Showing posts with label Problems. Show all posts
Showing posts with label Problems. Show all posts

Monday, May 21, 2018

A Study

Via the Chess Unlimited twitter feed, I was directed to a reddit involving a problem posted on LiChess, apparently published in 1928 by a composer named Birnov. Here is the problem.

Birnov (1928)
White to play and draw

I saw a solution pretty quickly. Knowing that it is a composed problem means that everything on the board has a purpose, which directs one's attention to the e-pawn. So e2-e4 is likely to be involved in the solution. From there the rest is easy. But then I thought I saw a second solution. I am sad to report that I did not figure out why only one of the solutions is correct. I will post the answer below the fold.

Sunday, September 3, 2017

A couple of endgames to ponder

First, a puzzle from LiChess, who take their puzzles from users games. Find the best move for White.


The answer later.

Second, another position with White to move.


Black's ...Kd7-e6 targets White's h-pawn. White clearly has to move his king now. Which way should the White king go?

Saturday, July 15, 2017

Chess Puzzle Sites Reviewed ...

...by Johan Salomon, a young Norwegian Grand Master, on his blog. If you're looking for websites to work on puzzles, his review is an excellent place to start.

Monday, June 19, 2017

A simple problem

Via Norway's newest grandmaster, Johan Salomon:
I'll post the answer in the comments, if no one beats me to it.

Tuesday, June 6, 2017

"The last soldier."


Someone responding to this claims it's from Kotov's Play Like a Grandmaster, but that's not one of the three Kotov books I own, so I can't verify it.  Anyway, it's quite clever!

Monday, December 26, 2016

Thursday, October 27, 2016

It's always dangerous.

One can never be too careful. Peter Doggers tweeted the following yesterday.

So Black played a solid set-up, nothing ambitious about it at all. But White's position doesn't look good, and the king's position looks awful. In fact, Black is winning tactically. Can you find the move?

The main sequence can be found here. I have left out the details, but put in the most essential moves.

Wednesday, September 28, 2016

Alibis II

I saw the following on Twitter yesterday.
Forty-five seconds to solve it - seems sufficient, but it took me between two to three full minutes, maybe even a little longer.

But I have an alibi! Just as I started to solve it, my daughter (age six) walked up and wanted to discuss the care and ownership of a cat which not only hasn't been born, it hasn't even been conceived yet. Such are the vagaries of life with a young child!

Thursday, September 1, 2016

Wow.

From Rashit Ziatdinov's Facebook page: White to play and win. The first move is obvious. After that it gets hard! This one requires a little technique, as well. Unfortunately I don't know the origin of the study, but it's a beauty!

Friday, August 26, 2016

Fun with pawns!

Saturday, July 2, 2016

"I'm going to build a wall! It's going to be a great wall!"

UPDATE: Hints & solution in white font below the fold.

I broke discipline yesterday and looked at Facebook for a while, lured there by Emil Sutovsky's statement about the Israeli Olympiad team on Twitter. Looking at Sutovsky's feed, I saw that he presented the following study by Hasek, with the comment:
Cute one from the Czechoslovak composer Hasek. White to play. The idea is clear - but how to make it work? Not obvious, and very aesthetically pleasing solution. Don't publish a solution, just leave a smile if you are sure you got it right.
Hasek, date unknown
White to play & draw

I saw the initial idea quickly, and then saw how it failed. I didn't figure it out on my own, I must confess, and needed a hint. Feel free to use a computer program on it, as Stockfish didn't help at all - the hint came from a commenter to the Facebook post, and then I had to figure out what he meant.

Warning: The title of the post may or may not be misleading.

Hints & solution below the fold in white font.

Monday, June 27, 2016

And now some actual chess!

Tonight a study from Herbstmann, as relayed in Eugene Znosko-Borovsky's classic work, The Middle Game in Chess.

Monday, June 6, 2016

Problem Time: Anwuli-Nakamura Solution

From yesterday:

I was watching some blitz games on Chess.com and happened to catch the following.

Anwuli-Nakamura, 3 minute game
Black to move

Can Black save the game?

Answer:

Sunday, June 5, 2016

Problem Time: Anwuli-Nakamura

I was watching some blitz games on Chess.com and happened to catch the following.

Anwuli-Nakamura, 3 minute game
Black to move

Can Black save the game?

Answer tomorrow.

Tuesday, May 17, 2016

Karsten Müller is at it again.

Karsten Müller presents a new endgame position for our edification.

Lissang, C.2295Al Hadarani, H.2280

White to move. Can you find a line that draws?

Solution at ChessBase: Taking the shorter route.

Thursday, April 14, 2016

Even more fun with Twitter!

Yes, another problem from Twitter. What can I tell you, I'm an addict.

As before, I haven't worked this one out yet. Also as before, this looks hard. What can I tell you, I'm also a masochist.


7k/5p1p/8/7N/P1P5/8/K1R5/6Q1 w - - 0 1

Answer to follow as soon as either I figure it out or admit to abject defeat.

Wednesday, April 13, 2016

More fun with Twitter! [Updated]

I saw this on Twitter and want to remember to look at it later. I haven't looked at it yet, and have no idea what the answer is. At least one player significantly stronger than I am gave up after a while and plugged it into his computer! Have fun!

r1bq1k2/1p3p2/5N1p/p2PQ3/8/5B2/PP3PP1/n5K1 w - - 0 1

UPDATE: I've added the fen for the position. This thing is a beast. White's winning move (I won't reveal it) is not forcing, meaning you have to look at a lot of replies. I'd suggest plugging it into the program of your choice and exploring it that way, OR sitting down with a board, pieces, pad and pencil, and writing down your variations.

Tuesday, April 5, 2016

The Zipper of Doom.

V Korolkov, Revista De Sah, 1957
White to play and win

Answer below the fold.

Monday, April 4, 2016

Tim Krabbé's Chess Curiosities does it again....

There is no better site for chess oddities than Tim Krabbé's Chess Curiosities. His site isn't very active now, but occasionally something new does come up. Recently he put up another post in his chess diary, wondering what chess position would be furthest removed from the initial position. That is, if you start with a position and go backwards to the initial position move by move without repetitions, what would the position look like that has the longest shortest move order? It wouldn't be bare kings, as Sam Loyd showed that bare kings could be achieved from the initial position in 17 moves.

Read more about it at Mr. Krabbé's excellent site, where he might explain things a little more clearly than I have. The diary entry in question is number 397. Here's the position that one of his friends came up with for the furthest position:

Harry Goldsteen, after L. Ceriani & K. Fabel
The Furthest Position, 185 moves
Original, 2008

 After 185...Ba5+

Krabbé provides the moves to get to this position at his website, so this is a legal position! If this kind of thing interests you, give it a look.

Sunday, April 3, 2016

Knight, knight.

Problem time again. I'm going to give the problems in jpeg format, and then have the solutions in the windows below. That way the problems, if not the solutions, will be visible across more formats.

Herbstmann & Kubbel
1st Prize, Troitzky Tourney, 1937
White to play and draw

Next up....
Korani, 1982
White to play and draw 

Solutions below the fold.