Great Puzzle!
First correct answer from any player rated under 1200 gets a new BZCA T-shirt!
.Ra6...bxa6.b7#
Get that king 🤴🏾 PNJBravoZulu a t-shirt 😉👏🏾👏🏾
There’s still one other checkmate sequence sequence if Black doesn’t play b x a6...Can you Kings & Queens figure it out ?
ra6 bxa6 b7#
also bxa7 b6 axb8=Q#