Another key rule is to use the information you have just placed to make further deductions about the placement of the 1's and 0's in the grid. So you may find at the start you go around several times applying these two rules, each time there are further deductions that can be made. For instance, since we know that row 3 column 8 must be a 0, we now have created an instance of the '0-blank-'0 pattern in the final column, and therefore can place a '1' at R4C8. A call option is in-the-money if the current market value of the underlying stock is above the exercise price of the option. The call option is out-of-the-money if the stock is below the exercise price. A put option is in-the-money if the current market value of the underlying stock is below the exercise price. A put option is out-of-the-money if its underlying price is above the exercise price. If an option is not in-the-money at expiration, the option is assumed worthless. Too busy trading to call? Email us with any questions or concerns. How can we help you?