A trick to calculate 5–7 moves ahead easily

 A powerful trick used by top players like Magnus Carlsen to calculate 5–7 moves ahead is called the “Forcing Moves Chain” method. It dramatically reduces the number of positions you need to calculate.

♟️ Trick: The “Forcing Moves Chain”

Instead of calculating every possible move, only calculate forcing moves.

Forcing moves are:

  1. Checks

  2. Captures

  3. Strong threats

These moves force the opponent to respond in limited ways, making deep calculation easier.

Step-by-Step Method

1️⃣ Look for Checks First

Ask yourself:

“Can I give a check?”

Checks usually have very few replies, so they are easy to calculate deeply.

Example idea:

Qh5+ → opponent must block, move king, or capture

This reduces possibilities.

2️⃣ Look for Captures

Next ask:

“Can I capture something?”

Captures often create forced exchanges, allowing deeper calculation.

Example:

Nxe5 → opponent must recapture or defend

3️⃣ Look for Big Threats

Threats force reactions.

Examples:

  • Mate threats

  • Forks

  • Skewers

  • Discovered attacks

Example of 6-Move Calculation

Instead of analyzing 20 moves, you calculate a forcing sequence:

1. Qh7+  
   → Kf8
2. Qh8+  
   → Ke7
3. Qxg7
   → Rf8
4. Qe5+
   → Kd7

Because every move is forcing, you can calculate many moves quickly.

🧠 Another Secret Trick: “Chunking”

Grandmasters remember patterns, not individual moves.

For example they instantly recognize:

  • Mate patterns

  • Fork patterns

  • Endgame structures

This is why Magnus Carlsen seems to calculate very fast.

You can build this skill by solving puzzles on:

  • Chess.com

  • Lichess

🧩 10-Minute Daily Calculation Exercise

  1. Open puzzles.

  2. Do not move pieces.

  3. Calculate 5 moves in your head.

  4. Then check the solution.

Do 20 puzzles daily.

Within 2–3 months, your calculation depth increases dramatically.

✅ Quick mental rule used by strong players

CCT Rule
Checks
Captures
Threats

Always calculate them first.

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