Why Does The Number Turn Red In Sudoku? [Solved]
Hola, iam Leesa Hamilton, Wishing you a productive day. Why Does The Number Turn Red In Sudoku? [Solved] There are only three empty spaces remaining (now that we’ve placed the 2 and 6, in blue), and we know that the numbers must be 3, 4 and 5. To the left and the right, we can see two number 5s (circled in red) which means that the number 5 must be in the upper left space of the top center square (marked in blue)....