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April 18, 2020

Saturday Afternoon Chess thread 04-18-2020

WIM Tea Gueci 02.jpg
WIM Tea Gueci (ITA)


Moviegique will be along later with the movie thread. As always, the chess/dress pr0n thread is an open thread, so there is no such thing as an off-topic comment.



Beginner Problem - White To Play (Chess 3732)

Goal: White can force mate in 3
Hint: The King must be prevented from escaping to h7


20200418 - Problem 1.jpg
6k1/6p1/3Np2p/2P1P3/1p2Q1Pb/1P5P/1qr5/5RK1 w - - 0 1




Intermediate Problem - Black To Play (1132)

Goal: Black can force mate in 4
Hint: Start by deflecting the bishop


20200418 - Problem 2.jpg
r3r1k1/pp3ppp/2p5/8/3N1P1P/7b/PPQR1q1P/3R1B1K b - - 0 1



Crime Doesn't Pay

Here's an interesting piece by veteran chess commentator Bill Wall detailing all the incidents he could find of criminal activity involving chess in some way, starting with:

In 1622, Gioacchino Greco (1600-1634) was robbed of all his money (5,000 crowns) that he won in Paris from playing chess while on his way to London.

Some of the incidents are humorous, some are tragic, and some are just pathetic. Chess players are not always the most stable of individuals.

But this one just grinds my gears:

In 1989, the police raided a chess tournament in Los Angeles. The L.A.P.D. vice officers raided a nightly chess tournament held at Dad’s Donuts. They cited three men for gambling after finding $1.50 on the table. The police staged the raid after an undercover detective tried unsuccessfully to join a blitz chess game. The detective then pulled out his badge and said “all of you are under arrest,” as the L.A.P.D. swooped in.

I didn't realize that chess gambling had become such a yuuge problem in Los Angeles. I'd like to know who it was in the LAPD hierarchy who decided it would be worthwhile to expend departmental time and resources to setting up this sting operation. And for what? Are the citizens of Los Angeles safer because the LAPD bravely busted up a dangerous ring of chess ruffians?



Advanced Problem - White To Play (1126)

How does White secure a winning position? You don't have to play it out to the very end, but do show the crucial moves.

Hint: An amazing simplification will secure a winning position


20200418 - Problem 3.jpg
3K4/kr5R/1p2b3/8/8/N7/8/5B2 w - - 0 1



Dress Pr0n For The 'Ettes:




20200418 dress pr0n 01.jpg




20200418 dress pr0n 02.jpg




20200418 dress pr0n 03.jpg




20200418 dress pr0n 04.jpg




20200418 dress pr0n greece.jpg
Greetings From Greece




20200418 dress pr0n kate.jpg




20200418 dress pr0n melania.jpg

___________

Problem Solutions

Beginner Problem - White To Play


20200418 - Problem 1.jpg
6k1/6p1/3Np2p/2P1P3/1p2Q1Pb/1P5P/1qr5/5RK1 w - - 0 1

1.Rf8+ Kxf8
2.Qa8+ Ke7
3.Qe8#


Intermediate Problem - Black To Play


20200418 - Problem 2.jpg
r3r1k1/pp3ppp/2p5/8/3N1P1P/7b/PPQR1q1P/3R1B1K b - - 0 1

Mate in 4:

1...Bg2+
2.Bxg2 Re1+

You don't want 2...Qe1+ 3.Bf1 Qxf1+ 4.Rxf1

3.Rxe1 Qxe1+
4.Bf1 Qxf1#


Advanced Problem - White To Play


20200418 - Problem 3.jpg
3K4/kr5R/1p2b3/8/8/N7/8/5B2 w - - 0 1

1.Nb5+! Kb8

Not 1...Ka8 because 2.Bg2 Bc8 3.Nd6 and Black loses pretty much everything

2.Rxb7+! Kxb7

The start of the great simplification. Now White needs to snag the remaining bishop
3. Bg2+ Kb8 (or 3...Ka6 4. Nc7+ Ka5 5. Nxe6)

4.Nd4! Bg8

Why Bg8? The problem for Black is to find a square for his Bishop where White can't fork it (heh) with his knight. Trouble is, he can't! Let's look at some other options:

(4... Bg4 5. Nc6+ Kb7 6. Ne5+ Ka6 7. Nxg4)
(4... Ba2 5. Nc6+ Ka8 6. Nb4+)
(4... Bf7 5. Nc6+ Ka8 6. Ne5+)

Isn't that a kick in the head? No matter where he goes with the Bishop, the white knight will be able to catch him somewhere. Try it with some of the other options and see.

5.Nc6+ Kb7
6.Ne7+ Ka7
7.Nxg8 and wins.

Although it is a bit tricky. KBN v. K is a (difficult) win, made more so by the presence of a black pawn to complicate matters. But winning the pawn is not that tough:


7...Ka6
8.Kc7 Kb5
9.Nf6 Kc5
10.Nd7+ Kd4
11.Kxb6 winning.

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 paste 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 06:15 PM

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