Normal sudoku rules apply.
Numbers along a line must be between the numbers on the circled ends of the line (e.g., if R2C6 is 7 and R2C9 is 3, then R2C7 and R2C8 must be numbers between 3 and 7).
Grey circles are odd numbers and grey squares are even numbers.
Cells separated by a 'V' must sum to 5 and cells separated by an 'X' must sum to 10. Not all V's and X's are given.
Online Solving Link (F-Puzzles)
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