Checkmate in 4

Mephisto2

Posers and Puzzles

02 Dec 05

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

A rather nasty one. White to play and mate black in 4.

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

Trying to do this in my head and can't quite finish it, trying along the lines of...

1.c8! Rfxc8
2.bxc8! Rxc8
3.Bd7! Kd5/6

Then get a little lost, especially trying to visualise in my head.
Is this anywhere near?
What do you use to analyse games? Is there a notebook on tinernet that you know of please?

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

Originally posted by TheGambit
Trying to do this in my head and can't quite finish it, trying along the lines of...

1.c8! Rfxc8
2.bxc8! Rxc8
3.Bd7! Kd5/6

Then get a little lost, especially trying to visualise in my head.
Is this anywhere near?
What do you use to analyse games? Is there a notebook on tinernet that you know of please?

No, this doesn't work fast enough. There is no mate in 2 after your moves.

For puzzles and analysis, I feel there is nothing better than a real board (several is even better) and notes.

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

I didn't think it would be that obvious + there was no way of boxing in the Queen with that method.

I would like to use a board but I play the majority of my chess whilst I am at work - don't tell my boss 😉 didn't know if there was a free chess pad on-line because the analyse board on here is pretty pap.

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

I think it should be 1.gxf8! (underpromote to a knight) but can't do the rest in my head right now......

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

Something like....

1.gxf8(K)! Kd6
2.Qxd2! Kxc7
3.Qd7! Kb6
4.Qxc6#

Not sure if they are the best moves for black though?

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

Originally posted by TheGambit
Something like....

1.gxf8(K)! Kd6
2.Qxd2! Kxc7
3.Qd7! Kb6
4.Qxc6#

Not sure if they are the best moves for black though?

4.Qxc6+ is not checkmate (Kxa7).

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

4.a8(N)#? Underpromote again to a Knight!! Nice problem

What is the notation for an underpromotion, I am sure mine is wrong?

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

Originally posted by TheGambit
4.a8(N)#? Underpromote again to a Knight!! Nice problem

What is the notation for an underpromotion, I am sure mine is wrong?

4.a8=N+ is not checkmate yet (Ka7 or Kc5 live one move longer).

I am afraid 1.gxf8=N+ is not the solution.

TheGambit

Joined: 16 Dec 04
Moves: 56692

02 Dec 05

Apologies for the time wasting exercise 😳

Think this one is probably beyond me.

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

1 edit

Originally posted by TheGambit
Apologies for the time wasting exercise 😳

Think this one is probably beyond me.

No need for apologies. Problems like these require an elimination process. Your input may help others (or you) to find other moves.

XanthosNZ

Cancerous Bus Crash

p^2.sin(phi)

Joined: 06 Sep 04
Moves: 25076

02 Dec 05

Originally posted by Mephisto2
A rather nasty one. White to play and mate black in 4.

[fen]1N3r1N/PPP3P1/p1r1kP2/pB4p1/K5P1/P3P3/1Bppp3/2Q1R3 w - - 0 1[/fen]

1. Bxc6!

Mephisto2

Joined: 12 Mar 03
Moves: 44411

02 Dec 05

Originally posted by XanthosNZ
1. Bxc6!

can you elaborate a bit? How does it go on after black's main replies?

fetofs

Joined: 01 May 05
Moves: 390

02 Dec 05

2 edits

Originally posted by Mephisto2
can you elaborate a bit? How does it go on after black's main replies?

1... d1=Q
2. gxf8=B! Qd2
3. c8=B+! #1

1...d1=R
2.gxf8=N+! Kd6
3.c8=N! #1

1...Rxf6
2. c8=N! d1=Q
3. gxf8=Q+ #1

joshbgosh10592

East McKeesport PA

Joined: 30 Sep 05
Moves: 938

02 Dec 05

1 edit

I use the 4 hand checkmate all the time against my friends but I an not sure of the coordinates when i figuar them out I will post or message who ever needs them just tell me who needs them and I will message them to you