The TRC Chess Calculation Method

Home >> Calculation

The TRC Calculation Method gives you a simple 3-step process to organize your thoughts and calculate more clearly when a position feels complicated.

The method is based on CCT — checks, captures, and threats — but before calculating forcing moves, we first identify the opponent’s threats and look for tactical targets and resources.

Each step helps you gather useful information for the next step. You can remember the method with the 3-letter acronym TRC:

1. Find Opponent’s Threats. (T)
2. Observe Tactical Resources. (R)
3. Calculate Forcing Moves. (C)

The example below will show you how to apply the 3-step Calculation Method and if you want more, you can check out the extra TRC Calculation Exercises.

Practical Example of the 3-Step Calculation Method

In the diagram below, Black’s queen has just captured a pawn on b2.

We will now apply the 3-step calculation method and try to find the best response for White.

Step 1: Find Opponent’s Threats

A common mistake chess players make is thinking about the position mainly from their own perspective. However, you should always take the time to grasp your opponent’s imminent threats and likely plans before you think of your own ideas.

In the diagram below, we can observe that black is threatening Qxe2. Why is this a threat?

Diagram above: Black is threatening 1… Qxe2. The point is that if White recaptures the black queen with 2. Rxe2, then 2… Rb1+ 3. Re1 Rxe1# is checkmate.

Note: An important benefit of understanding your opponent’s threats is that it gives you the perfect background for the next stage of your calculations. For example, if you discover a serious threat, you know you must either:

1. find a strong counter-threat, or
2. defend against the threat.

If you do not find any serious threats, you are free to focus on your own opportunities and ideas.

We’ll keep Black’s threat in mind as we move on to the next stage.

Step 2: Observe Tactical Resources (R)

Tactical resources include targets you can attack, threats you can create, and tactical patterns you can use in the position. You should note this information before moving on to the final stage.

These are the tactical resources White should observe:

• The pawn shield in front of the black king is compromised. This means the black king is potentially exposed to checks.
• The black rook on b8 is the only defender of Black’s queen.
• The black pawn on e6 is undefended.

Note: Not all tactical resources in a position are easy to find, but taking the time to uncover them is a crucial part of your calculation process. calculation process.

Step 3: Calculate Forcing Moves (C)

Now that we have gathered important information about the position, it is time to calculate actual variations.

In this step, we use CCT: checks, captures, and threats. This means we focus our attention on the most forcing moves first.

Considering black’s threat, here are the main variations white should calculate:

Diagram above: Since all the variations after 1.Rc8+ work in White’s favor, we can conclude that it is the best move for White.

Since calculation is an infinitely complex aspect of chess, it is helpful to simplify the process by focusing on forcing moves: checks, captures, and threats. This is known as CCT.

Checks

A check is the most forcing move in chess and therefore the easiest type of move to calculate. If you find a check that leads to a forced win, then there is no need to calculate other moves. In many cases, a check can also be a capture.

Captures

When you capture a piece, your opponent’s best response will often be to recapture. It is easier to calculate moves when you already know what your opponent’s likely response will be.

Threats

A threat is an attacking move that forces your opponent either to respond defensively or to make an even stronger counter-threat.

What About Moves That Aren’t Forcing?

Generally, there is no need to spend much time calculating moves that do not force a specific response. Instead, those moves can usually be judged by using your evaluation method.

Conclusion

Calculation is a skill you need on nearly every move you make. Clearly, then, it is very helpful to have a calculation method that you can practice beforehand and use during your games.

Note: It is important to understand that this method is not intended as a strict algorithm that you must follow on every move. Rather, it gives you a practical way to structure your calculations, not only in positions where you sense there may be tactics, but also in other positions where some calculation is required.

The 3-step TRC Calculation Method gave structure to White’s thinking process. Of course, being familiar with tactical patterns — in this case, the ladder trick and overloading a defender — will further support your calculations.

Another benefit of using this method is that it continually gives you useful information that may also help you on the next move.

If you practice this calculation method whenever you solve tactical puzzles, it will eventually become a very useful tool to help you calculate variations in your own games. The acronym TRC — Threats, Resources, Calculate — will help you remember the 3 steps.

A great way to get a head start with the TRC Calculation Method is to get your copy of my exercise collection:

TRC Calculation Method Exercises

• 20 Calculation Method Exercises
• PDF format
• Price $15
• Instant Download after Purchase