@angelplan had a knockout here if he captured pawn and
@CanoGeel recaptures with bishop as seen with these poorly drawn arrows:
View attachment 193991
1… dxc3 2. Bxc3? Re3! 3. Rc1 Qc7
and white loses a bishop.
even if white doesn’t recapture you’re up an extra pawn and it’s a passed pawn at that, promotion is unstoppable.
There’s also the chance that white could take the pawn with check but you just move your king back to safety with Kg8 and black is still winning because the pawn is being promoted on the c file as opposed to the d file with no room behind it!
Now the passed pawn is guarded by the rook and soon queen as well.