Author |
Topic: Pawn Beats Rook (Chess) (Read 831 times) |
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender: 
Posts: 4489
|
In this standard chess puzzle it is White to play and win.
|
|
 IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
why_linux_BSD_rule
Newbie
Posts: 6
|
 |
Re: Pawn Beats Rook (Chess)
« Reply #1 on: Jan 29th, 2004, 7:40pm » |
 Quote  Modify
|
Guessing more than one move left (may this answer is too obvious)
1. check it either from H6 ,E4, B1. H5
2. Take the rook in the next move (defesive shot)
3. corner the king and kil it MUHAHAHAHHAHA
|
| « Last Edit: Jan 29th, 2004, 7:50pm by why_linux_BSD_rule » |
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #2 on: Jan 29th, 2004, 9:29pm » |
Quote Modify
|
Quote:
1. check it either from H6 ,E4, B1. H5
2. Take the rook in the next move (defesive shot)
3. corner the king and kil it MUHAHAHAHHAHA |
|
1. That White piece is a king, not a queen.
2. That White pawn is moving up the board.
3. With what?
|
|
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
ziep
Newbie
Posts: 12
|
|
Re: Pawn Beats Rook (Chess)
« Reply #3 on: Jan 30th, 2004, 4:59am » |
Quote Modify
|
Why is this famous position mirrored?
|
|
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #4 on: Jan 30th, 2004, 8:10am » |
Quote Modify
|
Quote:| Why is this famous position mirrored? |
|
Does it matter?
|
|
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
ziep
Newbie
Posts: 12
|
|
Re: Pawn Beats Rook (Chess)
« Reply #5 on: Jan 30th, 2004, 8:46am » |
Quote Modify
|
on Jan 30th, 2004, 8:10am, THUDandBLUNDER wrote:
Not for the solution, no. But to me, it's like presenting e/c=mc as an original equation.
|
| « Last Edit: Jan 30th, 2004, 8:47am by ziep » |
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #6 on: Jan 30th, 2004, 9:13am » |
Quote Modify
|
The puzzle is not being posed as though it were 'original'.
Would you rather I give the author's name so that everybody can Google the solution?
|
| « Last Edit: Jan 30th, 2004, 10:31am by ThudnBlunder » |
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
Sameer
Uberpuzzler
Pie = pi * e
Gender:
Posts: 1261
|
|
Re: Pawn Beats Rook (Chess)
« Reply #7 on: Jan 30th, 2004, 10:26am » |
Quote Modify
|
on Jan 30th, 2004, 9:13am, THUDandBLUNDER wrote:| Would you rather I give the author's name so that everybody can Google the solution? |
|
LOL, I am not good at chess.. i wouldn't mind it 
|
|
IP Logged |
"Obvious" is the most dangerous word in mathematics.
--Bell, Eric Temple
Proof is an idol before which the mathematician tortures himself.
Sir Arthur Eddington, quoted in Bridges to Infinity
|
|
|
ziep
Newbie
Posts: 12
|
|
Re: Pawn Beats Rook (Chess)
« Reply #8 on: Jan 30th, 2004, 5:43pm » |
Quote Modify
|
on Jan 30th, 2004, 9:13am, THUDandBLUNDER wrote:The puzzle is not being posed as though it were 'original'.
Would you rather I give the author's name so that everybody can Google the solution? |
|
I 'd like you to give the author's name when you post the solution ( which, in this case, is rather complex), but i fail to see why you mirrored the original position.
Never mind, it's a classic and you were right to post it. Open hint: black is happy to trade his rook for the pawn, so white has to find a way to prevent that. But when he seems to have pulled it off, black has a clever counterblow...
|
|
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #9 on: Jan 30th, 2004, 6:05pm » |
Quote Modify
|
Quote:| ...but i fail to see why you mirrored the original position. |
|
In fact, mirrored is how I first saw the puzzle and therefore how I remember it.
Quote:| I 'd like you to give the author's name when you post the solution |
|
When somebody gets the solution I will not only give the author's name but also the story of how he did it. (You are not related, are you?)
|
| « Last Edit: Feb 8th, 2004, 3:48am by ThudnBlunder » |
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
why_linux_BSD_rule
Newbie
Posts: 6
|
|
Re: Pawn Beats Rook (Chess)
« Reply #10 on: Jan 31st, 2004, 12:46am » |
Quote Modify
|
my bad if that was a king, but i dont get ur question. is it to win a game in one move (impossible!) or a certain move set which leads to definite victory
|
|
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #11 on: Jan 31st, 2004, 8:29am » |
Quote Modify
|
Quote:| or a certain move set which leads to definite victory |
|
That's right, demonstrate a way for White to win.
|
|
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
unkwoop
Guest
|
|
Re: Pawn Beats Rook (Chess)
« Reply #12 on: Feb 1st, 2004, 7:08pm » |
Quote Modify
 Remove
|
Nice puzzle! I'm not sure if I've thought of everything but here goes:
1. f7
Black has to stop the queening, but can't threaten the pawn directly, so is forced to check the king. His only other option is to come down the board and then try for a perpetual check along the h and g files (if white king moves onto f black can skewer the king) but this is defeated by the fact that white can zigzag down g and h and finally move onto f3 after which black can no longer check the king. If Black's king was on g1 instead of h1 I think this would work! But it doesn't so:
1 f7 Re6+
White has to stop black from threatening the pawn by coming onto the f file which means either moving onto the f file or staying on the g. If the king moves to g7 then the rook can pin the pawn with Re7 and take the pawn next move. A move onto the f file by the white king is also bad because Re1 threatens to skewer the promoted queen next move (if white doesn't promote then black still plays Rf1 and takes the pawn/queen either way) so the only move white has is:
2 Kg5 Re5+
3 Kg4 Re4+
4 Kg3 Re3+
5 Kf2
Now black can't make a safe check and can't move somewhere where he can skewer the queen safely after the promotion.
White should win kith a King and Queen vs a King and Rook
|
|
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #13 on: Feb 1st, 2004, 8:03pm » |
Quote Modify
|
Quote:| White should win kith a King and Queen vs a King and Rook |
|
5............Re4
6. f8=Q Rd4+
|
|
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
unkwoop
Guest
|
|
Re: Pawn Beats Rook (Chess)
« Reply #14 on: Feb 1st, 2004, 9:00pm » |
Quote Modify
Remove
|
1 - I assume you mean Rf4+
2 - Dammit! 
All is not lost though I think, but this does make the problem even nicer!
If 5 ... Re4 then
6 f8=R
Now, Rf4+ is obviously a loosing move and white is threatening Rh8+ then mate. So
5 Kf2 Re4 (anything else and white can queen next move)
6 f8=R Rh4
7 Kg3
Now white threatens mate with Rg1++ and is also treatening blacks unprotected rook. With no way to counteract both threats black is either mated or loses his rook. A loss either way. Nice twist! Surely black has run out of tricks now.
|
|
IP Logged |
|
|
|
ThudnBlunder
wu::riddles Moderator
Uberpuzzler
The dewdrop slides into the shining Sea
Gender:
Posts: 4489
|
|
Re: Pawn Beats Rook (Chess)
« Reply #15 on: Feb 2nd, 2004, 12:03am » |
Quote Modify
|
Yes, unkwoop. That's it.
In fact, from the starting position it is mate in 26.
(Black plays the boring 3...Kg2)
Anyway, it's quite a famous puzzle.
See http://www.chessbase.com/puzzle/christmas2003/chr03-6a.htm
Quote:| White should win kith a King and Queen vs a King and Rook |
|
Actually, winning with K + Q vs. K + R within 50 moves is not that easy against perfect play.
|
| « Last Edit: Feb 2nd, 2004, 7:26am by ThudnBlunder » |
IP Logged |
THE MEEK SHALL INHERIT THE EARTH.....................................................................er, if that's all right with the rest of you.
|
|
|
|
RIDDLES SITE
WRITE MATH!
Home 
Help 
Search 
Members 
Login 
Register
Reply
Notify of replies
Send Topic
Print