[blind-chess] Re: Chris, Re: Possible Spoiler, Problem WAC002
- From: "Chris C." <cchaffin@xxxxxxxxxxxx>
- To: <blind-chess@xxxxxxxxxxxxx>
- Date: Thu, 27 May 2010 16:21:30 -0400
Hi Richard,
I apologize for the mistake, I misread the problem.
Even though my screen reader told me Rb3, for some reason I put it on b6,
smiles.
Okay, I will take it a look over, and put my thoughts in another email.
Chris
----- Original Message -----
From: R Dinger
To: blind-chess@xxxxxxxxxxxxx
Sent: Thursday, May 27, 2010 12:26 PM
Subject: [blind-chess] Chris, Re: Possible Spoiler, Problem WAC002
Hi Chris,
Sorry I am slow in response, but I was gone all day Wednesday.
I am having a little trouble following your approach as your first move is:
1... Rb3, which is where you already are, so did you mean 1... Rb6 (other end
of board?).
But first let us step back and take a look at the problem in general.
* The position is well blockaded on both sides.
* Black has two passed Pawns, which are very powerful!
* White must blockade the passed Pawns at all costs.
* The Black D Pawn currently prevents White from moving to help the White
Rook.
Clearly, Black wants to get at least one of those passed Pawns to the first
rank safely.
IN general, most chess tactics are solved by looking for "forcing" moves.
Forcing moves are those moves that limit your opponents response or force his
reply. Forcing is not always literal as crazy opponents can sometimes ignore
your move, but in general moves like captures will be followed by recaptures in
order to maintain equality in the game and moves like checks literally do force
a response.
So what are forcing moves? The most common that come to mind are:
* a check
* a mate threat
* a capture
* a threat of capture
So my advice for all of these combination problems is to first examine all
checks and captures and other forcing moves to see what those moves "FORCE" the
opponent to do in response.
Richard
----- Original Message -----
From: Chris C.
To: blind-chess@xxxxxxxxxxxxx
Sent: Wednesday, May 26, 2010 12:13 PM
Subject: [blind-chess] Possible Spoiler, Problem WAC002
Okay... first thoughts:
1. Knowing that it would be very difficult to mate with only a rook, you
are looking to promote a pawn.
At this moment, the best one for this is located on d3, but is highly
guarded by whites rook.
2. whites king is not able to move up any squares because of the pawn
located on f5. So he is trapped on rank 3 until he get to file h.
3. whites rook is restricted to his movements... on current rank 2, files c
to file g. Has rank 1, but can only go higher than rank 2 on file g.
4. Black definitely has control of more of white squares.
With all said, this is what I was thinking...
I first thought black should:
1... Rd6
2. Rd1 d2
But this would restrict blacks rook to file d, because if he moves off of
it, he would loose the pawn on d2 since there is no other way of protecting it.
So I then came up with this.
1. ... Rb3
Now if played right, you should have at least one promoted pawn, and maybe
your rook and a promoted pawn, or two promoted pawns.
If you only get one promoted pawn out of it, then there is a good
possibility that the white rook is gone.
And if the white rook is gone, then your promoted pawn can promote
hopefully at least one more pawn to help you out.
Not sure how to write things since white has different move choices.
But I will try...
2. not sure about white but black... c3
3.1 If white Rxd3, then ... then cxb2
or
3.2 If white bxc3... then Rxc3
from move3.1:
4.1.1 Rxb3... axb3
or
4.1.2 Rd2... b1 = Q, promote pawn.
or
4.1.3 if white moves rook anywhere else except for checking your king ...
Rxa3
From move 3.2:
4.2.1 Rd1 Rxa2
or
4.2.2 Ra2Rxc2
Sorry for the lengthy email, hope all of this makes sense.
Just my first thoughts.
Chris
If white bxc3, then ... Rxc3
----- Original Message -----
From: R Dinger
To: chess
Sent: Wednesday, May 26, 2010 9:27 AM
Subject: [blind-chess] Problem WAC002
Good Morning Puzzlers,
This problem is from Mario Lang's puzzle web page at
http://delysid.org:80/chess/epd.cgi
and is reported to be from Fred Reinfield's book "Win At Chess" 1958.
Problem WAC002
--------------------------------------------------------------------------------
Black to move
FEN Problem Setup:
8/
7p/
5k2/
5p2/
p1p2P2/
Pr1pPK2/
1P1R3P/
8
b - - 0 1
Short Algebraic Problem Setup:
White: Kf3, Rd2, Pa3, Pb2, Pe3, Pf4, Ph2
Black: Kf6, Rb3, Pa4, Pc4, Pd3, Pf5, Ph7
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