Originál: Music Sudoku Six-Square, Set 1. This set of six-square puzzles includes three levels of difficulty--easy, medium-easy and medium.
Preklad: Hudba Sudoku Six-Square, sada 1. Geoffrey R. Lorenz. Začiatok. Hudobné Sudoku Six-Square, Set 1 zložil Geoffrey R. Lorenz. Jednoduchý. Hry.