Henry Ernest Dudeney/Modern Puzzles/193 - A Domino Square

by : $193$

 * A Domino Square
 * Select any eighteen dominoes you please from an ordinary box,
 * and arrange them any way you like in a square so that no number shall be repeated in any row or any column.
 * The example given is imperfect, for it will be seen that though no number is repeated in any one of the columns yet three of the rows break the condition.
 * There are two $4$'s and two blanks in the first row, two $5$s and two $6$'s in the third row, and two $3$'s in the fourth row.


 * Dudeney-Modern-Puzzles-193.png


 * Can you form an arrangement without such errors?
 * Blank counts as a number.