Some of the cells in the grid are blackened. Fill the remaining cells using L, I, T and S tetrominoes. Each tetromino must be used twice. Tetrominoes may be rotated and/or reflected. This puzzle has more than one solution. You have to find each solution in order to give the correct answer.
Solution code: For each tetromino (in the order of LITS) give the total number of shared cells (cells that a specific tetromino has in common) when all possible solutions are considered.
on 11. October 2010, 22:20 by zhergan
Hi to all. The wording of the solution code is changed a bit to make things more clear...
on 11. October 2010, 08:37 by Luigi
What is an intersecting cell???
@Luigi: Hi Peter, simply give the total number of fields occupied by the same tetromino in all different solutions. I know intersecting cell is a bit weird expression but I meant that while using it.
on 9. October 2010, 12:29 by zhergan
Hi,
The puzzle text changed a bit to include rotation and reflection info about the tetromnioes!