Word Search Puzzle structuresOnline version structures by Alejandro Aragoncillo Cazorla 1 STRUCTURES 2 ARTIFICIAL 3 RESISTANT 4 NATURAL 5 STABLE A F B O S M O O R X B M F G A Y T A L O A V O Y S J R I A Y A U M I Q N E P T X B Q R B B I E C R R I F L B U E O X H S U U F R E A T H L B U I T R I A F Y A R D U M F C S C R L A N S T A G L U Y I O E I E A P G S V R V A A V I N T O H A U T I L E U O O Q G F B I S I R E S I S T A N T L