Size of board:
Click on a square above to turn over a picture, then click another square to see if you can match the picture, if not then the next square you click will turn the unmatched pictures back over and the picture you clicked will be shown, otherwise if a match occurs then these images remain visible. The number of tries is shown at right above. For 36 squares you can do it in a minimum of 18 tries. Change the size of the board by clicking a radio knob to adjust for your screen resolution!