Star Sudoku Level 6 Author:DALMATION PRESS SUDOKU PUZZLES ARE EASY TO SOLVE AND TOTALLY ADDICTIVE. THEY PRESENT A LOGICAL CHALLENGE AND DO NOT REQUIRE ANY ADDING OR SUBTRACTING OF NUMBERS TO COMPLETE. YOU DON'T NEED A BIG VOCABULARY OR A DEGREE IN MATH TO ENJOY THESE PUZZLES - JUST THE ABILITY TO THINK LOGICALLY. — THIS BOOK CONTAINS 300 EXTREME PUZZLES AND IS IDEAL FOR THOSE WHO KNOW HOW... more » TO SOLVE SUDOKU AND WANT A REAL CHALLENGE.« less