blackflip - food for your brain! Draw a line in the given grids and make sure the line does not intersect with itself. After this only operation, all the grids on the line flip - the original white grids become black, while the original black ones become white. The goal of the game is to make all the grids on every horizontal line in the same color - either black or white. Blackflip.org~Site InfoWhoisTrace RouteRBL Check
