Easy Sudoku Twelve Logic Puzzles (Vol 1) 
 Chapter 32: Two Easy (DiffLev 3) Imponderably Puzzles (numbers 143-144) 
 
-  Step-by-step instructions for solving  Puzzle 143, (56/144)   Diff: 3/992
 -  Step-by-step instructions for solving  Puzzle 144, (59/144)   Diff: 3/991