Closing in 3 days, Seller says he wants to keep the House

[Stuart Birdsong]

Hey BPers',

     I ran into a new one today, I have had a property under contract for 10 days and closing is on Friday. Seller informs me today that he wants to keep the house, despite signing a  contract. Contract has specific performance for seller in case of default. I realize he technically has to sell, but would like to come up with a creative strategy to make this work. Thoughts?

Thanks in advance!

Stuart