Especial Sudoku Nivel 3-4

"Especial Sudoku Nivel 3-4" is a puzzle book published by Zugarto Ediciones, an Argentine publisher specializing in Sudoku and other puzzle books. The book features Sudoku puzzles with difficulty levels 3 and 4, offering a challenging experience for enthusiasts. Each edition contains 68 pages and is released monthly. The publisher, Zugarto Ediciones, is based in Argentina and has been producing puzzle books for several years.