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Can you force mate with just two bishops

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ninjaboy168

Yes you can. it will probably be in a lot of books on checkmates

Dhruv0708
We can force checkmate with two bishops and a king
lfPatriotGames
Martin_Stahl wrote:
lfPatriotGames wrote:

I agree with mattm. The answer is no. You cannot force checkmate with just two bishops. It always requires assistance from some other piece, either yours or the opponents.

 

Mate can be forced with two bishops (not of the same color). If you don't know how to do it, it will either take more than 50 moves, the position will repeat three times, or you'll get lucky.

No, it cannot. It doesn't matter if the two bishops are on the same color or not. It cannot be done without the assistance of some other piece. Normally endgame question assume the king is included (like KNB vs. K) etc. But this question specifically said "just" two bishops. Just two rooks, yes it can be done, just two queens, yes it can be done. But just two bishops, no, it cannot be done. 

As matt said, maybe the question was asked wondering if its possible if the king is otherwise doing something else very important. Even the addition of a single opponents piece could make the two bishop mate possible without assistance from the king.

Thee_Ghostess_Lola

no. not when the two bishops are of the same color. and for that matter ? u couldn't do it with all nine of the same color.

 

glamdring27

Well, obviously...

yaansh

Yes it is possible.You have to just drive the opponents king to corner.

 

Remember,keep. Both bishop and king together.And force king to corner.

lfPatriotGames

I still say no, it cannot be forced. The question probably needs to be clarified, but as it stands the question is if mate can be forced "with just two bishops". The answer is no. With the help of other pieces, the answer could be yes, but just two bishops, no. 

We've all seen mates forced with two pieces (that did not involve the king) such as two rooks, a queen and pawn, a rook and queen, etc. But never two bishops. Two bishops always require the help of at least one more piece. In this position, how would mate be forced with just two bishops?

 

chaotikitat

It’s not hard to do a forced mate with the bishop pair, probably need the king but in the position you show it’s completely won for white 

lfPatriotGames
chaotikitat wrote:

It’s not hard to do a forced mate with the bishop pair, probably need the king but in the position you show it’s completely won for white 

Of course white can win, but that's not the question. The question is can white force a win with just two bishops. With no help from any other pieces. For instance, this position white can force a win with just two bishops, but only because other pieces are helping. 



checkmatt1972

No it is not possible. You would for example need the white king along with the two bishops if black has no other pieces on the board

Lagomorph
lfPatriotGames wrote:

In this position, how would mate be forced with just two bishops?

 

Get rid of the abc black pawns first. Then mate is easy

 

You should check your answer before posting.

Lagomorph
lfPatriotGames wrote:
chaotikitat wrote:

It’s not hard to do a forced mate with the bishop pair, probably need the king but in the position you show it’s completely won for white 

Of course white can win, but that's not the question. The question is can white force a win with just two bishops. With no help from any other pieces. For instance, this position white can force a win with just two bishops, but only because other pieces are helping. 



Posting the usual rubbish AGAIN

technical_knockout
lfPatriotGames wrote:

I agree with mattm. The answer is no. You cannot force checkmate with just two bishops. It always requires assistance from some other piece, either yours or the opponents.

completely wrong... look it up in drills or endgame trainer under elementary mates:

people ought to know what they're talking about before dispensing advice on a matter;

the king as an additional piece is always presumed to be on the board & able to help, btw.

lfPatriotGames
Lagomorph wrote:
lfPatriotGames wrote:

In this position, how would mate be forced with just two bishops?

 

Get rid of the abc black pawns first. Then mate is easy

 

You should check your answer before posting.

I did. And yes, if you get rid of the black pawns the mate would be easy. That's the point. At least one other piece is always necessary. Checkmate cannot be forced "with just two bishops". 

I can show a forced mate with just a queen and rook, or just two rooks, or just a queen and a rook. Can you show a forced mate with just two bishops? 

lfPatriotGames
technical_knockout wrote:
lfPatriotGames wrote:
  1. I agree with mattm. The answer is no. You cannot force checkmate with just two bishops. It always requires assistance from some other piece, either yours or the opponents.

completely wrong... look it up in drills or endgame trainer under elementary mates:

people ought to know what they're talking about before dispensing advice on a matter;

the king as an additional piece is always presumed to be on the board & able to help, btw.

Why is it presumed? The wording of such questions usually go like KBB v K, or KNB v K, etc. This question did not. If the king (or other piece) cannot be used for whatever reason it seems like a reasonable question. Sometimes two pieces can force checkmate, sometimes they cant. 

technical_knockout
Odom8385 wrote:

Can you force mate with just two bishops and if so please explain how? Thank you!

presumed because it's necessary to have one's king.

MARattigan
lfPatriotGames wrote:
chaotikitat wrote:

It’s not hard to do a forced mate with the bishop pair, probably need the king but in the position you show it’s completely won for white 

Of course white can win, but that's not the question. The question is can white force a win with just two bishops. With no help from any other pieces. For instance, this position white can force a win with just two bishops, but only because other pieces are helping. 

OK. I give up. What's the answer?

technical_knockout

no answer because it's a flawed example.

lfPatriotGames
MARattigan wrote:
lfPatriotGames wrote:
chaotikitat wrote:

It’s not hard to do a forced mate with the bishop pair, probably need the king but in the position you show it’s completely won for white 

Of course white can win, but that's not the question. The question is can white force a win with just two bishops. With no help from any other pieces. For instance, this position white can force a win with just two bishops, but only because other pieces are helping. 

OK. I give up. What's the answer.

You got me. The black bishop can intercept. But I know you get the point. We could substitute the black bishop with a black rook I suppose. Or a black pawn. Or a white pawn. Or imagine a thousand other positions where two bishops alone can force mate ONLY if other pieces (of either color) are helping. 

lfPatriotGames
technical_knockout wrote:
Odom8385 wrote:

Can you force mate with just two bishops and if so please explain how? Thank you!

presumed because it's necessary to have one's king.

Yes, but not presumed that the king can help. The king (or other potentially helping piece) can be stymied or immobilized. 

All games involve both kings, but not all checkmates involve use of the offensive king.