Illegal Position Contest!

[#4999]
i was referring to n9531I1 rook on g2 post
A little long, but what the heck. Mine was long too (110.5 moves).
mine was 8 moves

1 is idk
2 black did 2 captures and then the white rook can come there cuz smth like this
but no thats mate so put the white king and pawn 1 square down. seems legal.
3 the knights cant jump cuz the pawns and i already posted an illegal position like this
4 is spam

@EvinSung Nice!
@llampozhil
1 is that black had no last move - the bishop wasn't from g7 and the pawn couldn't have moved g5-g7 because then the white king would have no way to get to the eighth rank.
2 is illegal - if its black to move white has no last move, and vice versa.

In the previous position (#5024), which black pawn or pawns can be removed without changing the position's legality?

e7 no since the bishop
f6 no since kg5
g6 no since kh5
f7 yes since kg6-h6 would capture the pawn and if kg6-h6 then g7-g6 then kh6 would be illegal
[#4999]
i was referring to n9531I1 rook on g2 post
A little long, but what the heck. Mine was long too (110.5 moves).