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April 04, 2020

Saturday Afternoon Chess thread 04-04-2020

WGM Andjelija Stojanovic SRB 01 lite.jpg
WGM Andjelija Stojanovic (SRB)

TheJamesMadison 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 - Black To Play (606)

Goal: Black can force a mate in 3 moves
Hint: Weaken White's king-side pawns for forcing an advance


20200404 - Problem 1.jpg
rn2k2r/p4p2/b2p1np1/2pPb2p/Nq6/NB3P2/PP1B2PP/R2QK2R b KQkq - 0 1




WIM Arianne Caoili 02.jpg
WIM Arianne Caoili (1986-2020)





Intermediate Problem - White To Play (592)

It looks grim for White. It's the endgame and he's down a rook. How can he avoid losing? And that question is a hint at the strategic goal you need to pursue.

Hint: Simplify the position to create a stalemate threat


20200404 - Problem 2.jpg
8/2q5/2r3k1/7r/8/8/5Q2/K1R5 w - - 0 1



Arnold Says Stay Home and Play Chess:



Advanced Problem - White To Play (580)

If there's anything I like better than a tricky endgame, it's a tricky endgame I actually understand. How does White win from this position, even with Black making the best possible moves? I've experimented with this problem enough where I *think* I understand what's going on and hopefully will be able to explain why wrong answers are wrong answers. Or, maybe I've missed a critical line. We'll see.


20200404 - Problem 3.jpg
8/8/b7/7p/P2P4/3k3B/8/K7 w - - 0 1



Dress Pr0n For The 'Ettes:




20200404 dress pr0n 01.jpg




20200404 dress pr0n 02.jpg




20200404 dress pr0n 03.jpg




20200404 dress pr0n 04.jpg




20200404 dress pr0n argentina.jpg
Greetings From Argentina




20200404 dress pr0n kate.jpg




20200404 dress pr0n melania.jpg

___________

Problem Solutions

Beginner Problem - Black To Play


20200404 - Problem 1.jpg
rn2k2r/p4p2/b2p1np1/2pPb2p/Nq6/NB3P2/PP1B2PP/R2QK2R b KQkq - 0 1

Mate in 3:

1...Qh4+
2.g3 Bxg3+
3.hxg3 Qxg3#

2...Qxg3+ 3.hxg3 Bxg3# also works.


Intermediate Problem - White To Play


20200404 - Problem 2.jpg
8/2q5/2r3k1/7r/8/8/5Q2/K1R5 w - - 0 1

1.Rxc6+ Qxc6
2.Qc2+ Qxc2 stalemate(!)

Which is all but forced. If 2...Kf6? then 3.Qxc6+ for at least a draw and possibly a win.


Advanced Problem - White To Play


20200404 - Problem 3.jpg
8/8/b7/7p/P2P4/3k3B/8/K7 w - - 0 1

Answer:

1.d5!

1.Bf1+? is tempting, but it fails: 1...Kxd4 2.Bxa6 Kc5 3.Kb1 h4 4.Kc2 Kb4 5.Bc8 Kxa4 draw

1...Bb7
2.d6 Bc6
3.Bd7! Bxd7
4.a5 h4

If 4...Bc6 then 5.a6 h4 6.a7 h3 7. a8=Q Bxa8 8.d7 Kc4 9.d8=Q Bc6 10.Qh4+ and the pawn won't queen.

5. a6 h3
6. a7 Bc6
7. a8=Q! (7.d7? h2 8.d8=Q+ Kc2 9.Qc8 (9.Qb8 h1=Q+ 10. Ka2 Qd5+ 11. Ka1 Qd4+ 12. Ka2 Qa4#) 9...h1=Q+ 10. Ka2 Qb1+ 11. Ka3 Qb3#)

7...Bxa8
8.d7 Ke3
9.d8=Q Bg2
10.Qf6 Ke4
11.Kb2 Kd5
12.Qf4 Kc5
13.Kc3 Kd5
14.Qf5+ Kd6
15.Kd4 1-0

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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