<![CDATA[Cross out]]>1) Cross out 5×5**
In the square below, cross out numbers until the sum is 15 in every row and column:
Cross out 2013-11-09 5x5 exercise

2) Cross out 7×7**
In the following square, cross out numbers till you the sum is 15 in every row and column:

Cross out 2013-11-06 7x7 exercise

This type of puzzle was probably invented by Rita Hovestad or Marenke Wiersma, editors of Sanders Brainteaser no 5.

You can check your solution here for no 1 and here for no 2

A new puzzle is published every friday. The solution is generally published one week later. I welcome your reactions on these puzzles: are they too easy, too difficult, are trhere any multiple solutions? How long did you need to solve it?

]]>