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February 15, 2020

Saturday Afternoon Chess Thread 02-15-2020

GM Kateryna Lahno 01.jpg
GM Kateryna Lahno (UKR/RUS)


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 (443)

Goal: White can force mate in 3 moves
Hint: The bishop on a3 plays a key support role


20200215 - Problem 1.jpg
r6r/2p1R3/p4k1p/1p1b2p1/P1pP1qPP/B1P5/4QP2/R5K1 w - - 0 1






GM Kateryna Lahno 04.jpg
Kateryna



Intermediate Problem - White To Play (520)

Goal: White can force mate in 6
Hint: Black's king can be trapped on the back rank


20200215 - Problem 2.jpg
7k/1p5p/7P/pq6/8/8/R5P1/4R2K w - - 0 1



Advanced Problem - White To Play (444)

What is White's most efficient route to victory?


20200215 - Problem 3.jpg
8/r6p/PR2Pk2/8/8/1B1b4/8/6K1 w - - 0 1



Dress Pr0n For The 'Ettes:




20200215 dress pr0n 01.jpg




20200215 dress pr0n 02.jpg




20200215 dress pr0n 03.jpg




20200215 dress pr0n 04.jpg




20200215 dress pr0n hungary.jpg
Greetings from Hungary
("You know I think you're a pathetic little worm, don't you?")

(I think they wrote this song about her. True fact: I first heard this song 40+ years ago and never knew *until today* that it was the radio cut. This is the cut on the album, which is considerably longer.)




20200215 dress pr0n kate.jpg




20200215 dress pr0n melania.jpg

___________

Problem Solutions

Beginner Problem - White To Play


20200215 - Problem 1.jpg
r6r/2p1R3/p4k1p/1p1b2p1/P1pP1qPP/B1P5/4QP2/R5K1 w - - 0 1

Mate in 3:

1.Qe5+ Qxe5

Or 1...Kg6 2.Qg7#

2.dxe5+ Kg6
3.h5#

Intermediate Problem - White To Play


20200215 - Problem 2.jpg
7k/1p5p/7P/pq6/8/8/R5P1/4R2K w - - 0 1

1.Rxa5! Kg8

Not 1...Qb6? 2.Ra8+ Qd8 3.Rxd8# or 1...Qxa5?? 2.Re8#

2.Rxb5 Kf7

Black must give up his queen to avoid the immediate mate. White mops up with:

3.Rb6 Kg8
4.Rxb7 Kf8
5.Ra1 Kg8
6.Ra8#


Advanced Problem - White To Play


20200215 - Problem 3.jpg
8/r6p/PR2Pk2/8/8/1B1b4/8/6K1 w - - 0 1

1.e7+ Kxe7
2.Rb7+ Kd6

If 2...Rxb7 then 3.axb7 and the pawn skates to the 8th rank. Black can make White work for the win by not retaking the rook, and by bringing his king into play.

3.Rxa7 Kc6
4.Ra8 Kb6
5.a7 Ba6

If Black tries to immediately force the rook away with 5...Be4, then White can force a decisive simplificaton with 6.Re8 Bb7 7.a8=Q Bxa8 8.Rxa8 winning.

6.Bd5 h5

Or 6...h6 7.Kg2 h5 8.Kg3 h4+ 9.Kxh4 Bd3 10.Kg5 Ba6 11.Kf4 Bf1 12.Ke3 Bb5 13.Rb8+ Kxa7 14.Rxb5 wins

7.Kg2 h4
8.Kh3 Be2
9.Kxh4 Ba6
10.Kg5 Bd3
11.Kf4 Ka6
12.Ke3 Bb1
13.Rc8 Kxa7
14.Ra8+ Kb6
15.Rb8+ and wins with the skewer.

The moral of this story is, don't give up too early. It's true that White had the win, but he had to work hard for it, and in the stress of a tournament situation, time pressure, etc., there's plenty of room for mistakes.

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 05:23 PM

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