A puzzle for Rating 2400+ (very hard)

A puzzle for Rating 2400+ (very hard)

Posers and Puzzles

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N
Standard memberNicklasPersson

Joined
07 Mar 05
Moves
2255
02 Dec 06

I haven´t seen it here but it is quite probable.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Originally posted by Fat Lady
Perhaps that's why the puzzle is supposed to be difficult. It's clear that Black's last move must have been a king or rook move, hence O-O-O is impossible.
Oh yeah... Fat Lady! What happened to your ban?

M
Standard memberMephisto2

Joined
12 Mar 03
Moves
44411
02 Dec 06

Originally posted by Fat Lady
Perhaps that's why the puzzle is supposed to be difficult. It's clear that Black's last move must have been a king or rook move, hence O-O-O is impossible.
Of course. And most likely, Bigdogproblem will provide us with a version without the overhead 😉

k
Standard memberkbaumen

Sigulda, Latvia

Joined
30 Aug 06
Moves
4048
02 Dec 06

Originally posted by Alethia
Can Black castle? If he can't, it's very easy, and I'm not 2400+. More like 1500+!
Look at the pawns, think a little and then look at Fat lady's post.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Astound me with the solution. You're all better than I am... I can't see it.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06
1 edit

Originally posted by kbaumen
Perhaps people would like to see it here...

[fen]r3k3/p1p5/Q3K3/8/1N3BP1/6p1/6N1/8 w[/fen]

EDIT:Are you sure it's for GM's and IM's only?

EDIT2:To make a board show up here, you must use the 'insert board from FEN' function. Here is the code for this particular position - r3k3/p1p5/Q3K3/8/1N3BPP/6p1/6N1/8. It shows which pieces are on which squares ...[text shortened]... t there is a black rook on a8, b8 to d8 are empty, black king on e8 and f8 to h8 are empty.
I can't solve this one...

k
Standard memberkbaumen

Sigulda, Latvia

Joined
30 Aug 06
Moves
4048
02 Dec 06
1 edit

Originally posted by Alethia
Astound me with the solution. You're all better than I am... I can't see it.
It has already been posted. 1. Qa1 anything 2. Qh8#. As Fat lady said, castling is impossible. Last one was a king or a rook move.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Now you've changed it! There was a pawn on h4 before- it's in your FEN instructons!

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Tell me kbaumen then... the full answer and all your logic.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Originally posted by kbaumen
It has already been posted. 1. Qa1 anything 2. Qh8#. As Fat lady said, castling is impossible. Last one was a king or a rook move.
No- the Pawn on g3 could have played hxg3 last move, so it might not happen! I'm so confused!

k
Standard memberkbaumen

Sigulda, Latvia

Joined
30 Aug 06
Moves
4048
02 Dec 06

Originally posted by Alethia
Now you've changed it! There was a pawn on h4 before- it's in your FEN instructons!
No, I haven't, you have a problem with quoting. Look at the original post, the pawn is there. And it doesn't matter anyway.

A
Standard memberAlethia

Joined
25 Nov 06
Moves
1434
02 Dec 06

Originally posted by kbaumen
No, I haven't, you have a problem with quoting. Look at the original post, the pawn is there. And it doesn't matter anyway.
But it does matter! Correct me, but couldn't Black have played just now, hxg3? Then he may be able to castle.

M
Standard memberMephisto2

Joined
12 Mar 03
Moves
44411
02 Dec 06

Originally posted by Alethia
But it does matter! Correct me, but couldn't Black have played just now, hxg3? Then he may be able to castle.
Yes, it does matter. Perhaps this was edited in the diagram?

k
Standard memberkbaumen

Sigulda, Latvia

Joined
30 Aug 06
Moves
4048
02 Dec 06

Originally posted by Alethia
But it does matter! Correct me, but couldn't Black have played just now, hxg3? Then he may be able to castle.
Ok, ok, it matters, but there is a white pawn on h4, so that does it. Black can't castle. Period.

k
Standard memberkbaumen

Sigulda, Latvia

Joined
30 Aug 06
Moves
4048
02 Dec 06

Originally posted by Mephisto2
Yes, it does matter. Perhaps this was edited in the diagram?
Weird. In the original post, there is a pawn on h4. In Alethia's post, where he quoted me, the pawn is somehow missing.