My goal was to create a variant sudoku puzzle that required solving it entirely in color before filling in any digits. This is a Nonconsecutive Antiknight Antiking Thermo Sudoku.

In other words, the rules are as follows:

Normal sudoku rules apply (the digits 1-9 must appear exactly once in each row, column, and box). Orthogonally adjacent digits cannot be consecutive. Digits a knight’s move (in chess) away cannot be the same. Digits a king’s move (in chess) away cannot be the same. Along thermometers (gray lines), digits must increase from the bulb to the tip. Cells that are colored the same contain the same digit.