Can you deliver one of these endgame check-mates?

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Fetoxo
1# King+rook vs. King
2# King+two bishops vs. King
3#King+bishop+knight vs. King
4#King+two knights vs. King+pawn.
I know to deliver the 1#, 2# is hard for me,but i did it once.
Fetoxo
I have an extra one:
5# King+queen vs. King+two pawns. It's hard.
Carjbee
I got 1 and 2 but 3 and 4 is just to hard
tygxc

Every chess player should know the 5 basic checkmates

  1. KQ vs. K
  2. KR vs. K
  3. KBB vs. K
  4. KBN vs. K
  5. KNN vs. KP
Fetoxo
KNN vs. KP is impossible. Even the computer don't know to deliver it.
magipi
chessdragon91 wrote:
I have an extra one:
5# King+queen vs. King+two pawns. It's hard.

What position do you have in mind? There might be some tricky ones (where both pawns are close to queening), but generally this should be super easy.

tygxc

@6

KNN vs. KP is possible if the pawn is not too far advanced.
One knight must block the pawn.
The king and the other knight must drive the king to the corner.
Then the second knight releases the pawn to run as it goes on to deliver checkmate.
Here is an example game where it happened:

https://www.chessgames.com/perl/chessgame?gid=1151993

magipi
chessdragon91 wrote:
KNN vs. KP is impossible. Even the computer don't know to deliver it.

Which position? (Half of these are possible, half are not). Which computer? What depth?

Fetoxo
I play this game with maximum computer.
Fetoxo
This position is in the drills.
Fetoxo
What do you think about it?
Alexander29114

K+N+N vs K+P is not worth learning and it’s too rare

Fetoxo
But if you play much then it's important. You can have a game with KNN vs. KP.
LikeChess78

The KR vs K is easy. The 2nd one (two bishops) was hard to learn, but I learnt it last week. The 3rd one idk I haven't started learning it yet, I may start it soon. The 4th one is not OK. One time I made a "King and 2 knights vs lonely king" position and I played as lonely king and played against Maximum chess.com engine. Engine didn't mate me with 2 knights and 50 move rule happened and we drew. In 2 knights mate, opponent has to blunder or make a mistake to make you able to checkmate before draw.

SmartPaperCutter

4 is too rare to be relevant

Fetoxo

#16 the KNN vs. KP only possible if your opponent has a pawn left. As I write: „KNN vs. K[P]”. The pawn prevents stalemate at the key moment. But if the pawn is too far advanced, then it's impossible as you write.

Fetoxo
this is the border.
tygxc

@17

"4 is too rare to be relevant"
++I have saved many lost positions by going for it.
It is surprising how many chess players cannot checkmate.

SmartPaperCutter
tygxc wrote:

@17

"4 is too rare to be relevant"
++I have saved many lost positions by going for it.
It is surprising how many chess players cannot checkmate.

Will learning how to checkmate with two knights help you in an actual game? Learn something useful like tactics, not this trash.

tygxc

You cannot 'learn' tactics, but you can learn the 5 basic checkmates.