If this is the Championship " Jigsaw " Sudoku - There's the following update on the website
The rule is: Fill in the numbers 1-9 in every column, row and every jigsaw shape. Any cell that has a round jigsaw border can contain only "round" numbers - that is, 3, 6, 8 or 9.
Under these rules this puzzle is correct and has only one solution as published. Again our apologies for the omission. If you don't believe me, believe Thomas Snyder whose comment is posted below.
Michael Harvey, T2 features editor
Have your say
I initially thought the puzzle did not have a uniques solution. It was only after I reviewed the "ears" of the jigsaw pieces that the light finally dawned. The "ears" are in two groups - those four in the top left and the four in the bottom right. Each group has to contain the same number otherwise duplicate numbers will occur in the jigsaw pieces. I then went on to re-solve the puzzle but without using the rule about "rounded" numbers in the round ears. It is possible, but elevates the puzzle to a higher level of difficulty.
Guy, Udon Thani, Thailand