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Another chess puzzle

#1 User is offline   Trumpace 

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Posted 2011-April-13, 14:31

White to play and mate in two moves.

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#2 User is offline   manudude03 

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Posted 2011-April-13, 15:49

hmmm call me blind, but I don't see how to checkmate in 2 if black plays b5-b4. Any other move he does and I see checkmate (c6-c7 then either promote to Q or take the pawn with your rook if he takes a5)
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#3 User is offline   mattias 

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Posted 2011-April-13, 15:58

 Trumpace, on 2011-April-13, 14:31, said:

White to play and mate in two moves.


This is a cute one.
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#4 User is offline   manudude03 

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Posted 2011-April-13, 16:27

ah, just ran it through a chess solver, so don't give me credit for it.

Spoiler

Wayne Somerville
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#5 User is offline   Hanoi5 

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Posted 2011-April-13, 16:28

Was black's last move b2-b4?

 wyman, on 2012-May-04, 09:48, said:

Also, he rates to not have a heart void when he leads the ♥3.


 rbforster, on 2012-May-20, 21:04, said:

Besides playing for fun, most people also like to play bridge to win


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#6 User is offline   Trumpace 

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Posted 2011-April-13, 16:37

 Hanoi5, on 2011-April-13, 16:28, said:

Was black's last move b2-b4?


I don't know. You tell me :-)

btw did you mean b7-b5?

This post has been edited by Trumpace: 2011-April-13, 22:22

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#7 User is offline   gwnn 

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Posted 2011-April-14, 02:56

the attachment is gone :(
... and I can prove it with my usual, flawless logic.
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#8 User is offline   Hanoi5 

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Posted 2011-April-14, 03:51

 Trumpace, on 2011-April-13, 16:37, said:

I don't know. You tell me :-)

btw did you mean b7-b5?


That's what I meant.

 wyman, on 2012-May-04, 09:48, said:

Also, he rates to not have a heart void when he leads the ♥3.


 rbforster, on 2012-May-20, 21:04, said:

Besides playing for fun, most people also like to play bridge to win


My YouTube Channel
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#9 User is offline   Trumpace 

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Posted 2011-April-14, 10:18

 gwnn, on 2011-April-14, 02:56, said:

the attachment is gone :(


That is strange, I can see it. Were you logged on when you tried to view it?

In any case, seems like this forum software has some bugs around attachments.
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#10 User is offline   gwnn 

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Posted 2011-April-15, 02:21

I see it now too.

Say you have the following position:

White: Ba4
Black: Kd1, Rb5, Bd5

This position occurred in a legal game (black to move), but unfortunately the white king fell from the table and everyone forgot where it was. Can you help?
... and I can prove it with my usual, flawless logic.
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#11 User is offline   Trumpace 

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Posted 2011-April-17, 11:57

 gwnn, on 2011-April-15, 02:21, said:

I see it now too.

Say you have the following position:

White: Ba4
Black: Kd1, Rb5, Bd5

This position occurred in a legal game (black to move), but unfortunately the white king fell from the table and everyone forgot where it was. Can you help?


This seems impossible! Can you please post a hidden hint?
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#12 User is offline   gwnn 

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Posted 2011-April-20, 15:39

 Trumpace, on 2011-April-17, 11:57, said:

This seems impossible! Can you please post a hidden hint?

Spoiler

... and I can prove it with my usual, flawless logic.
      George Carlin
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#13 User is offline   Foxx 

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Posted 2011-April-20, 15:52

White's last move was to capture a Black pawn.

I have Raymond Smullyan's "Arabian Knights" book, which contains this puzzle and many others.
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#14 User is offline   Fluffy 

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Posted 2011-April-21, 06:36

 gwnn, on 2011-April-20, 15:39, said:

Spoiler


I am afraid for a newbie like me only the full solution will do :(
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#15 User is offline   gwnn 

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Posted 2011-April-21, 08:13

last hint:
Spoiler

warning, solution:
Spoiler

... and I can prove it with my usual, flawless logic.
      George Carlin
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#16 User is offline   Trumpace 

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Posted 2011-April-24, 15:43

 gwnn, on 2011-April-21, 08:13, said:

last hint:
Spoiler

warning, solution:
Spoiler



Nice one. I can't believe I didn't consider that, especially given the puzzle which started this thread!
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#17 User is offline   vuroth 

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Posted 2011-May-04, 13:14

Wish I could see the image. :(
Still decidedly intermediate - don't take my guesses as authoritative.

"gwnn" said:

rule number 1 in efficient forum reading:
hanp does not always mean literally what he writes.
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#18 User is offline   Trumpace 

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Posted 2011-May-04, 20:02

 vuroth, on 2011-May-04, 13:14, said:

Wish I could see the image. :(


Strange! I can see it. gwnn seemed to have similar problems too...
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#19 User is offline   y66 

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Posted 2011-May-04, 20:38

Saw it when you first posted. Then it disappeared. Then reappeared. It's there now for me. Fun problem but too hard for me.
If you lose all hope, you can always find it again -- Richard Ford in The Sportswriter
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#20 User is offline   jjbrr 

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Posted 2012-December-19, 16:35

White to win

Posted Image
OK
bed
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