Tents

Game Rule: Place tents in the empty squares in such a way that: no two tents are adjacent, even diagonally; the number of tents in each row and column matches the numbers around the edge of the grid; it is possible to match tents to trees so that each tree is orthogonally adjacent to its own tent. Click in a square to place or remove a tent. Right-click to mark a square as empty (not a tent).