8/21/2017 – The history of the NK Chess Open began 140 years ago — that is — a long time ago. The city of Dieren hosted not only the first edition ever, but every event for the last 49 years. This year's edition was played between July 25th and August 3rd and crowned champion Sandipan Chanda, ahead of Koen Leenhouts. Both scored 7/9 points. | Photos: Alina l´Ami
Fritz has fascinated the chess world for 30 years. And the success story continues. In Vienna, the most popular chess program ever was once again able to underline its premier position: the newly developed neural engine with NNUE technology won the official Chess Software World Championship!
Winning starts with what you know The new version 18 offers completely new possibilities for chess training and analysis: playing style analysis, search for strategic themes, access to 6 billion Lichess games, player preparation by matching Lichess games, download Chess.com games with built-in API, built-in cloud engine and much more.
Mastering piece setups in various pawn structures and transitioning to a dominant middlegame, this course equips you with the insight and flexibility to outmanoeuvre your opponents in the Closed Catalan.
€39.90
Of chess players and animals
The 2017 Netherlands Open in Dieren
Click or tap all photos to open at full-size | Photos: Alina l'Ami
Once upon a time...
…in the lower part of a lowland kingdom, there was a town, and in the town a palace, and in the palace, a king. I daresay you have heard of Max Euwe, the Dutch king of chess, haven't you?
Born a long time ago — and yet perhaps it wasn't such a long time ago — the former world champion galvanized his nation. The Max Euweplein, a square in Amsterdam, honors his name, while thousands of chess enthusiasts still day-dream of similar paths to fame.
But it all started in the olden times when wishing still helped. And believe it or not, it is absolutely true: the NK Open, which takes place in Dieren (which literally means "animals" in Dutch), at the end of July/beginning of August, and dates back more than 140 year. It has been 49 years since it was held in the current location.
(Above) Just the tip of the iceberg (Below) The playing hall, hidden underneath the Cafe
It must be a cultural thing. I do dislike stereotyping, but a fact is a fact: the Dutch chess players, even though some might be under-rated, are very dangerous opponents, especially if you are facing young ones. They are ambitious, energetic, calculate very well and most annoyingly of all: they know their openings. You don't want to mess with them by entering war zones like the 6.Bg5 Najdorf. And even if the battle is not a theoretical one, very often one can witness the struggles the higher rated players must endure.
New ...
New Game
Edit Game
Setup Position
Open...
PGN
FEN
Share...
Share Board (.png)
Share Board (configure)
Share playable board
Share game as GIF
Notation (PGN)
QR Code
Layout...
Use splitters
Swipe notation/lists
Reading mode
Flip Board
Settings
Move
N
Result
Elo
Players
Replay and check the LiveBook here
Please, wait...
After a double-edged opening and middlegame discussion, the players landed in
the following position, which is far from lacking venom.22...Bf823.Qh5
sacrificing a piece for initiativeIf23.Bxf8Nxf8 and the
knight on g5 won't be satisfied with moves like h6 coming in sight.23...Bxh624.Nxh7Kf725.Bxf5Now the second piece goes! It is quite exciting to
follow the Dutch chess scenes.exf526.e6+Kg727.e7Now food for thought:
can Black defend? How?Kxh7was played but that loses on the spot.
What else though?27...Rge6would not save much.28.e8N+Just because
it looks prettier, obviously queening is not wrong either.Rxe829.Qxe8Kxh730.Re7+Bg731.Qh5+Rh632.Qxf5+Kh833.Qf7Bf834.Qxf8+Nxf835.Rxc7Be636.Rxc5+-And White has too many pawns for Black to worry about.
Instead,27...Rbe6!would have kept the game going. That only if you saw
a crucial move further on...28.e8QRxe829.Rxe8Ne5!The point is
that after29...Kxh7runs into the same
devastating attack30.Re7+Rg731.Qxf5+Kh832.Rae1+-30.fxe530.Rxe5?Bxf4-+30...Be3+31.Kh1Rh6would
follow, with a winning position for Black. White is, of course, not forced to
take the Trojan horse but at the end of the day, it will remain difficult to
keep an eye on all the weaknesses. That and my engine also prefers Black.28.e8QRbf629.Qxh6+the cherry on the cake.1–0
Everyone knows that tradition is not to preserve the ashes but to pass on the flame
Every year in Dieren, a Brobdingnagian chess fire warms up the hearts of hundreds of people — 508 this time, to be exact.
“I played there as a kid”, says the Dutch GM Erwin l'Ami. “It feels great to be back and enjoy the game in the same gemoedelijk atmosphere”.
Chess in a convivial habitat does wonders but just when about to grab the 1st place, Erwin (below) fell off the ladder by losing the last game against Dimitri Reinderman
The top seed, Eduardo Iturrizaga (above), had to face a similar fate as he lost in Round 8 against IM Koen Leenhouts (below), who shared 1st with 7/9 along side Sandipan Chanda
GM Chanda Sandipan was crowned Dutch Open Champion for the second consecutive time | Sagar Shah, ChessBase India
The Modern Pirc is actually a mixture of the Caro-Kann and the Pirc. In many lines Black combines the ideas of the classical Pirc in which the fianchettoed bishop is important with the Caro-Kann idea to fight for the center with c6-d5.
New ...
New Game
Edit Game
Setup Position
Open...
PGN
FEN
Share...
Share Board (.png)
Share Board (configure)
Share playable board
Share game as GIF
Notation (PGN)
QR Code
Layout...
Use splitters
Swipe notation/lists
Reading mode
Flip Board
Settings
Move
N
Result
Elo
Players
Replay and check the LiveBook here
Please, wait...
Sandipan Chanda won Dieren twice in a row (!) but not without his share of
shaky moments. This 8th game was a turning point for his tournament course.17...Be6was played, missing:17...h618.Bf4a5∞18.Bg5f619.Nxf6+!Bxf620.Rxe5Bxg521.Nxe6Hassle-free would have been21.Qe2Bh422.Rxe6Qf723.g3±and White is a pawn up.21...Rxf2counterblow22.Qb3White is still better, technically, but must be very precise.Perhaps
better is22.Qd4Bf623.Kxf2Qf724.Nf4g525.Rae1Rf826.Kg1Bxe527.Rxe5Qxf428.Qxf4gxf429.Kf2with a better rook endgame.22...Kh823.Rae1Roeland had such interesting games, the entire tournament, which does
come with a price: mistakes appear.White is still better after23.Rxg5Re224.Nd4Qxg525.Nxe2Qe3+26.Kh1Qxe227.Qf723...Bh424.Qc4Qf625.Qd4beginning of the endNothing wrong with25.Ng5Bxg526.Rxg5=25...Rxa226.Rf1Bf2+27.Rxf2Rxf228.Ng5Rf1+29.Kh2Qf4+30.Qxf4Rxf4
Black won a crucial game for the final standings.0–1
For as long as one can remember, countless players have been playing chess in the very same tournament hall. Many felt the wonder of a child returning now, back and back again, as adults.
The trusted environment is propitious for the emotional memories to unfold, and for planning properly — one can block the dates way in advance for the next edition
But the tournament is not just a dinosaur which miraculously avoided extinction. It also gives impetus to the young talents and hardens them for when the time will come to be crowned as chess kings and queens.
Sometimes the chess world feels like a world in which one would move like a chess horse that would move like a rook that would move like a bishop. It can be quite puzzling and chaotic. But it is beautiful too.
The one and only Manuel Bosboom, IM and a legend in the Dutch chess scene, was the winner of the Blitz event in Dieren
For the chess fanatics, there are Rapid and Blitz events to attend, plus a wide range of additional activities, tailored to satisfy the special people that we are. There is also a popquiz, simul, football match etc. And if that's not onto your liking, just enjoying the sun and the typical Dutch scenery can't be wrong either.
Besides, the entire setting is so Dutch — you know:
Green grass, cows, flat land, strong winds, heavy rains
In this environment, playing chess feels most natural | Photo: Patrick Put
Because my tale started with Euwe, will round it up with his granddaughter, Esmee Lammers. She has written a children book called “Lang Leve de Koningin” (Long Live the Queen), which is popular with young people.
The princess and her queen
It is a tale about a young girl who learns to play chess, and I can only wonder why there are such few women chess players in the Netherlands? A Sherlock Holmes mystery which still needs solving...
Meanwhile, you can puzzle out the following examples:
New ...
New Game
Edit Game
Setup Position
Open...
PGN
FEN
Share...
Share Board (.png)
Share Board (configure)
Share playable board
Share game as GIF
Notation (PGN)
QR Code
Layout...
Use splitters
Swipe notation/lists
Reading mode
Flip Board
Settings
Move
N
Result
Elo
Players
Replay and check the LiveBook here
Please, wait...
The hunter becomes the hunted.16.Nf4was played, after which White had
deep regrets.Better and more restrained would have been16.d4where the
odds should favour White.e4 would be a
positional and expensive gift from Black.16...exf417.Bxd5Bxd518.Rxe8Raxe8A sacrifice for a higher cause since White's queenside pieces are
lacking development.19.Qb5What else?19.Nf1doesn't bring brighter
perspectivesRe120.b3Bf320...Bxc3?21.Bb2∞21.Qxc721.Bb2?Rxa122.Bxa1Nd4-+21...Ne522.Bb2Ba8-+19...Re1+20.Nf1Bf321.b4Ne522.Qxa5Bb723.Qxc7Nf3+24.Kg2Ba825.gxf4Bf626.h4Rg8+27.Ng3Rg1+28.Kh3Rh1+29.Nxh1Ng1+30.Kh2Rg2#I liked this final mating part,
candy for the eye.0–1
Some people don't believe what they are told. They only believe what they see. Next year, will mark 50 years of chess history in Dieren. And the story can be yours in 2018.
Correction: An earlier version of this article referred to the tournament as the "Dutch Championship", which is actually a separate event that was held in July and won by Loek van Wely, after a two-game tiebreak over Sipke Ernst.
Alina l'AmiAlina is an International Master and a very enthusiastic person in everything she does. She loves travelling to the world's most remote places in order to play chess tournaments and report about them here on ChessBase! As chance would have it Alina is also an excellent photographer.
This interactive video course of over 8 hours, provides an in-depth exploration of the Pirc Defence, a favoured opening for people looking to play for the win with the black pieces.
Pirc Defence Powerbase 2025 is a database and contains a total of 10027 games from Mega 2025 or the Correspondence Database 2024; of these 874 are annotated.
The Pirc Defence Powerbook 2025 consists for a greater part of engine games (168 000), to which has been added high value material from Mega and the Correspondence Database (115 000).
The free app from ChessBase! ChessBase Mobile has everything you need as a chess player on the go:
access your chess data in cloud databases - and 13 million games.
Whether it’s a weak pawn, a vulnerable king, or poor piece coordination, this course will teach you how to pinpoint the critical targets, prioritise your attack, and execute a clear, effective plan.
The Cozio Variation (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7!?) is an underrated weapon that takes White out of well-known theory.
€9.90
We use cookies and comparable technologies to provide certain functions, to improve the user experience and to offer interest-oriented content. Depending on their intended use, analysis cookies and marketing cookies may be used in addition to technically required cookies. Here you can make detailed settings or revoke your consent (if necessary partially) with effect for the future. Further information can be found in our data protection declaration.
Pop-up for detailed settings
We use cookies and comparable technologies to provide certain functions, to improve the user experience and to offer interest-oriented content. Depending on their intended use, cookies may be used in addition to technically required cookies, analysis cookies and marketing cookies. You can decide which cookies to use by selecting the appropriate options below. Please note that your selection may affect the functionality of the service. Further information can be found in our privacy policy.
Technically required cookies
Technically required cookies: so that you can navigate and use the basic functions and store preferences.
Analysis Cookies
To help us determine how visitors interact with our website to improve the user experience.
Marketing-Cookies
To help us offer and evaluate relevant content and interesting and appropriate advertisement.