Sudoku is Killer Dots of the Knight by Chip Sounder, App variant is KILLER


Place the digits 1-6 in each row, column and 2x3 box without repetition. Cells separated by a knight's move (in chess) cannot contain the same digit. A clue outside the grid gives the sum of the digits on the indicated diagonal. Digits may repeat (if allowed by other rules). Digits in a dotted cage sum to the given total. Digits separated by a black dot have a 1:2 ratio. Digits separated by a white dot are consecutive.