In this puzzle each empty square needs to be filled in with a different positive integer 1 to 40.

The rules are the same as the first sequence fill in and are:
Each string of adjacent squares needs to form an arithmetic sequence.
A horizontal string of squares increases from left to right.
A vertical string of squares increases from top to bottom.

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This is the worst case of the problem with IE (at least 6.0). The instructions do not appear until you scroll away from the top of the puzzle and back again, to see the wording of the puzzle in that portion.

So if you're looking for the instructions, scroll away and back again.

Posted by Charlie on 2007-11-30 10:56:30