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October 20, 2018

Chess Thread 10-20-2018

barron chess.jpg


Pic Note

BREAKING: Barron Trump Awarded Chess Grandmaster Title reads the headline. Of course, it's fake news. Barron Trump has never been awarded the Grandmaster title.

Also:

In the 1970s and 80s, Donald Trump studied under the tutelage of players like Bobby Fischer. Eventually, he won hundreds of chess tournaments abroad before retiring at the ripe old age of 40.

Uh-huh. Right. Although it does have some surface plausibility. Donald Trump looks like he's playing 3D chess while his enemies are still trying to figure out how to tie their shoes. Perhaps this is actually a parody news site. There's another story, Chelsea Clinton Calls Barron Trump "A Creepy Psycho". But at least he's a chess genius.


Easier Problem - White To Play (804)

What is the fastest way White can finish off Black?

Goal: White can force a mate in 2; there is more than one solution
Hint: The best first move is not a check


20181020 - Problem 1.jpg
8/6p1/6kp/5R2/5K2/3R4/8/1B6 w - - 0 1



More Challenging Problem - White To Play (799)

This problem is devious. You may look at it and think, as I did, "What's so hard about it? All White has to do is force Black's king off the back rank with a check, then skewer his rook on the next move, easy peasy." Actually, no. That doesn't work. Because if you look at the position for a few minutes, you will soon see that Black can set a stalemate trap that effectively prevents White from scoring an early knockout.

Goal: White can force a win
Hint: The technique here for White is to use the skewer threat to force Black into a knight fork.


20181020 - Problem 2.jpg
3Nk3/r7/7R/8/3K4/8/8/8 w - - 0 1


Dress Pr0n For The 'Ettes:




20181020 dress pr0n 01.jpg




20181020 dress pr0n 02.jpg




20181020 dress pr0n 03.jpg



Look at these little munchkins:

20181020 dress pr0n 04.jpgGreetings From Wales



20181020 dress pr0n 05.jpg

This photo is bad because colonialism.


___________

Solutions Update

Easier Problem - White To Play


20181020 - Problem 1.jpg
8/6p1/6kp/5R2/5K2/3R4/8/1B6 w - - 0 1

With such an overwhelming material superiority, there are many ways for White to force checkmate. But the quickest is a mate in two, and I've found 3 distinct solutions. Perhaps you can find more.

All of the solutions I've found start with:

1. Rf8!

This move cuts off any escape to the back rank as well as maintaining control of the 'f' file.

Now Black has 3 possible moves, all of which end up in a quick mate:

Solution #1: 1...Kh7 2.Rd7#
Solution #2: 1...Kh5 2.Rh3#
Solution #3: 1...h5 2.Rd6#


More Challenging Problem - White To Play


20181020 - Problem 2.jpg
3Nk3/r7/7R/8/3K4/8/8/8 w - - 0 1

1.Rh8+ Kd7

Not 1...Ke7 2.Nc6+ and Black can immediately resign.

2.Rh7+ Kd6

This is the stalemate trap. Which is the result if White takes the rook. There is no legal move for Black after 3.Rxa7.

3.Nf7+

Black has 3 options here:

If 3...Ke6 then the skewer will work: 4.Ng5+ Kd6 5.Rxa7 and wins

If 3...Kc6 then 4.Ne5+ which morphs into the the main line (see below).

That leaves only

3...Kc7

4.Ne5+ Kb6

Black still must protect his rook from the skewer.

5.Nc4+ Ka6 (if 5...Kc6 then 6.Rxa7 is OK, because it's not stalemate as Kb5 is a legal move)

6.Rh6+ Kb7
7.Nd6+ Kb8

If 7...Ka6 then 8.Nc8+ wins the rook.

8.Rh8+ Kc7
9.Nb5+ and wins

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 05:12 PM

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