can you spot the winning move (s) ?

I made a big oversight last puzzle, so I'm trying to redeem myself :>

There are two puzzles for two different variations

10/10. It's straightforward to spot the moves after some time. in the first one, what happens if after Kb3 white plays Ba3?

There is option when you insert the FEN code 'Puzzle'

Thanks for asking. :> 1... Kg6 2. Bh6 Rb7. The king has to move otherwise they will get mated. If they move the king, simply capture the bishop. If white moves their bishop back to f8, Rb8. Basically the same moveset with a small difference.

NOTE: The rook can move to basically any square on the 7th rank. (A, B, C, D particularly).

Same. Ra2, threatening mate. White must defend Bc1 or lose Bishop

I think Black just moves the Rook to the far side of the board and plays Ra1 after Bc1, or Kxa3 if Kc1.