| |
 Numbers in (red) are total possible solutions for this shape.Notes:Level 4, the 1x6's, is perhaps the toughest level of the flat shapes. Particularly the first one, the 1x6x6 with only a single solution and no sub shapes within. Quite the beast! This 1x6x7 and 1x6x8 use a 1x3x3 at the corner. They can also be solved using a 1x3x4 in the corner.
| |
