docLock
  • Includes more than 1000 quality Sudoku puzzles
  • 3 levels of difficulty - Easy/Medium/Diabolically Hard!
  • Option to print out puzzles, or complete them on screen
  • Hint Facility - reveals the correct solution to a square
  • Save or pause unfinished puzzles
  • Includes an illustrated guide to playing Sudoku
  • Keeps track of completed or partially completed puzzles for multiple users
  • Pencil Mode - enter up to 9 possible numbers which can easily be erased
  • Hint Facility - highlights cells where the correct number can be entered
  • Duplicate Number Warning - an optional feature that flags if a number has been duplicated
  • Time your puzzles for an extra challenge against family and friends