Nice game
A "Phyrric" Victory?

You're right. The goal of chess is to "kill" the king at all costs even at the cost of material advantage. I think that if checkmate is achieved, how many mistakes you made or your opponent made doesn't make much of a difference.

It is indeed "Pyrrhic". Looked at reinwin's game, LOL, you hung a bishop out in right field on move 5. If it is accurate, the transcript is pathetic, but I did notice that you and the OP both misspelled Pyrrhic the same way, time for Matthew-Gross to come in here and defend himself. We don't have to observe FIDE rules on chess.com, the only rules are the ones incorporated into the software, which cannot be bribed, seduced or intimidated, unlike FIDE officials, and they say that if your flag falls when I still have mating force on the board, you die.
This game embodies the spirit of winning against all odds and costs. The irony of this game is that after computer analysis my opponent didn't seem to make any horrible mistakes as I did.
However I still won the game! Believe it or not.Your comments folks TIA!