Calculating trees of variations
In short
Complex positions require calculating several replies to each candidate move. Calculate each branch once, clearly, and evaluate where it ends.
By the end you can
- Calculate main and side branches
- Evaluate at the end of each line
The lesson
Complex positions require calculating several replies to each candidate move. Calculate each branch once, clearly, and evaluate where it ends. Avoid jumping back and forth between branches — it wastes time and creates errors.
Start with the most forcing opponent replies. If your candidate holds up against them, the quiet replies are usually less dangerous. Write the tree on paper in training to make the structure visible.
Key points to remember
- Each branch once, in order
- Forcing replies first
- Evaluate at the end of every line
- Write trees in training
Examples
Show the solution
34. gxf6 Bxf6 35. Nd5+ Kxa4 36. Nxf6
Homework
Three long puzzles a day, writing the tree.
More calculation lessons
- Calculating without moving the pieces (Class D)
- The art of defence (Class B)
- A calculation method for hard positions (Class A)
- Endgame studies for imagination (Class A)
- Calculation under pressure (Expert)
- Finding the opponent’s resources (Master)