Place by Product

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Rules[edit]

Place by Product Example Set.png Place by Product Example.png Place by Product Example Solution.png

Place the given set of shapes into the grid. Shapes do not touch each other, even diagonally. Rotations and reflections are considered the same shape. The shapes divide rows and columns into groups of adjacent unoccupied cells. The numbers outside the grid indicate the multiplicative product of the sizes of the unoccupied groups in the corresponding row or column.

(Rules and example from WPC 2017/Round 2 IB)

History of the puzzle[edit]

Invented by Ravi Kumar Macherla (India). The first puzzle was posted to The Art of Puzzles blog in May 2014.[1]

Appearances in the past WPCs[edit]

References[edit]