that would become difficult under each.​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​â€