Divide the grid into different hexagonal tetrominoes. Clues outside indicate how many tetrominoes are in the row.
(Example (4 tetrominoes) from WPC 2018 IB)
History of the puzzle
Can be seen in WPC 2010/Round 9. Author of the puzzle is unknown.
This could be seen as a hexagonal variant of Pentomino Dissection with an addition of outside hints.
Appearances in the past WPCs
- WPC 2018/Round 4 by Jan Novotný