opiate. 1  a drug containing opium or its derivatives, used in medicine for inducing sleep and relieving pain. 2  any sedative, soporific, or narcotic. 3  anything that causes dullness or inaction or that soothes the feelings. 4  mixed or prepared with opium. 5  inducing sleep; soporific; narcotic. 6  causing dullness or inaction. 7  to subject to an opiate; stupefy.
Each puzzle has one and only one unique solution, and each can be solved using only pure logical deduction-guessing and trial-and-error methods are never required for these puzzles. If you're new to numbergrids, try the smaller puzzles first, then move on to the larger ones.
First enter the numbers of the sudoku directly in the grid or enter them via the Load and Seed buttons. You can then completely solve the puzzle or use the appropriate buttons to check the validity of the puzzle, get tips for step by step solving and much more. See the button descriptions below for more information.