Tree-Tent is a solitaire logical game in which your mission is to locate all the tents in the grid. Each tree is exactly connected to only one tent. A tent can be found in a horizontally or vertically adjacent square of the tree. Tents are never placed adjacent to each other, neither vertical, not horizontal, not even diagonal. The numbers outside the grid gives the total number of tents in the corresponding row or column.
Tree-Tent Solving Tutorial