How does white win here?

Look at the board...

Maybe not. I’ll have to think about it. 

Does black have three pass pawns?  Outlook not good for white.  

Otherwise, b-b2

Bishop takes pawn from A3

@wids88

The board has coordinates on it  Also, after N-D4 the e-pawn can promote to a knight, so not quite

@RonaldVelich Black does have three passed pawns, and four if you count the pawn on a3, so Bb2 is incorrect

@kingpawnchicken

I take your bishop with my b4 pawn. What do you do next?

Nd4 then Nc2

knight from b5 takes the pawn... mate next move

wait

if you go Nd4 then Promote to knight]

@100roundy

@kingpawnchicken

Whoops... I should have refreshed the page. But yeah

Nxa3.. bxa3.... Bxa3 and then mate with Bb2...

Smart! But not quite

is it correct

Hint: Bxa3 is the correct first move. How does white win after the b4 pawn eats the bishop?

Kc2...e1=Q..... Nd4..... then what does black have??

Kc2!!!!