How to Solve a Pentomino Puzzle: Area, Corners and Colours
Fill a board with the 12 five-square pieces. Check area and colour, mark tight corners, place awkward pieces first, then try a worked and a practice box.
Riddle10 blog
Riddle10 blog
Fill a board with the 12 five-square pieces. Check area and colour, mark tight corners, place awkward pieces first, then try a worked and a practice box.