The Colle-Zukertort System

Many beginners and intermediate players struggle with consistently following opening principles and navigating middlegame positions. I had the exact same problem until this opening provided me with a comfortable position and easy middlegame plans!

Setup:

This opening fights for the centre with 1.d4, and after 1...d5, we play 2.Nf3, developing our knight to the most natural square, adding more control to important e5 square - our main focus here, and what will motivate our play. The typical Colle system continues 2...Nf6 3.e3. Doesn't this break opening principles by blocking in our dark-squared bishop? Yes, so this is why we play the Colle-Zukertort system, and fianchetto it by playing b3 and Bb2! Our other knight goes to the d2 square, controlling the e4 square, but not stopping the c-pawn from pushing if necessary, with our light-squared bishop going to d3 also controlling the e4 square and aiming at Black's kingside. We castle kingside and aim for a same-side castling attack! Eventually, you will end up with the below position, showcasing Black's typical response.

Plans (into the early middlegame):

• Control the e5 square at all costs, as Black's main idea here is to push e5 to disrupt our centre and central control. This will often see us playing Ne5 to block the advance, and f4 to bolster it, adding even more control!
• Control the e4 square to prevent Black's advances, often ...Ne4.
• In the above position, if/when Black plays c5, we must instantly respond with b3 to prevent Black playing c4 which stops our light-squared bishop from developing to d3.
• To further prevent our bishop developing to this square, Black wants to play Nb4 - we play a3 prophylactically to prevent this.

Notice that if Black ever plays cxd4, we play exd4, maintaining our control of e5. Black will then attempt to generate counterplay down the semi-open c-file with Rc8,  while we play on the kingside - we can always simply defend our c-pawn with Rac1 or advance it to c3 or c4 if necessary. To complete our development and start this kingside attack, we often play moves such as the rook lift Rf3-Rg3/Rh3, Qf3-Qg3/Qh3, and maybe even g4 to start a pawn storm!

With both our sniper bishops now aiming at the kingside, our knight centrally posted on e5, and our pieces positioned nicely on the kingside, every move we scan for sacrificial tactics around Black's king. More often than not, this is our favourite Greek Gift! In fact, in my first ever OTB game, I got this exact tactic - a quick walk around was needed to prepare myself for sacrificing like this in my first tournament game...

This was only the beginning! Yes, the knight can take, but Qh5 threatens checkmate, so the opponent has to give it back. Now up a pawn, and having weakened Black's kingside, I execute the plans laid out before. Look how the pressure on the kingside is far too much, and mate is coming! In this same tournament, I also won a game using these ideas, combining them with a kingside pawn storm. The engine gives the following position around equality, but practically, I prefer this for White as it is much easier to attack than defend.

The equality here comes from the fact that I didn't manage to stop Black's control of e4 - look how strong their knights would be on that outpost! However, the pressure got too much for my opponent, and I won just moves later.

It wouldn't be a legitimate post about this opening without giving credit to Susan Polgar for her amazing work on this opening. In the previous position, when I didn't know what to play, I asked myself 'WWSPD': What would Susan Polgar do? In reality, Susan would probably have played c4, but by thinking about model games I have seen, I was able to come up with a plan. I urge you to watch the below videos to gain a deeper understanding of this opening and all its intricacies!

Susan Polgar's 2-hour deep dive into this opening:

https://www.youtube.com/watch?v=U1KFKjvid8I

Robert Ramirez - how to deal with those pesky Anti-Colle systems: 

https://youtu.be/Pqea2478iRM

Simon Williams - free GM lesson on the opening:

https://www.youtube.com/watch?v=Frl5-esN4ZM

I hope that this introduction to this amazing easy-to-play opening and the beautiful tactics it allows for inspires you to play it and no longer feel lost in the opening and middlegame. I will end this post with a thematic beautiful double bishop sacrifice:

If it works for you and you enjoy it, so be it. But honestly, the only time I'd play the Colle is if I'm transposing into it after the main lines like the anti-colle or early c5 are no longer playable. Transpositions like this are possible from the Saragossa, the Zukertort, 1. d4 > 2. Nd2 (a very legit line), the Nimzo Larsen, and a few other odd lines. But going into a straight Colle... it's not something I'd recommend since black has some strong responses to it which just aren't very pleasant to deal with, but to each their own.
I do play the Colle in one small transposition in my current repertoire - only when black has played e6 + Nf3 + d5. In this case you can queenside fiancetto and maintain good control over e5 / rotate your knight to occupy that square, and it can be good.
There are also a variety of Colle-like positions with a similar fiancetto, which while they're not technically the Colle... in spirit they're along the same lines. An example would be the quiet slav where white plays e3 / fiancettos Bb2 early on. Those lines can be good too, for similar reasons - control over e5 and knights occupying that square. In this case c6 is a wasted tempo so it's even better.

It's a very good opening, but I stopped playing it because I got really bored. I play Blitz for fun. Now, if I ever go back to classical chess, I would probably play the Colle more than once, just like I used to play the London system. In fact, I like the Colle more because with the London, Black has variations with Qb6 that really annoy me. On the other hand, with the Colle, you have the bishop on c1 protecting the b2 square. It's a more relaxed and humble system.

Hi, I agree it isn't perfect - no opening is! I am recommending this mainly to beginner/intermediate players who feel like they struggle with the opening and middlegame. It teaches you about how important square control is, and themes such as rook lifts, same-side castling attacks, pawn storms, (greek gift) sacrifices etc. I have attached a link to a video surrounding how to combat Anti-Colle systems which I have had great success with. Thank you for your suggestions on the Saragossa and Zukertort, I will give them a look!

I play the Colle... I focus on the Koltanowski var over the Zuckertort. I believe the Koltanowski offers more options in transpositioning into various "Reversed Queen's Gambit w/move varations. E.g. Reversed QGA or a Reversed Campridge Springs. (Take what I just wrote and reference it when Black play 1...d5 and 2...c5)

Also playing the Koltanowski as a true Semi-Slav with a move against Nc6 main lines has removed a major weapon Black had.

If you play the Colle (either var ) all of Rudel's works are a must. There is a lot of garbage on the Colle in print... many authors have just regurgitated bad lines leading the Colle player astray. This goes double for Anti-Colle lines. Rudel's works although a decade old still will point you in the right direction as far as Anti-Colle lines. HE Really called out a lot of authors saying to play crap lines. Pavolvic's "The Modernized Colle Zuckertort Attack" is a must regardless of what Colle var you play.

When you get done booking up on the Colle Main lines, all the favorable transpositions, the various Anti-Colle lines, then booking up on decent lines against the Indian defenses afforded after 1.d4 2. e3 & Nf3 .... its not that much smaller "Theoretically" than Main lines. (*** So you better love the Colle because it's not going to save you much in study time if you want to play it seriously )

Thank you so much for reminding me about Rudel! Need to give his stuff another look for sure

As a beginner myself the only opening I can reliably get to work is the 4 knights game. Thanks for the post though maybe one day I'll get better and be able to utilize this opening.

Try it! Why not? Feel free to message me with any questions

Thanks I appreciate it. I actually have been trying to use this opening for several days now against the Antonio bot without success (I can easily win a 4 knights game). I'm going to go through that Susan Polgar DVD to see if it helps. I keep seeing people say it's an easy opening to use but it feels very overwhelming since the bot plays so many different openings against this.

Often times it's a battle for the e5 square, and when I do have control of it I struggle to find ideas from there. As a beginner I'm much more used to simply attacking down the center and I may be wrong but the Zukertort seems to be more geared towards attacking the king side.

To get a good grasp on the Colle ( Both the Zuckertort and the Koltanowski... ) you need to study the middle games of Stonewall Attack.

There are two main themes in the Colle ...

A) a central pawn thrust...usually pawn to e4. combined with a Kingside attack.

B) the institution of a Stonewall Attack usually combined with a king side attack.

In both ... the kingside attack could be multi faceted...tactics with piece attacks (combination or a king side pawn storms ... or a combination of both with sacs (think Greek Gift) later on you will learn to feint these threats to attack something totally unrelated on the Queenside etc) by that time you will be know the minutia of the opening allowing you to take advantage of minor inaccuracies. The Colle is one of the opening that even if Black has equalized, thier is still enough play in the opening for a decent game to be had by White.

Thanks a lot for the input! I'm not familiar with the stonewall attack so this could explain some of my difficulties.

i might try this opening