# chess online

## 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_nl26-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''
 poipoi26-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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