Normal Sudoku Rules Apply
Cells separated by a V sum to 5. Not all Vs are given.
Cells separated by an X sum to 10. Not all Xs are given.
Cells separated by a black dot are a ratio of 2:1. Not all black dots are given.
The puzzle can be played at F-Puzzles here!
The puzzle can be played at CTC here!
Solution code: Bottom Row followed by the value of r1c4
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