You are required to link the symbols:
- No crossing.
- No empty cell.

You may ask for help and reveal one line, but it costs 15 seconds per cell.

This version automatically computes grids, 3 sizes are available. Several solutions may exist for one grid.

You can choose the color of good/bad cells.

Update Description:
v1.1 (20-01-2008):
- Better management of clicks/moves.

v1.0 (06-01-2008):
- Creation.