-Normal sudoku rules apply. 
-Cells that are a chess knight's move apart must no contain the same digit.  
-Digits along the indicated diagonal must sum to the given total 
-Cells separated by a black dot must be in ratio 1:2. 
-Cells separated by a white dot must be consecutive. 
-Numbers must not repeat in a killer cage. 
-Each digit 1 through 9 must appear only once on the diagonal. 
-Digits along a between line must be between the digits on the circled ends of the line. 
-Digits in equal distance from each end of a line must be equal. 
Sudoku: 
- F-puzzles  
- SudokuPad  
Solution code: Row 8 (9 digits)
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