« Ace of Spades Pet Thread |
Main
|
Saturday Evening Movie Thread 12-22-2018 [Hosted By: Moviegique] »
December 22, 2018
Chess Thread 12-22-2018
Actress Nancy Berg
Pic Note
The chess set she's using was a very popular type among chessplayers back in the 1960s. It had a specific name that it was known by, but I don't remember what it is. I believe photos exist of Fischer playing with that piece set. Good luck trying to find them used on eBay, though.
As always, the chess/dress pr0n thread is an open thread, so there is no such thing as an off-topic comment.
Easier Problem - White To Play (239)
Goal: White can force a mate in 3
Hint: Draw the Black's king away from the escape square g7
5k2/5p1p/1qp5/p2n4/r4pQB/2b4P/1P3PP1/4R1K1 w - - 0 1
Because Grandmasters Need Steady Nerves
This is fun. Take a look at this ad:
(click to make me big)
I never knew chessplayers could draw the attention of major advertisers back then. Denker's GM title is honorary and if this ad is from before 1950, he wasn't yet an IM. But what I'm interested in is one of the middle panels where the focus is on what appears to be an actual game position and claims that Denker forced checkmate. I couldn't see how. Here is the position as near as I can make it out:
3r2nk/7p/5ppP/6p1/3B4/p6N/B6K/8 w - - 0 1
The panel text says Denker's move was 'Kt x P' (Nxg5) threatening mate at 'B7' (f7). I looked at this for a few minutes and saw 1...Rf8 and thought this pretty much puts the kibosh on White's attack. But, as it turns out, I was wrong. White can, indeed, force a mate from this position, starting with 1.Nxg5. So, let finding the mate be this week's challenging problem.
Goal: Find the forced mate in 7
Hint: Zugzwang is your friend (but not Black's!)
Dress Pr0n For The 'Ettes:
Greetings From France
Merry Christmas 2018
___________
Solutions Update
Easier Problem - White To Play
5k2/5p1p/1qp5/p2n4/r4pQB/2b4P/1P3PP1/4R1K1 w - - 0 1
1.Re8+!
Not 1.Qc8+ Kg7 2.Re8 Nf6! and White's quick win slips away.
1...Kxe8
2.Qc8+ Qd8
3.Qxd8#
Denker's Problem
3r2nk/7p/5ppP/6p1/3B4/p6N/B6K/8 w - - 0 1
1. Nxg5 Rf8
Black's knight absolutely needs to stay where it is to protect the pawn on f6: 1...Ne7 2.Bxf6#)
And of course, the bishop cannot be taken: 1...Rxd4 2. Nf7#.
2.Nf7+ Rxf7
3.Bxf7 a2
4.Bxa2 g5
5.Bc3 g4
6.Kg3 Nxh6
7.Bxf6#
Black's knight absolutely needs to stay where it is to protect the pawn on f6: 1...Ne7 2.Bxf6#
And of course, the bishop cannot be taken: 1...Rxd4 2. Nf7#.
Off the reservation's analysis is pretty good, so I'm just going to copy and paste it:
39 More Challenging Problem
1. Nxg5 Rf8 (or Rd7)
2. Nf7+ Rxf7
3. Bxf7 ...
Now if the black N moves, then Bxf6# and the white B on the a2-g8 diagonal can stay anywhere on the diagonal so only the black pawns on a3 and g6 can move.
When the a3 pawn moves the B on a2-g8 takes it.
When the g6 pawn will be blocked by the white king
and there is Zugzwang and:
... Nxh6 (or Ne7)
Bxf6#
Posted by: Off the reservation at December 22, 2018 06:04 PM (vWMNq)
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.
posted by OregonMuse at
05:27 PM
|
Access Comments