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FAQ

Q: What do the domino colours mean?

A: A red domino indicates that domino is not in the sequence.

A yellow domino indicates that domino is in fact in the sequence but in a different position.

A green domino indicates that domino is in the correct position in the sequence.

Q: Why are some keyboard dominos disabled?

A: The domino keyboard ensures you can only enter a valid domino sequence: each domino appeas only once (flipped or not) and the left end of each domino matches the right end of the previous one. Only dominos that can produce a valid sequence are enabled.

Q: Why are red keyboard dominos not disabled?

A: Dominos that don't appear in the sequence to guess are coloured red. They are not disabled so you can still enter them in new guesses.

HINT: Sometimes it is useful to enter a domino you know does not appear in the sequence in order to test other dominos.