Cheers @stayoutoftherz, great job for fun. Friend @ jaki01 has been quicker to respond, as well as good at his game hahahahaha
As for the position of: Wrong variant, sir!
I think the mate in 4 is like this:

1. b4 + Kxb4
2. Qa4 + Kc5
3. Ba3 + Kb6
   Cheers @stayoutoftherz, great job for fun. Friend @ jaki01 has been quicker to respond, as well as good at his game hahahahaha
   As for the position of: Wrong variant, sir!
   I think the mate in 4 is like this:
4. b4 + Kxb4
5. Qa4 + Kc5
6. Ba3 + Kb6
7. Qb5 ++