6K1/5PR1/3R4/4k3/8/8/q7/8 w - - 0 1

Dress Pr0n For The 'Ettes:

Playful monochrome in a #1950s novelty print dress, Mexican origins suggested by motifs of Mariachi musicians spinning around the skirt. Although printed cotton, it is given some extra sparkle with the addition of sequins outlining leaf motifs on the bodice @RISDMuseum #sparkle pic.twitter.com/4Gsm4TTDLK

— Dr Kate Strasdin (@kateStrasdin) July 27, 2018

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Solutions Update

Easier Problem - White To Play

8/4P2P/6k1/8/5K2/8/8/8 w - - 0 1

1.h8=Q Kf7

That was the only legal move for Black.

2.e8Q#

Kaboom!

More Challenging Problem - White To Play

6K1/5PR1/3R4/4k3/8/8/q7/8 w - - 0 1

So White's strategic goals are:
1. Get that pawn queened
2. Force Black into a position where he has to trade his queen for White's queen.

For Black:
1. Avoid trading queens
2. Try to force a draw by perpetual checking.

One set of solutions starts out with the move

1.Rd5+

If Black responds with 1...Qxd5 then it's an easy win: 2.Rg5+ Ke6 3.Rxd5 Kxd5 4.f8Q

However, if black chooses 1...Kxd5 with the idea to get a draw through endless perpetual checks, then

2.f8=Q Kd4+
3.Rf7 Qd5 (not 3... Qg2+ 4.Qg7+ puts an end to the checks)
4 Qg7+ Kc5
5.Qc3+ Kb6
6.Qb4+ Ka6
7.Qa4+ Kb6
8.Qa7+ Kc6
9.Qb7+

And this check is what White has been trying to get to force the exchange.

9...Kc5
10.Qxd5+ Kxd5 and wins

If Black instead moves 2...Ke4+ then White's maneuvering is similar:

3.Qf7 Qa8+
4.Qf8 Qd5+
5.Qf7 Qd8+
6.Qf8 Qd5+
7.Kh8 Qh5+
8.Rh7 Qe5+
9.Qg7 Qe8+
10.Qg8 Qe5+
11.Rg7 Qh5+
12.Qh7+

Another solution begins with 1.Ra6:

1. Ra6 Qxa6
2. f8=Q Qe6+
3. Qf7 Qc8+
4. Qf8 Qe6+
5. Rf7 Kd4 (5... Qg6+ 6. Qg7+)
6. Qg7+ Kc5
7. Qc3+ Kb5
8. Qd3+ Kc5
9. Qf5+ Qd5
10. Qxd5+ and wins

A solution is:

1.Rgg6 Qb3

Black's queen needs to stay on that diagonal.

2.Rde6+ Qxe6

Otherwise, the pawn queens.

3.Rxe6+ Kxe6
4.f8=Q 1-0

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 05:10 PM

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