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Saturday Evening Movie Thread 01-25-2020 [Hosted By: Moviegique] »
January 25, 2020
Saturday Afternoon Chess Thread 01-25-2020
GM Ju Wenjun (CHN)
Pic Note
Congratulations to Ju Wenjun for retaining her World Women's Championship title. This is actually a three-peat. For the country of China itself, it's a five-peat. The Chinese women basically own this title, having held it a total of 22 years since 1991.
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 (422)
White can capture Black's rook for the win with this one surprising move!
(Reminder: 2 knights alone cannot force checkmate)
Hint: The first move is not a check
8/8/8/8/8/2Nk4/2r1N3/KB6 w - - 0 1
Intermediate Problem - White To Play (427)
Goal: White can win a piece
Hint: Set up a bishop fork
6k1/pppr2pp/8/3bp3/8/8/PPP1BPPP/2KR4 w - - 0 1
Advanced Problem - White To Play (483)
OK, since this is a composition with a specific goal, I think it's OK to tell you what the goal is, which is that White can force a mate in 5. I think it's devlishly tricky, and I'm ashamed to tell you I had to have my chess app find the answer for me, because I completely whiffed on it. Maybe some of you will do better, I hope. Here are a couple of hints, but it's hard for me to tell how helpful they'll be:
Hint 1: Underpromotion is not involved
Hint 2: The pawn stays where it is.
8/8/8/8/8/Q7/4p3/5k1K w - - 0 1
Dress Pr0n For The 'Ettes:
A Downton Abbey Garden Party?
Greetings From Germany
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Problem Solutions
Beginner Problem - White To Play
8/8/8/8/8/2Nk4/2r1N3/KB6 w - - 0 1
So the problem is to figure out how to wrest the rook away from Black and still have enough material to win the game. You just can't take it with the biahop, because you'll be left with only 2 knights, which is insufficient for checkmate.
1.Ne4
Now Black has to move his king, as the rook is pinned.
1...Kxe4
2.Bxc2+ and the B+N checkmate is difficult, but doable.
Intermediate Problem - White To Play
6k1/pppr2pp/8/3bp3/8/8/PPP1BPPP/2KR4 w - - 0 1
1.Bg4 Rd6
There are two other options:
1...Rd8 2. Rxd5 Rxd5 3. Be6+
1...Re7 2. Rxd5
Either one leads to a fork, as does the main line:
2.Rxd5 Rxd5
3.Be6+ Kf8
4.Bxd5 and wins
Black cannot escape the bishop fork.
Advanced Problem - White To Play
8/8/8/8/8/Q7/4p3/5k1K w - - 0 1
Not sure if there's much explaining I can do. This is one of those problems whose solutions you just have to see. And, as I said, I didn't. So this is what my app told me. I found the other line starting with Black's 2nd move since it was my way of testing the app's solution, and it held up.
1.Qf8+! Ke1
2.Qd6 Kf2
Or 2...Kf1 3.Qf4+ Ke1 4.Qd4 Kf1 5.Qg1#
3.Qf4+ Ke1
4.Qd4 Kf1
5.Qg1#
Hope to see you all next week!
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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.
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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.
posted by OregonMuse at
05:20 PM
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