Domino

The board contains 27 dominoes from a double-six set. By systematically checking all possible dominoes (0-0 to 6-6), it was determined that the 3-5 domino is no...

The board shows the other double values, including 0-0, 1-1, 3-3, 4-4, 5-5, and 6-6, but no domino with two 2-pips.

The pip counts in this low-resolution image are hard to read reliably, so I could not verify every domino. Based on a best-effort reading, the 1-5 domino does n...

I checked the dominoes shown against the double-six set; the 2-6 domino does not appear on the board.

The board contains 27 dominoes. Systematically checking all 28 combinations of the double-six set (0-0 through 6-6) shows every domino appears once except 4-5,...