I have no idea. I picked her cause she's just funny looking. In the pics she looks black but she's actually chocolate. On her belly she has a single white spot about the size of a quarter, and under her chin there is a mottling of blue fur. Flash was listed as Russian blue, but she's actually tabby. She's blue-ish but she has a darker mottling of striped coming in on her tail and back. And she has a short tail. By my estimation it's about two inches too short. The rest of her litter were polydactyl with normal tails.