What is Domino?
Find all 28 unique dominoes hidden in a number grid. Each domino covers two neighbouring cells. Reversing the order of the numbers does not create a different tile type.
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Find all 28 unique dominoes hidden in the number grid.
01
Today's Domino challenge
Detailed results are kept for the current month and the previous three months. Older puzzles remain playable without new account results or puzzle points. Lifetime progress is preserved.
Calendar
List
October
Mo
Tu
We
Th
Fr
Sa
Su
| Date | Difficulty | Status |
|---|---|---|
| 27 October 2026 | Easy | Not played |
| 26 October 2026 | Easy | Not played |
| 25 October 2026 | Expert | Not played |
| 24 October 2026 | Hard | Not played |
| 23 October 2026 | Hard | Not played |
| 22 October 2026 | Medium | Not played |
| 21 October 2026 | Medium | Not played |
| 20 October 2026 | Easy | Not played |
| 19 October 2026 | Easy | Not played |
| 18 October 2026 | Expert | Not played |
| 17 October 2026 | Hard | Not played |
| 16 October 2026 | Hard | Not played |
| 15 October 2026 | Medium | Not played |
| 14 October 2026 | Medium | Not played |
| 13 October 2026 | Easy | Not played |
| 12 October 2026 | Easy | Not played |
| 11 October 2026 | Expert | Not played |
| 10 October 2026 | Hard | Not played |
| 9 October 2026 | Hard | Not played |
| 8 October 2026 | Medium | Not played |
| 7 October 2026 | Medium | Not played |
| 6 October 2026 | Easy | Not played |
| 5 October 2026 | Easy | Not played |
| 4 October 2026 | Expert | Not played |
| 3 October 2026 | Hard | Not played |
| 2 October 2026 | Hard | Not played |
| 1 October 2026 | Medium | Not played |
| 30 September 2026 | Medium | Not played |
| 29 September 2026 | Easy | Not played |
| 28 September 2026 | Easy | Not played |
| 27 September 2026 | Expert | Not played |
| 26 September 2026 | Hard | Not played |
| 25 September 2026 | Hard | Not played |
| 24 September 2026 | Medium | Not played |
| 23 September 2026 | Medium | Not played |
| 22 September 2026 | Easy | Not played |
| 21 September 2026 | Easy | Not played |
| 20 September 2026 | Expert | Not played |
| 19 September 2026 | Hard | Not played |
| 18 September 2026 | Hard | Not played |
| 17 September 2026 | Medium | Not played |
| 16 September 2026 | Medium | Not played |
| 15 September 2026 | Easy | Not played |
| 14 September 2026 | Easy | Not played |
| 13 September 2026 | Expert | Not played |
| 12 September 2026 | Hard | Not played |
| 11 September 2026 | Hard | Not played |
| 10 September 2026 | Medium | Not played |
| 9 September 2026 | Medium | Not played |
| 8 September 2026 | Easy | Not played |
Completed on time
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Today's challenge
Easy27 October 2026 • Not played
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02
Our puzzle books
03
Everything you need to know about Domino
Learn the rules and try a practical solving tip.
Rules
- Use every tile type from 0|0 to 6|6 exactly once. For example, 3|5 and 5|3 are the same type.
- Click a number and then a neighbouring number to mark a domino.
- Every cell must belong to exactly one horizontal or vertical domino, never a diagonal one.
- Use Block mode to mark edges where a domino cannot go.
Tips
Tip: If two threes are adjacent in only one place, the 3|3 tile must go there. Neither cell can then belong to another tile.