Samegame (Jean-Charles Meyrignac)Discuss about this problem
start with a 4-colored n*m rectangle.
Remove monocolored connected regions of size s>1. Score increases by s*s.
Collapse the holes by moving the pile above them downwards.
Continue until all monocolored connected components have size 1.
When all square-cells are removed this way, you get a bonus of x.
This can be a 2-part-contest as in pancakes : first generate difficult configurations in part 1, then let people solve them in part 2
Play the game on :
http://www.digitalpostma.com/samegame/indexold.html
First part: submit several hard-to-solve puzzles.
Second part: solve all submitted puzzles with the largest possible score