DOMINO EFFECT

Using an ordinary 28-tile double-six set of dominoes, place tiles in a continuous chain so that the total number of spots in each row and column adds up to the totals provided. We’ve given you half of the first and last domino to start you off. Dominoes should be placed end to end along the path, with the numbers on adjacent ends matching. Remember, domino sets include blanks, as well as the numbers one to six, and there is only one tile with any given combination of numbers.

Answer next week.