Are these hard logic grid puzzles free to print?

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

Will I ever have to guess?

No. Every board is checked both ways before it prints: that the clues allow one arrangement, and that reasoning alone reaches it. A board that needs a guess is thrown away. The answer table is on the second page.

Can I make a logic grid book to sell on KDP?

Yes. The free tool makes one puzzle. The KDP logic grid maker generates hundreds of graded puzzles at any KDP trim, as a print-ready 300 DPI interior and answers PDF.

Free printable

Hard logic grids

A hard logic grid is four categories of four, and from this grade up no clue places anybody outright. Every square has to be reasoned to, and the fourth category is what makes that work: a fact can now travel two blocks before it says anything.

Difficulty

A harder grade adds a category and drops the clues that hand you a square for free. The clue list is then cut back until not one clue can go, so nothing on the page is deducible from the rest.

4 categories, 4 each, 7 clues. Read the clues, tick and cross the grid, and work out which of each category goes with which. Nothing here needs a guess.

Two pages: the puzzle and its answer. Every puzzle closes by reasoning alone, proved by the same engine as our KDP studio.

Want the whole book?

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

Build the full book

Free to build · pay once to export

Preview

The puzzle and its answer table, as they print.

Logic Grid Hard

Six neighbours live along one side of Alder Street, counting up from the corner.
The goldfish owner is either in house 3 or in house 1.
The parrot owner is immediately to the left of the willow tree.
The holly tree is somewhere between Alice and the oak tree.
Dev is somewhere between the rabbit owner and the oak tree.
Alice is either the rabbit owner or the parrot owner.
The rabbit owner is somewhere between Alice and the holly tree.
House 4 is either Alice or Esme.

1
Logic Grid Hard · Solution

House Neighbour Pet Tree
1 Alice parrot plum
2 Bram rabbit willow
3 Dev goldfish holly
4 Esme cat oak

2

House	Neighbour	Pet	Tree
1	Alice	parrot	plum
2	Bram	rabbit	willow
3	Dev	goldfish	holly
4	Esme	cat	oak

How to solve a logic grid puzzle

Read the scene, read the clues, and work out which of each category goes with which. The grid down the page is where you keep track: tick what a clue settles, cross what it rules out, and the arrangement falls out of what is left.

The method

1Mark the clues that say no. Most clues rule something out rather than pinning it down, and those are the ones to put on the grid first. Find the block that pairs the two categories the clue names, and cross the cell where they meet. Nothing has been decided yet and that is fine: four crosses in a row of five decide the fifth for you.
2A tick clears its row and its column. The moment a cell is settled, nothing else in that row or that column can be true, because each item belongs to exactly one person. Crossing all of them out is not bookkeeping, it is where the next deduction usually comes from.
3Carry a fact sideways. The step people miss. If Alice is in house three, then everything you learn about house three you have learnt about Alice, and everything you learn about Alice you have learnt about house three. Copy the whole row from one block into the other. On a four or five category board this is most of the solve.
4Read the ordering clues from both ends. Somewhere to the left of, two places before, somewhere between. Each of those trims both ends of a line at once: if the cat owner is left of Alice, the cat owner is not in the last house and Alice is not in the first. Taken one at a time they say very little; taken together they close a board.

The one rule people get wrong: A cross means those two items belong to different people. It does not mean either of them is settled anywhere else, and it is easy to tick a neighbouring cell out of impatience. Only tick when the row or the column has nothing else left in it.
What the answer page shows: A table of who had what: one row per person, one column per category, so you can check a line at a glance rather than reading a filled-in grid.
How the grades differ: More categories and more people, and from the hard grade up, no clue that places anybody outright. The clue count falls relative to the board as the grades rise, which is most of what you feel.
Will I ever have to guess?: No. Every board here is checked twice before it prints: that the clues allow one arrangement, and that reasoning alone reaches it. A board that needs a guess is thrown away rather than printed.
Is it the same as a sudoku?: No. A sudoku gives you the rules and some of the answer; a logic grid gives you all of the rules in words and none of the answer. There is no arithmetic in it anywhere, and the work is reading rather than scanning.
Good for: Anyone who likes to argue their way to an answer in prose.

Making a whole logic grid book?

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

More printable logic grid puzzles

See every printable logic grid puzzle

Questions

Are these hard logic grid puzzles free to print?: Yes. Generate the puzzle above and print it with its answer, at no cost and with no sign-up.
Will I ever have to guess?: No. Every board is checked both ways before it prints: that the clues allow one arrangement, and that reasoning alone reaches it. A board that needs a guess is thrown away. The answer table is on the second page.
Can I make a logic grid book to sell on KDP?: Yes. The free tool makes one puzzle. The KDP logic grid maker generates hundreds of graded puzzles at any KDP trim, as a print-ready 300 DPI interior and answers PDF.