Normal sudoku rules apply. All sevens and sixes located throughout the grid MUST connect with at least one other of the same digit via a knight’s move. No other digits have any knight’s move constraint. Cages must add up to a number divisible by seven. Along a thermometer, digits increase from the bulb end. The total sum of all numbers on the thermometer must be divisible by 7. 6's cannot appear in thermometers or cages.