How does one breed a black and white foal by Winter Sultan?
Easy, use a black or a bay mare. Winter Sultan is a liver chestnut and white tobiano. Chestnut bred to chestnut always gives a chestnut foal, so if you want a chestnut and white, like Winter Heiress, use a chestnut mare. Winter sires black and white (his dam is black) about 50% of the time when bred to bay or black mares.