Why is this game a draw by insufficient material?

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UEFI

I was playing a 10 min live game. My timer ran out first, this is the ending position, I am black, and the game was called a "draw by insufficent material" by chess.com

I would have thought that I should lose by timeout, and I have ample material to force a mate?



wanmokewan

White doesn't have enough material to checkmark you. You need to be able to force one to win on time.

UEFI

Thanks