Henry Ernest Dudeney/Puzzles and Curious Problems/279 - Roses, Shamrocks, and Thistles

Puzzles and Curious Problems by Henry Ernest Dudeney: $279$

Roses, Shamrocks, and Thistles

Place the numbers $1$ to $12$ (one number in every design) so that they shall add up to the same sum in the following $7$ different ways --

viz., each of the two centre columns, each of the two central rows,

the four roses together, the four shamrocks together, and the four thistles together.

Sources

• 1932: Henry Ernest Dudeney: Puzzles and Curious Problems ... (previous) ... (next): Combination and Group Problems: $279$. -- Roses, Shamrocks, and Thistles
• 1968: Henry Ernest Dudeney: 536 Puzzles & Curious Problems ... (previous) ... (next): Combinatorial & Topological Problems: Magic Star Puzzles: $400$. Roses, Shamrocks, and Thistles