Are these evil tents and trees free to print?

Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up.

Does every puzzle have one solution?

Yes. Every puzzle is generated and checked so the trees and the numbers fix exactly one placement, verified before it prints. The answer is on the second page.

Free printable

Evil Tents and Trees

An evil Tents and Trees is a 14 by 14. Measured as search effort it is roughly sixteen times an easy board, and almost nothing falls out without a chain of several steps behind it.

Difficulty

Bigger boards with more trees to place are harder. Every puzzle has exactly one placement.

14×14 board. Pitch one tent beside every tree so no two tents touch, and the numbers count the tents in each row and column.

Two pages: the puzzle and its answer. Every puzzle is proved to have exactly one answer by the same engine as our KDP studio.

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This makes one puzzle. Sign up to turn it into a full Tents book for Amazon KDP: hundreds of graded puzzles at any trim, as print-ready PDFs.

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Preview

The puzzle and its answer, as they print.

Tents Evil

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Tents Evil · Solution

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How to solve a tents and trees

Pitch one tent beside every tree, pairing them one to one, so that no two tents touch even at a corner and the numbers beside each row and column count the tents in it.

The method

1Cross out the zeros first. A row or column numbered 0 has no tents in it at all. That is free information and it usually settles a few trees straight away, because it leaves them only one free square.
2Find the trees with one square left. A tree with only one square beside it that is still in play must use it. Place that tent, then immediately rule out all eight squares around it, including the diagonals.
3Count the space in each line. When a line needs as many tents as it has usable squares left, every one of them is a tent. The same the other way: when a line already has its number, the rest of it is out.
4Remember the pairing goes both ways. It is not enough for every tent to have a tree beside it. Each tree needs its OWN tent, so if two trees can only share one square between them, something earlier is wrong.

The one rule people get wrong: Tents never touch, and that includes corner to corner. Trees have no such rule and may touch each other freely.
What the answer page shows: The finished camp is printed at the back.
How the grades differ: Bigger boards with more trees, which measurably about doubles the chain of deductions a grade at a time.
Good for: Solvers who like a puzzle that is mostly ruling things out.

Making a whole Tents and Trees book?

This page makes one puzzle. To publish a book on Amazon KDP, the KDP Tents and Trees maker generates hundreds of graded puzzles at any trim, as a print-ready 300 DPI interior and solutions PDF.

More printable Tents and Trees

See every printable Tents and Trees

Questions

Are these evil tents and trees free to print?: Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up.
Does every puzzle have one solution?: Yes. Every puzzle is generated and checked so the trees and the numbers fix exactly one placement, verified before it prints. The answer is on the second page.
Can I make a Tents and Trees book to sell on KDP?: Yes. The free tool makes one puzzle. The KDP Tents and Trees maker generates hundreds of graded puzzles at any KDP trim, as a print-ready 300 DPI interior and solutions PDF.