Sudoku Slate

A quiet place to solve sudoku. Sudoku Slate grades its puzzles by the hardest technique they actually require, not by counting how many digits are showing. Clue count is a poor measure. A grid with 28 clues can be trivial or brutal depending on what it asks of you, so this one asks a better question: what do you actually have to know to finish it? FOUR HONEST DIFFICULTIES Gentle needs only naked singles. A cup of tea. Steady introduces hidden singles. The everyday grid. Sharp calls for pointing and claiming. Severe requires naked and hidden pairs. If a puzzle cannot be finished by reasoning, it is thrown away rather than shipped to you. You will never need to guess, and you will never hit a wall that has no logical way through. ONE SOLUTION, ALWAYS Every puzzle is verified to have exactly one answer before it reaches you. Not usually. Every time. BUILT FOR ACTUAL SOLVING Pencil marks…