* Cremello is a dilution gene: It doesn't *add* color, but rather lightens existing colors.
* Black and white paint is complex: The "paint" part indicates the horse carries the "paint" gene, which creates patches of white. The "black" part means the horse has the base color black, but could be carrying other genes for dilution or patterns.
Possible Outcomes:
* Most likely: You'd get a cremello or near-cremello paint, meaning a light, almost white horse with patches of a lighter cream or gold color.
* Less likely, but possible: If the black paint mare carries the gene for a dilute color like bay or chestnut, you could see a light bay or light chestnut paint with cream patches.
* Very rare: It's possible, but extremely unlikely, for the mare to have a rare recessive gene that would allow for a black or dark bay foal with cream patches. This would only occur if the mare was carrying both the black and a dominant, but not visible, color gene.
Important Note: It's almost impossible to predict the exact color and pattern without knowing the genetics of both parents. A veterinarian specializing in equine genetics could potentially help you make a more accurate assessment.