Node

What is a Node?

Node, in Chinese it is callednode,It means In the Game Tree, a new Node is formed each time it is a player's turn to make a decision.

Every action represents entering a new decision-making stage.

Why is Node.js important?

This is because:
→ Each Node has a different Range
→ Each Node has a different EV
→ Each Node has a different optimal strategy
→ Solver analyzes each node independently.

The optimal strategy may be completely different for different nodes.

The relationship between Node and Game Tree

Game Tree isThe tree structure formed by all possible decisions in the entire game

Node is Each branch decision point in the Game Tree

The Game Tree is composed of a large number of Nodes.

How does Solver analyze Nodes?

The Solver will perform calculations for each Node:
→ Range
→ EV
→ Bet Size
→ Bluff Frequency
→ Mixed Strategy

Each Node has its own optimal GTO solution.

Relationship between Node and Node Lock

Node Lock isManually modify the opponent's strategy on a specific Node.For example：
→ Increase Bluff
→ Reduce Bluff
→ Add Fold
→ Add Call

Node Lock is used to modify the decision-making method of a specific node.

Practical Examples

When Flop,You choose Check, andOpponent's bet

At this point, a new node begins. The Solver will recalculate the Range, EV, and optimal strategy for both sides, instead of using the answer from the previous node.

Every action can potentially change all subsequent strategies.

Common Misconceptions for Beginners

Many players believeAll similar hand values can be handled using the same strategy.In factIf any one of the nodes changes—for example, the bet size, position, or board position—the Solver's optimal strategy can be completely different.

What's truly important is analyzing the current node, not applying fixed strategies.

Key conclusions

The Node is the most basic unit of analysis in modern Texas Hold'em Solvers and GTOs, and it is also an important foundation for understanding the Game Tree.

Understanding the concepts of Node, Game Tree, Solver, Node Lock, Range, EV, Mixed Strategy, GTO, and Exploit will help you gradually build a complete decision-making framework, learn to make the best choices at different nodes, and improve the overall quality of your strategy and long-term profitability.