Idk if this is illegal. White to move
It's obviously illegal. Black has eight pawns and a promoted bishop.
that position is just a mess
if this wasnt the case it would probably take forever to see the capture sequences
But this way is quicker.
i showed it
Yes you did, and I overlooked it. My bad.
[An illegal position]
The bishop didn't just move, so the last move must have been Pc7-c5+. But with the pawn on c7, every square on the 6th rank is attacked by a pawn, so the white king could never have moved past the 5th rank.
@#4920, with black to move
Yes, the pentangulation saves a couple of moves over the heptangulation at #4920.
But what happened after the king reached f2 was a triangulation.
its a setup to a triangulation
We just saw this kind of illegality. Black has eight pawns and a promoted bishop.
But this way is quicker.
i showed it
look at my sideline
i just showed both players turn