FEN 50-no-progress move ply count ;; HELP!

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mgx9600

Based on what I understand, the FEN 50-no-progress move count gets reset whenever there is a pawn movement or capture.

 

I played the following game:

https://www.chess.com/live/game/2133322552

 

At turn 84, black promoted a pawn by moving it to its promotion rank, but it seems chess.com did not reset the 50-move ply count, causing chess.com to report the follow final position FEN:

 

1b6/8/8/8/8/8/r5k1/2K2q2 w - - 8 88 (chess.com FEN)

 

If the 50-move ply count was reset on black's 84th turn, the FEN should look like:

1b6/8/8/8/8/8/r5k1/2K2q2 w - - 6 88 (what-I-think-is-correct FEN)

 

So, which is correct?  and why ?

 

EscherehcsE

You, sir, are correct.

Why? Well, because you are correct. :)