Henry Ernest Dudeney/Puzzles and Curious Problems/310 - Two Domino Squares

Puzzles and Curious Problems by Henry Ernest Dudeney: $310$

Two Domino Squares

Arrange the $28$ dominoes as shown in the diagram to form two squares

so that the pips in every one of the eight sides shall add up alike.

The constant addition must of course be within limits to make the puzzle possible,

and it will be interesting to find those limits.

Of course, the dominoes need not be laid according to the rule, $6$ against $6$, blank against blank, and so on.

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Crossing River Problem, and Problems Concerning Games and Puzzle Games: $310$. -- Two Domino Squares
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Domino Puzzles: $489$. Two Domino Squares