CREASING SUDOKU
Fill in the grid so that every row, column and 3x3 box contains the digits 1 through 9. Numbers going along grey lines must be in increasing/decreasing order.
When you have completed the puzzle, submit the sum of all the numbers in the highlighted squares to iletisim@bilkent.edu.tr.
E-mails 17 and 18 get a free game of bowling at Roll House.