Domino Hunt Solver

Domino Hunt Solver — Step by Step

Choose the set, click the first square and type the numbers row by row (the cursor moves on by itself). Then press Solve. Or play a generated puzzle and send it here with one click.

Domino Hunt Solver: rules, how to use it, tips

Split the grid into dominoes so that every domino of the set appears exactly once.

The rules

The grid holds a full set of dominoes (for example 0|0 to 6|6).
Every square belongs to exactly one domino, made of two neighbouring squares (across or down).
Each domino of the set appears exactly once — 2|5 and 5|2 are the same domino.

Using the solver

Choose the domino set and type the grid (or press Sample).
Press Solve and step through: dominoes with only one place, numbers with only one partner, and what-ifs.

Tips

Unique pairs. Look for a pair of numbers that sit next to each other in only one place — that domino must be there.
Lonely squares. A square whose other neighbours are all used must pair with the one neighbour left.
No repeats. Once 4|4 is placed, cross off every other place where two 4s sit side by side.
Corners and edges. Corner squares have only two neighbours, so they’re often forced early.

The full guide, with a worked example and common mistakes: How to play Domino Hunt.

Questions

How many dominoes are in each set?

0–3 has 10, 0–4 has 15, 0–5 has 21, 0–6 has 28, 0–7 has 36 and 0–9 has 55.

Is there always one answer?

Yes — every puzzle here is checked to have exactly one solution.

Can I show real domino dots?

Yes — turn on ‘Show dots instead of digits’.

How do I solve one from a book?

Open the Domino Hunt Solver, type the grid and press Solve.