[blind-chess] Re: Spoiler Alert Problem WAC100
- From: "Jeffrey Turner" <jturner522@xxxxxxxxx>
- To: <blind-chess@xxxxxxxxxxxxx>
- Date: Wed, 12 Dec 2012 13:57:54 -0500
Edward,
What I like better is for White to offer to exchange Bishops on a5
immediately. If Black accepts the exchange, the White King has advanced up
to a5 with the recapture and is ready to support the advance of the b pawn.
Black will have no other choice than to back up and make way for an eventual
pawn promotion by White. With all his pawns being blocked, and no Bishop, he
no longer has the luxury of letting his King remain static. If instead,
Black refuses the offered exchange, his best play is probably to take the
pawn abandoned by the White Bishop on f4. But now, the White Bishop is there
to support the b pawn advancement, and although Black has a passed pawn, he
doesn't have time to advance it because of his King's immediate trouble.
I'm really interested in finding out what Paul has to say on the matter.
Jeffrey
From: blind-chess-bounce@xxxxxxxxxxxxx
[mailto:blind-chess-bounce@xxxxxxxxxxxxx] On Behalf Of Eddyz69@xxxxxxx
Sent: Wednesday, December 12, 2012 11:44 AM
To: blind-chess@xxxxxxxxxxxxx
Subject: [blind-chess] Spoiler Alert Problem WAC100
Hello Jeff and all,
I am re posting my solution.
Edward
In a message dated 11/17/2012 2:02:26 P.M. Eastern Standard Time,
Eddyz69@xxxxxxx writes:
Hello Puzzlers,
Let's start with some analysis. The black pawns are all blocked. The black
bishop has some mobility. Can white make a forcing move exchanging bishops?
If white can capture the black bishop white wins!
Doctor Z is ready to operate. My solution:
1. b6+ (It's a checking pawn fork.)
if 1. -Kxb6 (King takes pawn.)
2. Ba5+
2. -Kxa6 (King takes pawn.)
3. Bxc7 (Bishop takes bishop.) Kb7
4. Ba5 Ka6
5. Bd8 Ka7/Kb7
6. Kb5
With the black pawns blocked, the black king must move constantly. Soon the
white king takes the c5 black pawn and wins.
or
2. -Kc6
3. Bxc7 (Bishop takes bishop.) Kxc7 (King takes bishop.)
4. Kb5 Kb8/Kd6
5. Kb6
The black king cannot get behind the white pawns on the king side because of
the white pawns crisscrossing the board. It will be easy for the white king
to protect the white pawn at a6 until pawn promotion.
if 1. -Bxb6 (Bishop takes pawn.)
2. Kb5
If the black king moves to a8 or b8, the white king captures the black
bishop at b6.
2. -Bc7
3. Be3 (Bishop targets c5 black pawn.) Bb6
4. Bxc5 (Bishop takes black pawn.) Bxc5 (Bishop takes bishop.)
5. Kxc5 (King takes bishop.) Kxa6 (King takes pawn.)
Now, it's simple for the white king to get the c4 white pawn promoted. To
win white must get a pawn promoted.
Edward
In a message dated 11/9/2012 2:02:26 P.M. Eastern Standard Time,
rrdinger@xxxxxxxxxx writes:
Good Morning Puzzlers,
Another WAC series problem. This will finish the fifth section.
This problem is from Mario Lang's puzzle web page at:
http://delysid.org/chess/epd.cgi
Problem WAC100
White to move
FEN Problem Setup:
8/
k1b5/
P4p2/
1Pp2p1p/
K1P2P1P/
8/
3B4/
8
w - - 0 1
Short Algebraic Problem Setup:
White: Ka4, Bd2, Pa6, Pb5, Pc4, Pf4, Ph4
Black: Ka7, Bc7, Pc5, Pf5, Pf6, Ph5
Other related posts:
