How many coins do you need to move in the diagram on the left to make it look like the diagram on the right?
+1005 Only three, I believe.
This is the minimal amount.
So in the center, there is a 7-ball pattern in both...
O O
O O O
O O
Looks like that
So we have for the first one
O O O O
O O O
O O
O
And if we take away those at 10, 2, and 6 o'clock we have
O O
O O O
O O
and if we add the OOOs
we have
O
O O
O O O
O O
O
O O
O O O
O O O
O
O O
O O O
O O O O
Wonderful!
So that's the smallest I can thinjk of.
