Mars and Venus

From WPC unofficial wiki

Rules[edit]

Put signs of Mars (♂) and Venus (♀) into the grid. Signs cannot be rotated or reflected. Cells occupied by signs cannot share an edge.

Numbers at the left and in the bottom show the number of Venus’s crosses in the corresponding row or column. Numbers at the right and on the top show the number of Mars’s arrows pointing to that number.

(Rules and example from WPC 2015 IB)

History of the puzzle[edit]

First appeared on WPC 2015/Round 10. The author of the puzzle was Andrey Bogdanov (Russia).

Appearances in the past WPCs[edit]