Si tratta di collegare i 3 castelli A;B;C con le rispettive fontane
D;E;F tracciando 3 strade senza incroci.
Pacioli da' 2 soluzioni (speculari)
Connect the 3 castles with the respective fountains
describing 3 streets without crossbreeds.
Pacioli give 2 solutions (mirror)
Riferimenti:
XXXI "The Three Fountains" Prof. Hoffmann Puzzles old and
New , 1893 pag.387
LIV "Quarrelsome Neighboors" Cyril Pearson Twentieth Century Standard
Puzzle Book 1907