how do you do the knight and bishop mate in the endgame

MathsMaths0

@wollyhood

White to play and win

wollyhood

In how many moves?

Deranged
wollyhood wrote:

Seems way easier to just control the game so that those are not the 3 pi3ces you are left with ...

There are many circumstances where this isn't possible.

Like sometimes you're just stuck with king+bishop+pawn vs king+queen, and the only way to win is to underpromote to knight and get a royal fork with tempo, but then you have to know how to do the king+bishop+knight checkmate.

It's definitely worth learning. Once you learn it, you never forget it.

Rat1960

I have never had BNK v K in over 50 years of playing chess. That said I learned the mate from Fine's Basic Chess Endings. It is a thing. What I found useful about it was it teaches you a little more about the way pieces move and square coverage. 
Consider in a middle game as white having a Bc4 and Ne4, look at all the squares those two pieces influence, (Of course I realise, well what if black has a d5 fork move.)

MathsMaths0
wollyhood wrote:

In how many moves?

The only way to win is to underpromote and fork the queen and king with a knight, thus entering a KBN vs K endgame, as @Deranged said.

YUBHA

thanks for the tips!

wollyhood
Deranged wrote:
wollyhood wrote:

Seems way easier to just control the game so that those are not the 3 pi3ces you are left with ...

There are many circumstances where this isn't possible.

Like sometimes you're just stuck with king+bishop+pawn vs king+queen, and the only way to win is to underpromote to knight and get a royal fork with tempo, but then you have to know how to do the king+bishop+knight checkmate.

It's definitely worth learning. Once you learn it, you never forget it.

I see what you are saying.

I guess I have a long long way to go before I would think it was worth my while to remember complex yet obscure end games, so I'll file this sort of thing near the bottom of a very long list at this stage xD

Wish I could upgrade my RAM or something

nuolinliu

happy.png

YUBHA

happy.png

Rat1960

@wollyhood but once you have the itch you just have to scratch. It teaches you about two pieces working together. Then you take that lesson to your middle games, it is not about the actual how-to mate.

lfPatriotGames
Rat1960 wrote:

I have never had BNK v K in over 50 years of playing chess. That said I learned the mate from Fine's Basic Chess Endings. It is a thing. What I found useful about it was it teaches you a little more about the way pieces move and square coverage. 
Consider in a middle game as white having a Bc4 and Ne4, look at all the squares those two pieces influence, (Of course I realise, well what if black has a d5 fork move.)

I have heard it happens an average of 2 times per lifetime of a chess player. I've had it twice but one didn't count because I had the opportunity to choose that ending over a win and I wanted to try it. So for practical reasons it's useless to know the mate, but I think you are spot on about it's value in learning how the pieces work together.

Llawlietz

nice!

igiveupnow

This is how you deliver checkmate with K+B. https://m.youtube.com/watch?v=3f9QdjJ54jw

spots100

I learned it quickly watching the link from IpswichMatt and I only had to watch the video once and practice a bit. Thanks!

wollyhood
Rat1960 wrote:

@wollyhood but once you have the itch you just have to scratch. It teaches you about two pieces working together. Then you take that lesson to your middle games, it is not about the actual how-to mate.

Right ok, good way to view B+N / B+N+K and other unlikely mate relevance.