KILLER SU-DOKU FUTOSHIKI

Killer Su-doku is based on the traditional grid and every column, every row and every 3x3 box must contain the digits 1 to 9. But the dotted squares must be filled with numbers that add up to that in the left corner.

Solutions for all su-dokus in next week’s Sunday Mirror

Insert the numbers one to five in each row and each column, making sure that no number is repeated. The only symbols to guide you are the “greater than” (>) and “less than” (<) signs.