or press the Delete key on your keyboard.Step back through your actions: Click 
, then select Autofill Notes. Notes representing possible numbers appear in empty squares, based on all filled squares at that moment—givens and your answers (even if incorrect). You can still add and delete notes manually. Using Autofill doesn’t affect stats or streaks.
Play with or without notes: Click 
, select Settings, then select Show Conflicts. When you enter a number that already appears more than once in a block, row, or column, the squares’ bottom-right corners are marked with red triangles.
Mark incorrect answers as you enter them: Click , then select Check Square or Check Puzzle. A red slash indicates incorrect answers. Checking a square or puzzle doesn’t affect stats or streaks.
Identify a solvable square: Click , then select How to Play.
Restart your puzzle
If you’d like a fresh start, you can clear a puzzle’s answers and reset the timer.
Go to the News app
.Click
Solve Quartiles puzzles in News on Mac