Tents and Trees Puzzle Unblocked

Tents and Trees Puzzle makes you the manager of a very particular campsite. The trees are already planted on a grid, and each one wants a single tent of its own right beside it. Campers want privacy, so tents can never touch, not even corner to corner. Numbers under the grid and to its right give the tent total for every column and row. The result is a satisfying blend of pairing, spacing and counting. It is Tents from Simon Tatham’s puzzle collection, and you can play it unblocked straight from this page.

Campsite Rules

• A tent must share a side with its tree. Touching only at a corner does not count.
• Every tree must be paired with its own tent. Tents and trees always match one for one, though a single tent may happen to sit beside two trees.
• Tents can’t be neighbours at all, sideways, vertically or corner to corner.
• The number beside each row, and under each column, is the exact tent total for that line.

Satisfy all four and the grid flashes. Grass marks are your notebook: put grass on any square you have proved can’t hold a tent, and the board gets clearer with every mark.

Three preset sizes (8x8, 10x10, 15x15) come in an Easy and a Tricky version, with Custom for anything else.

Tents and Trees Puzzle controls

To do this	Keyboard	Mouse	Touch
Pitch a tent or clear a square	Arrows to move, then Enter	Left-click a blank square	Tap a blank square
Mark grass or clear it	Space	Right-click a blank square	Press and hold a blank square
Grass a whole run of blank squares	Shift + arrows	Right-drag along a row or column	Press and hold, then slide along the line
Grass squares including tents	Ctrl + arrows	—	—
New puzzle, undo, redo	N, U, R	Buttons above the grid	Buttons above the grid

Clearing the Ground First

Good solves usually start with grass, not tents.

Remove the obvious. If no tree shares a side with a square, that square is grass. On a fresh board this alone can cover a third of the grid.

Zero lines. Any line whose clue is 0 is entirely grass. Right-drag along it to fill it in one stroke.

Ring every tent. As soon as you place a tent, all eight surrounding squares become grass. Make this automatic.

Then Place Tents With Confidence

Lonely trees. When a tree has just one free neighbour, the tent goes there.

Exact fits. When a line still wants two tents and only two non-touching spots remain, fill both. If the spots are adjacent, only one of them can be.

Pairing conflicts. If two trees both depend on the same lone spot, only one can have it. One tree must find its tent somewhere else, which often settles a nearby square.

Check the totals often. Errors show up in red, but counting each row yourself as you go keeps mistakes from spreading.

Who Will Like It

This puzzle suits players who enjoy steady, methodical progress. Small Easy boards are relaxing, while a 15x15 Tricky campsite demands patience and careful bookkeeping. Drag-to-grass on both mouse and touch makes the big boards less tedious.

If you like placing objects under adjacency rules, Light Up Lamp Puzzle works in a similar way with lamps and walls. Magnet Dominoes is another counting puzzle with row and column totals.