SUPER SUDOKU
NO.839
Test your mental agility with our challenging giant Sudoku and you could win a €15 book token.
Send your solution to: Sudoku No.839 The Irish Mail on Sunday, PO Box 5332, Cardiff Lane, Dublin 2. Include your name and full address. The winner of Super Sudoku No.838 is Paula Butler, Templetouhy Thurles, Co. Tipperary.