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September 16, 2017

Saturday Afternoon Chess/Open Thread (Featuring Dress Pr0n) 09-16-2017

chess helps your brain.jpg(click for larger version)

Good afternoon morons and moronettes, and welcome to the Saturday Afternoon Chess/Open Thread, the only AoSHQ thread with content specifically for all of us chess nerds who pay homage in the temple of Caïssa, goddess of the chessboard. Also, dress pr0n. Each week, I pick out a few lovely, modest, conservative dresses for the 'ettes to admire and appraise. And, for those of you who aren't nerdly enough for chess, you can use this thread to talk about checkers, or other games, or politics, or whatever you wish, only please try to keep it civil. Nobody wants to get in the middle of a food fight on a Saturday afternoon. Unless you're starving.

Problem 1 - White To Play (177)

Hint: White mates in 2

20170916 - Problem 1.jpg
r3rn2/p7/3qp2k/1p5n/3P1p1p/1PPQ1P2/P1B2P2/6RK w - - 0 1


What about your chess GAINZZZ, brah?

Problem 2 - Black To Play (575)

White is threating Qxg7#. What is the best way for Black to stop this threat?

Hint: Set up a discovered attack

20170916 - Problem 2.jpg
6k1/3q1pp1/3b3B/4n3/8/6Q1/5PP1/5RK1 b - - 0 1

New at Chess?

Problem 3 - To Play (556)

Hint: White wins material

20170916 - Problem 3.jpg
4r2k/pR5p/6p1/4b3/3B4/2P2K2/1P6/8 w - - 0 1

(h/t ChessZebra)

Problem 4 - White To Play (BWTC 74)

Hint: White can force a mate in 9

20170916 - Problem 4.jpg
r1b4k/ppp2Bb1/6Pp/3pP3/1qnP1p1Q/8/PPP3P1/1K1R3R w - - 0 1

Endgame of the Week (576)

It is Black (yes, Black) to play. What can he do, if anything, to stave off the queening threats?

Hint: create mating threats

20170916 - Endgame.jpg
6r1/p1P2p2/3P3p/8/P7/5k2/8/7K b - - 0 1

For the 'Ettes -- Dress Pr0n

20170916 dress pr0n 01.jpg

20170916 dress pr0n 02.jpg

20170916 dress pr0n 03.jpg

20170916 dress pr0n 04.jpg

20170916 dress pr0n 05.jpg

20170916 dress pr0n 06.jpg


Solutions Update

Problem 1 - White To Play

20170916 - Problem 1.jpg
r3rn2/p7/3qp2k/1p5n/3P1p1p/1PPQ1P2/P1B2P2/6RK w - - 0 1

1.Qh7+ Nxh7

1.Rg6+ Nxg6 2.Qxg6# is also mate, but Black isn't forced to capture the rook. Ibstead of capturing he could do this

2.Rf6+ Kh8
3.Rh6+ Kg8

...and there's no easy path to a mate.

Problem 2 - Black To Play

20170916 - Problem 2.jpg
6k1/3q1pp1/3b3B/4n3/8/6Q1/5PP1/5RK1 b - - 0 1


Blocks the mating threat and now two White pieces are attacked and so he'll lose one of them.

2.Qe3 gxh6

Instead of that, I came up with this:

1... Nf3+
2. Qxf3 gxh6

Which doesn't win material. But it does stop the mate.

Problem 3 - White To Play

20170916 - Problem 3.jpg
4r2k/pR5p/6p1/4b3/3B4/2P2K2/1P6/8 w - - 0 1

1.Rb8! Rxb8

1...Rg8 loses to 2.Bxe5#

2.Bxe5+ Kg8
3.Bxb8 and White's material advantage should be enough to win

Problem 4 - White To Play

20170916 - Problem 4.jpg
r1b4k/ppp2Bb1/6Pp/3pP3/1qnP1p1Q/8/PPP3P1/1K1R3R w - - 0 1

1.Qd8+! Qf8

Not 1...Bf8 because 2.Rxh6+ Kg7 3.Rh7#

2.Rxh6+ Bxh6
3.Qf6+ Qg7
4.Rh1 Bh3

Or 4...Qxf6 5.exf6 Nd2+ 6.Kc1 Nb3+ 7.axb3 Bh3 8.Rxh3 f3+ 9.Rxh6# is an alternate line.

5. Rxh3 Nd2+
6. Kc1 Nb3+
7. axb3 Qxf6
8. exf6 Re8
9. Rxh6# 1-0

Endgame of the Week (576)

20170916 - Endgame.jpg
6r1/p1P2p2/3P3p/8/P7/5k2/8/7K b - - 0 1

This is one of those problems I would never be able to see OTB, but only by working through the position a few times. Maybe a GM could see it, though.

White is about to queen one of his advanced pawns, but his King is positioned poorly. Black takes advantage of this by playing


This sets up a mating threat. If now 2.d7, then 2...Rg5 followed by 3...Rh5#.


Now Black can't play 2...Rg5 because 3.c8=Q Rh5+ 4.Qh3 or instead 3.Kh3 f5 4.Kh4 and Black has pretty much hosed himself. Instead, Black plays


This moves cuts off g4 as an escape square for White's king and also blocks the c8-h3 diagonal in case of White moving c8=Q.


Trying to escape via h5


Oops, that won't work, let's try attacking the rook

4.Kh2 Rg5

There's no stopping 5...Rh5#.

My chess app saw all that and instead played 3.c8=Q Rxc8 4.Kh3 Rd8 which avoids the immediate mate but he loses most of his material doing so.

Hope to see you all next week!


Note: that cryptic line of letters and numbers you see underneath each board diagram is a representation of the position in what is known as "Forsyth-Edwards Notation", or F.E.N. It's actually readable by humans. Most computer applications nowadays can read FEN, so those of you who may want to study the position, you can copy the line of FEN and paste into your chess app and it should automatically recreate the position on its display board. Or, Windows users can just "triple click" on it and the entire line will be highlighted so you can copy and past it into your chess app.


So that about wraps it up for this week. Chess thread tips, suggestions, bribes, rumors, threats, and insults may be sent to my yahoo address: OregonMuse little-a-in-a-circle yahoo dott com.

digg this
posted by OregonMuse at 05:03 PM

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