Sudoku

Two-By-Two Grids With Four Values

Use logic to solve a two-by-two Sudoku puzzle

This is the easiest form of Sudoku. It only uses four unique values (numbers or letters) and each board can be solved in just a handful of steps. Like all standard Sudoku puzzles, no math is required, so letters of the alphabet can be used instead of numbers.

A full set of solution steps follows the answer page.