why the game ends drawn in this situation?

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Avatar of raffaeleaceto

 

 

Hi! I have a question for you all. In this game I'm the white and the black is out of time. But in the end of the time, the server says "Game drawn for insufficient material". But there were a lot of moves the black could do to checkmate me, before his time ends.

 

Please, can you explain me this situation?

 

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Avatar of Martin_Stahl

Black doesn't have time, as can be seen by the clock, so checkmate is not possible. You only have a king, which is insufficient material to checkmate. In that case, the result is a draw.

Avatar of raffaeleaceto
Martin_Stahl ha scritto:

Black doesn't have time, as can be seen by the clocj, so checkmate is not possible. You only have a king, which is insufficient material to checkmate. In that case, the result is a draw.

Yes I know that.. but he spent much time with useless checks so he finished time. Are you telling me that if I had other pieces like rooks or bishops I could win the game for opponent's out of time?  

Avatar of Martin_Stahl

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

 

For an OTB tourney, under FIDE regulations, if the side with time could mate their opponent by any legal series of moves, it would be a win for them.

Avatar of raffaeleaceto

Ok, understood!

Thank you so much!

Avatar of FortunaMajor
Martin_Stahl wrote:

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

If we have a knight and the opponent has a rook (as shown in the picture), and the opponent's time runs out, shouldn't we be winning? I mean, it's possible for a helpmate using knight against a rook and king.

Avatar of JamesAgadir
aravinds_ll a écrit :
Martin_Stahl wrote:

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

If we have a knight and the opponent has a rook (as shown in the picture), and the opponent's time runs out, shouldn't we be winning? I mean, it's possible for a helpmate using knight against a rook and king.

With Fide rules you would win on timw in USCF rules it would be a draw. Chess.com uses USCF rules.

Avatar of Martin_Stahl
aravinds_ll wrote:
Martin_Stahl wrote:

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

If we have a knight and the opponent has a rook (as shown in the picture), and the opponent's time runs out, shouldn't we be winning? I mean, it's possible for a helpmate using knight against a rook and king.

 

That's why I posted the second paragraph/section. Chess.com doesn't use FIDE rules on timeout to determine insufficient material or if mate is possible at all (in something like a locked position or completely forced continuation).

Avatar of ThrillerFan
aravinds_ll wrote:
Martin_Stahl wrote:

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

If we have a knight and the opponent has a rook (as shown in the picture), and the opponent's time runs out, shouldn't we be winning? I mean, it's possible for a helpmate using knight against a rook and king.

 

Depends on the organization you are playing under:

 

USCF - No!  (Chess.com is not exactly the same as USCF, but it's the closest to it than any other organization)

 

FIDE - Yes!

 

FIDE states that if any set of legal moves leads to a mate for the player with time, it's a win for the player with time left on the clock.

 

USCF states that any scenario of K, K+N, K+B, or K+N+N and the Opponent has no pawns, then in order to win, you must demonstrate forced checkmate, otherwise it's a draw.  For example, WKe6, WBb1, BKg8, BPe7, BPh7.  White now makes the move 1.Bh6, and Black stalls and lets his clock run out.  Chess.com, that's a draw, which is stupid.  USCF, that's a win for White despite just K+B because he can demonstrate forced checkmate.  1...Kh8 (Only legal move) 2.Kf2 e5 (or 2...e6, same result) 3.Bg7#.

Avatar of ThrillerFan
JamesAgadir wrote:
aravinds_ll a écrit :
Martin_Stahl wrote:

On this site, if you only had a bishop, or had one or two knights, it still would have been a draw. If you had a pawn or other material, you would have won.

If we have a knight and the opponent has a rook (as shown in the picture), and the opponent's time runs out, shouldn't we be winning? I mean, it's possible for a helpmate using knight against a rook and king.

With Fide rules you would win on timw in USCF rules it would be a draw. Chess.com uses USCF rules.

 

Not totally true - Chess.com is watered down compared to USCF.  It doesn't understand the concept of the player with Insufficient mating material having a forced mate, like in post number 10 with the King and Bishop against King and two pawns.  Otherwise, yes, chess.com follows USCF rules.

Avatar of raffaeleaceto

I Just think that's unbelievable. Black could checkmate me and he didn't. No more discussions for me. IMHO this rule is ridiculous...

 

Thank you all!

Avatar of Martin_Stahl

It isn't ridiculous, other than the fact that black probably should have been able to mate more quickly. But the general rule isn't ridiculous, since it deoesn't make sense to give a win to the other player if they don't actually have material to give mate (arguing whether the FIDE, USCF or Chess.com implementation of that fact is a different thing).

Avatar of FortunaMajor

That rule should be deleted in classical and rapid games but it may be best to include them in blitz and bullet where time is the deciding factor.

Avatar of FortunaMajor

I did a test and well, MS is right. The game is drawn even if you have a bishop or a knight or two knights.

Avatar of raffaeleaceto
aravinds_ll ha scritto:

That rule should be deleted in classical and rapid games but it may be best to include them in blitz and bullet where time is the deciding factor.

I agree with you.

Avatar of Martin_Stahl

Why should it be deleted in classical or rapid? If you don't have material to mate you shouldn't get a win.

Avatar of FortunaMajor

No no. I meant that, on opponent's time-out, we shouldn't get a win in classical or rapid.

Avatar of Martin_Stahl

So, you would rather no material checks in blitz and if you win on time, you win?

Don't like that idea either, that just encourages people to play the clock more than it already happens. Someone that throws away all their material to win on time doesn't deserve a win. I think the existing OBT rules work well and I actually prefer the USCF implementation where help-mates are not considered.

Avatar of FortunaMajor

Well, it gives a guy one last chance to win if he's low on material...

Avatar of FortunaMajor

Is this rule applicable in daily games?