Published on October 18th, 2009

A couple of months ago and two years after the previous version ChessX has released a new version. This is version 0.6, which can be downloaded for Windows and Mac on the download section of the ChessX site.
I decided to try this version and I started by saving the games of the IJ105 database as a PGN file, which is currently the format that is needed for ChessX, but a Native Database Format is planned for the next release. I also made a PGN file that contained the first 1000 games of this Database.

ChessDB and PGN file

As you can see the PGN file uses a lot of memory when compared to the SCID or ChessDB database files.

I was unable to use the large database. It started to load the games, but after waiting for more than an hour it was still busy loading.
Loading the file with the first 1000 games went raher smooth and I like the way it looks and how you can position everyting as you wish.

ChessX

If you only need something like this for your own games (with a rather small database) than this may be a very interesting multi platform alternative, but for large databases it will probably not be usable. However, the next release promises to add a Native Database Format, which may solve these problems.

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Published on October 4th, 2009

In this lesson I will show you the Mortimer trap, also known as the Mortimer Variation of the Berlin Defense.








White to move

Mortimer_Trap

1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3

( Today 4.O-O is played far more frequently )

4… Ne7?!

This is the Mortimer Variation of the Berlin Defense. It’s not a good move, but it sets a trap and the capture of the black pawn on e5 may be very tempting for White.

( 4… d6 5.c3 is a more normal continuation )

( Even after 5.O-O Ng6 6.d4 c6 7.dxe5 Nxe4 Black is not without chances. )

5… c6! 6.Nc4

( 6.Ba4 Qa5+ 7.Nc3 Qxe5 )

( 6.Nxc6 dxc6 7.Bc4 Ng6 )

( 6.Nxf7 Probably White’s best move 6...Kxf7 7.Ba4 )

( 6.Bc4 Qa5+ 7.Nc3 Qxe5 )

6… d6! 7.Ba4 b5 This move forks the white bishop and knight and wins a piece


 

Published on August 12th, 2009

I have upgraded to WordPress 2.8.4, because yesterday a vulnerability was discovered by the WordPress team: a specially crafted URL could be requested that would allow an attacker to bypass a security check to verify a user requested a password reset. As a result, the first account without a key in the database (usually the admin account) would have its password reset and a new password would be emailed to the account owner. This doesn’t allow remote access, but it is very annoying.

Version 2.8.4 seems to fix all known problems and is highly recommended for all users of WordPress.

Chess playng
Chess playing by Malkolm – Bust it Away Photography

Published on July 22nd, 2009

Let’s have a look at the diagram below. White is two pawns ahead, but it is Black’s turn to move. Is he able to get a draw?








Black to move
Position after move 32
0 half-moves after last pawn advance or capture

White’s bishop is a bad bishop. It has the wrong color and will not be able to drive away Black’s king from the promotion square of the rook pawn. Knowing this Black only has to capture the b-pawn to get the draw.

Read the rest of this entry »

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Published on July 21st, 2009

As a kind of follow-up on the previous post I’ll have to show you this picture from Cindy Seigle. This is one of the many beautiful chess sets set up in the atrium at the West Baden Springs Hotel in Orange County, Indiana.

Chess_set
Chess set at the West Baden Springs Hotel by cindy47452

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