# chess online

## CHESS PUZZLE #5372

 Added by: kingdawar Added on: 24-Jul-08 Description: Composed by Florian Janos Kovacs. More information is very welcome! Difficulty: online chess puzzle #5372 Attempts: 1917 Solved: 1039 (54%)
White to move, mate in 2
From Comment
blahamen
15-Nov-11, 20:41

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That's BS, because black should check with a queen or a rook. Not a true mate in two.
 kingdawar26-Feb-12, 17:34

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Are you sure?
blahamen
26-Feb-12, 19:32

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Yep, I see now that tricky bishop doing its job
najo2
28-Jan-13, 00:09

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It is no correct !!!
1. ... ,h1=Q+ 2. Bh3, Qxh3+ 3. Kg6, g1=Q+ and more...
youk
28-Jan-13, 00:56

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najo2, you missed the 2Bh3++
The Ra8 is important..
 syiedan8628-Jan-13, 01:16

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a1=Q
y not first move by black is a1=Q?
suentun
28-Jan-13, 02:32

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1. ... Nc3
2. a1=Q Ba6#
or
1. ... Nc3
2. h1=Q+ Bh3#
either way it doesnt matter
 marsman28-Jan-13, 03:14

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Deja Vu
I once lost a game like that
 moskito28-Jan-13, 03:29

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There are many possibilities
But on each one it is mate in 2.
If black checks with a Queen, white just blocks it with the Bishop and ... Mate
afoot2
28-Jan-13, 04:00

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Mate in three?
What about if after Nc6 Black plays g1 = Q. Then after the Bishop moves Black can play Qg8. Then Rxg8 is mate in three?
 moskito28-Jan-13, 04:05

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@afoot2

1. Nc6 g1=Q
2. Bg4#

Again the Bishop blocks the new Queen and Black has no possibility to save his King.
afoot2
28-Jan-13, 04:17

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Not mate in three
Yes - I missed that! Thanks. Clever puzzle.
dracoargentum
28-Jan-13, 06:48

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Clever puzzle
Black's pawn at d2 is very important also. It keeps Black from checking White's King with c2-c1 =Q +.
_hann_
28-Jan-13, 07:47

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Nice puzzle
Indeed
 theimr28-Jan-13, 08:00

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1. Na6 also works, doesn't it?
How can black stop mate in 2 after this move?

1. ... h1=Q+
2. Bh3#

1. ... Kg8
2. Be6#

bobandyo
28-Jan-13, 08:32

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theimr -

n-a6 p-c1(q) stops mate in 2
 theimr28-Jan-13, 12:01

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@bobandyo

Thank you! Missed that one.
 macheide28-Jan-13, 12:48

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A very nice puzzle. Thanks.
 kansasjayhawk28-Jan-13, 13:37

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Good puzzle.
There's definitely more to the eye than appears at first.
bryden38
28-Jan-13, 15:27

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Sneeky little...
Took me a while to get figure this one out even with the answer...
jonellis
28-Jan-13, 15:42

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Yes indeed...

(1) White needs to get both N and B out of the way.

(2) The N must move first, in case Black decides to move 1... Kg8, allowing 2. Be6++ (checking through f7 and preventing escape from the back rank).

(3) After the White N move, if Black does NOT move his king (because of 2. Be6++), he must promote a pawn, after which a White B move is discovered check. Therefore Black's promotion must be to a Q or R (which is also the only way to check the White king, if it is the h-pawn that promotes), since a B could not escape from the promotion square (being blocked in) and a N not move far enough.

(4) For this discovered check to be mate, Black must be prevented from interposing his newly promoted Q or R on the back rank, or capturing White's R - even if it promotes with check as the h-pawn would. The B, of course, can move (when discovering check) to intercept on any file - including intercepting a Black check on the h-file - with one exception: it cannot move and block the c-file, so the block on that file must be made on White's first move by his N, therefore 1. Nc6! is the key.
fezzik
28-Jan-13, 16:42

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Hated it, even tho it was clever
I give this:

4 Stars difficulty
2 Stars Aesthetics.

This is one of those useless bits that is more about the cleverness of the creator of the puzzle than those solving the puzzle. I'd much rather solve realistic puzzles than artifices such as this.

Oh, and yeah, I failed to solve it in my first try.
 blitzkov28-Jan-13, 21:39

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Loved it
Very clever.
Nice setup