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Insufficient Material Rule Question

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ChessHands86

I've been playing chess for a lot of years, so I never thought I would ever have a question concerning the rules of chess again.

I recently lost a game where my time ran out. I had only two pawns left, and my opponent only a knight. I was 100 % sure this would be a draw, because I know that a king and a knight are considered insufficient material to mate, but much to my surprise, it was declared a loss. Can someone explain why? I googled it for quite some time, but couldn't find an answer. Thanks.

ChessHands86

I think you read it wrong, I was the player with the 2 pawns, my opponent had zero pawns and only a knight.

ChessAddictLoggingOff

I think it should be a draw on chess.com, but not according to FIDE rules. your pawns could potentially box your own king in, so king + knight can mate.

borovicka75
According to FIDE rules, if there is a sequence of legal moves whitch lead to mate (no matter how nonsensical moves are) the win on time is claimed. Pawn can be underpromoted to a bishop or the knight and then checkmating construction exist. If it happened at chess.com, i am not completely sure what the rule is. Maybe Mr. Stahl appears and explains.
Terminated800
a knight can mate against a rook pawn
borovicka75
Yes, but mr. Chesshand didńt say if he had rook pawn or not.
Terminated800

Can you post a link to the game @ChessHands86

tygxc

@7

A knight can checkmate against any pawn. The pawn can underpromote to either a bishop or a knight or a rook and then box in its own king to get checkmated.

'6.9 Except where one of Articles 5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.2.3 applies, if a player does not complete the prescribed number of moves in the allotted time, the game is lost by that player. However, the game is drawn if the position is such that the opponent cannot checkmate the player’s king by any possible series of legal moves.'
Laws of Chess

borovicka75
Question is, if that concrete rule is applies on chess.com. I am not sure about it. I remember game Firouzja - Carlsen from blitz WCh OTB when Carlsen had Bishop only and Firouzja opposite color bishop amd three pawns. Firouzja flagged and Carlsen claimen victory. Firouzja angrily argued with refree afterwards about something and commentator said that Firouzja is used to play on chess com and there it is a draw.
Hartsville54

My understanding is (and I may be mistaken), the rule describes above is a FIDE rule. This site follows the USCF rules which require your opponent to have mating material regardless of any helpmate moves that can be made?

RWQFSFASXC2000

Yk u could get boxed in by your pawns and the knights will checkmate

were the pawns rook pawns?

tygxc

@9

"if that concrete rule is applies on chess.com"
++ No it is not. Chess.com has implemented it wrong.
On chess.com you can get a draw by letting your time run out even when faced with a forced checkmate.
On chess.com you can win on time in a dead position, where no checkmate is possible by any series of legal moves.

tygxc

@10

"this site follows the USCF rules" ++ No that is not true. Under USFC you cannot get a draw by letting your time run out if there is a forced checkmate.

Martin_Stahl
ChessHands86 wrote:

I've been playing chess for a lot of years, so I never thought I would ever have a question concerning the rules of chess again.

I recently lost a game where my time ran out. I had only two pawns left, and my opponent only a knight. I was 100 % sure this would be a draw, because I know that a king and a knight are considered insufficient material to mate, but much to my surprise, it was declared a loss. Can someone explain why? I googled it for quite some time, but couldn't find an answer. Thanks.

I don't see any recent losses by timeout that match that description. Do you have a link to the game

But if you meant an OTB game, played under FIDE regulations, then mate was possible, as explained above, so it's a loss

Ultron_gr
tygxc wrote:

@10

"this site follows the USCF rules" ++ No that is not true. Under USFC you cannot get a draw by letting your time run out if there is a forced checkmate.

Exactly, i recently experimented and tried that exat scenario, letting my time run out while my opponent has a forced mate in 1 (with a king and knight for him), and chess.com considers that a draw, meaning it allows white to let his time run out and get a draw, instead of playing any move to get checkmated.