This topic is going to address a topic that is very difficult to describe to somebody using words. There are two questions that we will be answering in this topic:
1. When should I stop and really think?
2. When I do stop, what should my thought process be?
And these are not very easy questions to answer since a lot of it depends on your prior knowledge. If you have played an opening many times and are very familiar with it, you might not need to stop and think much early in the game, for example. However, somebody who is unfamiliar with the opening may have to stop and think a lot in order to find the best moves. You might enter a middlegame with a plan in mind, but then your opponent does something to throw you off. Maybe you have to adapt your plan.
The simple answer to the first question is this:
1. You have several moves that look like they might be good, so you need to stop and consider your best option. This deals with the topic of Candidate Moves. When playing chess, you will often need to develop a mental list of Candidate Moves, moves that you think might be good to play in a position. Then, you must consider each option to see which one is best.
2. Your opponent plays a move that......
a) is not normal for the position on the board
b) looks like it could be dangerous at a first glance
c) combination of a and b
The only reason I didn't put a and b together is that sometimes your opponent really has no clue what they are doing, and maybe they play a move that you are sure is not good. Just because they play a move that is not the best, this does not mean that you should rush through it. Remember that there is a reason that the move they played is not the best. See if you can figure out why!
A lot of times, however, your opponent will play a move that is not the mainline of whatever opening you are playing, and the move is a sideline that could involve a trap. If you are not careful, you could fall right into it! Here is a quick example of an opening trap involving a strange move from white:
White's threat in that position would have actually been very easy to stop with a move like e6, and then White would have been left with the Queen just looking silly sitting on e2 blocking in White's Bishop.
Here is a great example of a game I just played where I had to stop and think on move 4! I've been playing chess seriously for over 10 years, and my opponent played something that confused me super early in the game! My opponent played a move that made me unsure of the best way to continue. I'm still not entirely sure that I chose the best option in the position, but I will go through the various lines and explain my thought process. Hopefully this will help to answer both questions asked at the beginning: when and how to think.
As I already said, I was expecting him to play cxd4, trading his flank pawn for my center pawn. This move threw me off a bit. Here is my thought process after he played this move:
1) That is not the move I was expecting
2) At a first glance, this move does look dangerous. He is threatening to take my pawn on b2, and since my Knight is still sitting on b1, I have no way to counterattack quickly. He will be able to escape and be up a pawn and I have no compensation. In addition, Qb6 supports his pawn on c5 and his attack on the d4 square, which is a secondary threat.
3) I cannot just play a move here and hope for the best. Since this move surprised me and it looks a bit scary, I need to consider my options. I need to come up with a list of Candidate Moves and decide the best way to continue.
Before looking at the lines below, as an exercise, I want you to develop a list of Candidate Moves on your own. You should come up with 5 moves. Technically 6, but the 6th option is one I did not even consider and is more of a "computer line."
Additionally, I really want you to think about this: how do you defend a piece? There are 2 ways:
1. Defend the piece directly by moving it out of harms way or moving another piece to protect it.
2. Defend the piece indirectly with tactics. This would mean that taking the "free" piece would result in issues for your opponent, often losing large amounts of material.
Here is a quick analysis of each option:
a) Pawn to b3
b) Queen to c1
c) dxc5
d) Nd2
e) Nc3: This is the one I went with in the game
I correctly assumed that my opponent would see the potential dangers with capturing the b2 pawn, and assumed that he would not want a draw so early. As we will see, he ends up not taking the pawn.
f) Ne2: A computer line
To further illustrate what I mean by the 2nd way of defending, I will show the rest of the game. Pay attention to how I protect my pawns indirectly with tactics early in the game until I need to defend the directly.
Hopefully, this game showed you the various ways to evaluate positions. Sometimes the best way to defend is to find a tactical way to protect your pieces and pawns. And of course, always stop and think when your opponent plays something that throws you off!
I will show one more quick example, also using the London System. First, here is the setup that White normally goes for when playing the London System:
Take note that White's Queenside Knight normally goes to the d2 square.
As you can see, it is often easy to stop such threats that can come from the opening. It is also often easy to stop threats at other stages in the game as well. It is very important that when your opponent plays a move that you aren't expecting or seems strange or dangerous that you stop for a few minutes and really try to figure out your opponent's threats and find the most accurate continuation. A big part of winning games is taking your time!
Please feel free to leave any questions or comments below!
Thanks for reading!
Jon