I do not know where the pattern can be found but it is very easy. All you do is make a nine patch block any size you want, I usually cut the squares 4 1/2 inch in size. Use two colors an alternate them. Like Red-white-red, Next row would be White-red-white, the last row would be Red-white-red. After you have sewn these take the block and cut it thru the middle both ways. Then rearrange two of the squares on opposite corners and you have the DP9P.