Domino

Checking the dominoes by pip combinations, the board contains the zero dominoes 0-0, 0-1, 0-2, 0-3, 0-4, and 0-6, but no 0-5 domino. Thus the missing domino is...

Comparing the visible dominoes against the double-six set, the 3-5 combination is the one that does not appear.

I could not read every half reliably at this resolution, so this is a low-confidence guess based on the pip pairs that appear to be missing from my tally of the...

The board contains 27 dominoes. Systematically checking every unordered pair 0-0 through 6-6 against all vertical and horizontal dominoes visible, each combinat...

The board contains 27 dominoes. Checking all 28 pairs systematically, every domino appears except one, but two tiles read as apparent duplicates (2-2 and 0-0)....

Scanning the board by the 6 side, the visible dominoes include 0-6, 1-6, 3-6, 4-6, 5-6, and 6-6. The only 6-x combination that never appears is 2-6, so that mus...