In this instance, Chess.com does not consider helpmates. We more closely follow the USCF rules instead of FIDE rules. We don't actually follow either, but instead, do a small hybrid that is practical for online play.
Draw by insufficient material
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Aug 1, 2019
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Sprinc1 wrote:
Hello,
today I flagged my opponent in this position ( I played the white pieces)
It was a 3 minute game without increment and in this position my opponent ran out of time.
The game ended in a draw, which I do not get, because the draw by insufficient material chess rule says this: "The game is drawn when a position is reached from which a checkmate cannot occur by any possible series of legal moves, even with the most unskilled play."
But if my opponent wants me to win he can, for example this position can arise after few "idiotic moves from black"
Black only needs to promote his pawn in a bishop which is light-squared and then I can win.
So my question is: Why was the result of the game draw? Is there a bug in a system?
Thanks for your answers
You are white and do not have sufficient material to mate black. In most cases the site ignores the material the side without time has, and a bishop and king can't mate.
The site uses a variation of the USCF rules, not the FIDE implementation. For FIDE, if mate is possible by any series of moves, the the side with time would win, but here that is not the case.
jdcannon wrote:
In this instance, Chess.com does not consider helpmates. We more closely follow the USCF rules instead of FIDE rules. We don't actually follow either, but instead, do a small hybrid that is practical for online play.
Okay, thanks.
Do you consider changing this in the future?
And what other diffrences of rules are there? (So I don't get suprised later)
Ok, so your opponent's time runs out, and then a rule says you have to have sufficient material to mate: Draw.
Just looking at your pieces, a Bishop and a King… had I been you, I wouldn't have blinked an eye at the decision, and your disappointment "surprise" is the real surprise of this thread.
Just saying… 
Hello,
today I flagged my opponent in this position ( I played the white pieces)
It was a 3 minute game without increment and in this position my opponent ran out of time.
The game ended in a draw, which I do not get, because the draw by insufficient material chess rule says this: "The game is drawn when a position is reached from which a checkmate cannot occur by any possible series of legal moves, even with the most unskilled play."
But if my opponent wants me to win he can, for example this position can arise after few "idiotic moves from black"
Black only needs to promote his pawn in a bishop which is light-squared and then I can win.
So my question is: Why was the result of the game draw? Is there a bug in a system?
Thanks for your answers