When I setup a custom position, pawns go toward the wrong side!

Hello everyone,

I am currently doing the exercises of "1001 Deadly Checkmates" (which is basically finding checkmates) and wanted to check one answer (that I think is checkmate but is not listed as checkmate) using chess.com analysis feature, but when I set the custom position, the pawns are going to the opposite side!

Can someone tell me what am I doing wrong:

Steps to reproduce

1- Here on chess.com go to Learn -> Analysis -> Setup position

2- Enter FEN: 1K3BBR/2PR2P1/P5QP/q7/2PN1b2/p2p2p1/1pp4p/1kr1r2b b - - 0 1

3- Click play vs computer

4- Try to move any pawn (it goes to the opposite side) #lol

When I click "practice vs computer"

- How can I define who will start? (e.g. I want to start as black with that custom position)

- How can I define to which side the pawns should move #lol

I know I have to modify the FEN somehow to fix this, but not sure what.

Thanks and regards!

Because your FEN is set up backwards.

It is supposed to start with row 8 and work down.

You have started with what you want to be in row 1.

https://en.m.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation

Thanks!, I will fix this.

Regards/