Cross Number Puzzles, volumes 1+2

This book contains 50 crossnumber puzzles, including hybrids (crossnumber + sudoku) and crossfigures with only a selected subset of digits. Each puzzle has a solution guide (a possible order for filling the grid) and a solution. There is a chapter with step-by-step instructions on creating your own puzzles. This book is a combination of volumes 1 and 2 of "Crossnumber Puzzles".