Chess Puzzle #5362

CHESS PUZZLE #5362

Added by:	throneseeker
Added on:	23-Jul-08
Description:	Problem # 93
Difficulty:	online chess puzzle #5362
Attempts:	1445
Solved:	1081 (74%)


White to move, mate in 2

Comments: (18) » Last

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yadasampati
26-Jan-13, 00:22

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Nice puzzle for this section

It takes some effort to see that the pawn promotion will create a mate threat on g7. It takes a little more effort to see that we have to promote to a knight, giving check, otherwise black has Rxg3

turbojet
26-Jan-13, 01:29

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There are other more simple ways to achieve mate in two using the king only, simple is better, I am sure most would agree.

yadasampati
26-Jan-13, 01:36

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@turbojet

You can try out "Another solution" with the "Options" link in the puzzle window. Most times it is better to do that before making a claim about it. I am really curious how you think a mate in two can be achieved "using the king only" ...

madthinker
26-Jan-13, 03:14

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@turbojet

I agree.

1.Kh1-g6+, and after 1...Kh8, then 2.Kxg7#

Much more simple.

yadasampati
26-Jan-13, 03:49

Comment deleted on 26-Jan-13, 03:50.

yadasampati
26-Jan-13, 03:57

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@madthinker

It looks like both of you (also turbojet) do not understand the principle of a puzzle.

Mate in 2 means that white can give mate in 2 moves, for ALL possible answers of black, meaning it is forced. After Kg1 (not Kh1), black can play Qxc5+ and then white clearly has no mate in 2

Your notation got me confused also: >> 1.Kh1-g6+, and after 1...Kh8, then 2.Kxg7# <<
It does not make sense at all:

- the king cannot move to h1, because it is on h1 already
- g6 is not check for black
- is it 1 ... g6 or 1 ... Kh8 ?
- amazing how your king can give checkmate ...

yadasampati
26-Jan-13, 04:01

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New king rules

Ok, i think i understand it now: 1.Kh1-g6+ is actually a new kind of move

ends
26-Jan-13, 05:54

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crazy discussion this...

phonybenoni
26-Jan-13, 08:39

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The real solution starts 1.Qxg7+!! Kxg7. White then moves 2.f8 and promotes to a knight, saying "Checkmate"!

"That's not mate", screams Black.

"Yes it is", says White. "That knight started the game on b1, so it's my Queen Knight. As a promoted piece it combines the powers of queen and knight, which delivers double check and mate."

**************

OK, maybe not.

bigdolphin
26-Jan-13, 08:42

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another variation

Another variation is Q:g7+,K:g7,f8=Q+,Kg6,Qg7 mate

ends
26-Jan-13, 09:12

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dude thats 3 moves!

pouligeekman
26-Jan-13, 10:02

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can we play 3 person chess? LOL

seanward
26-Jan-13, 10:52

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"The real solution starts 1.Qxg7+!! Kxg7. White then moves 2.f8 and promotes to a knight, saying "Checkmate"!

"That's not mate", screams Black.

"Yes it is", says White. "That knight started the game on b1, so it's my Queen Knight. As a promoted piece it combines the powers of queen and knight, which delivers double check and mate."

**************

OK, maybe not."

I don't know why but I'm crying while laughing over here. I think its because I'm seeing a couple of five year olds arguing back and forth over this in my head.

nni03
26-Jan-13, 11:59

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easyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy

luke_nl
26-Jan-13, 13:26

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not so easy

It is a good problem, because 1.Qxg7+ is so tempting. However, after 1...Kxg7 2.Qf8+ Kg6 it's not mate in two, but in three. I rated the difficulty as áverage''

poipoi
26-Jan-13, 13:28

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simply majestic puzzle.
Promoting the pawn to a queen allows checkmate to be forced. But not inside two moves against any defence.

puzzler77
26-Jan-13, 15:24

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phonybenoni

I believe you have an interesting point but let the knight portion be found else where! See

puzzle #90480.

phonybenoni
26-Jan-13, 16:09

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puzzler77

Too bad about the extra solutions. Maybe this version works better:

puzzle #90481

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CHESS PUZZLE #5362