How to Correctly Use Solver to Improve Your Poker Skills

What is a Solver?

A Solver is a type of software specifically designed for Texas Hold'em poker. It uses mathematical calculations to find the Game Theory Optimal (GTO) strategy for a given situation. The most well-known commercial solvers include PioSolver, GTO+, and Simple Postflop. Solvers are not omnipotent; they output a Nash equilibrium solution based on the input ranges and tree structure. However, in actual play, players need to adjust according to their opponent's tendencies.

How Solvers Work

Solvers use the Counterfactual Regret Minimization (CFR) algorithm to iteratively compute the equilibrium strategy at each decision node. The user needs to input:

• Initial ranges (e.g., preflop BTN vs BB ranges)
• Board texture
• Pot size, stack depth, and raise structure

The solver outputs the frequency of each action (e.g., bet 33% pot with 70% of range, check 30%) and the specific combos' action choices (e.g., whether AKo is a check or bet on a certain board).

How to Use Solvers Correctly

1. Start with Simple Scenarios

Don't start by analyzing complex multi-way pots. It's recommended to begin with heads-up, single-flop situations, such as CO vs BB on a K♠8♥3♣ flop. Gradually add different turns and rivers to understand how the strategy changes with the board texture.

2. Focus on the Logic Behind the Strategy, Not Just the Numbers

A solver's output is essentially a set of numbers. Beginners tend to memorize frequencies rigidly, but the key is to understand why a certain combo chooses to bet or check. For example: on a dry flop, the solver tends to c-bet at a high frequency because the opponent's defending range is weaker; on a wet board (like 8♠7♠6♥), more checking is needed to protect your range.

3. Combine Solver Results with Opponent Types

The GTO strategy given by a solver is "exploit-proof," but in actual play against weak opponents, exploitative adjustments can be used. For example: if a opponent folds too much on the flop, you can bet your entire range even if the solver suggests checking with some combos. The solver provides a baseline to help you understand when deviations are profitable.

4. Train Your Own Thought Process

After manually inputting into a solver and observing the results, try to logically deduce why a certain strategy is equilibrium. For example: in a BTN vs BB heads-up scenario, the solver might bet small with some combos and large with others on a certain turn card. You can think: "If I were BB, how would I respond?" This bidirectional thinking enhances your understanding of the game.

Practical Example

Assume you are on the BTN and raise to 2.5BB, BB calls. Flop: Q♠T♠5♦. Pot: 5.5BB, effective stacks 100BB. You consider whether to c-bet.

Using a solver, input: BTN preflop range ~40% of hands (assuming standard), BB calling range ~30%. After solving, the solver shows:

• Overall betting frequency around 65% (2/3 pot-sized bet).
• Betting range includes: top pair or better, draws (e.g., JT, KJ, etc.), and some backdoor draws.
• Checking range includes: medium-strength hands (e.g., A5s, 77-99) and weak hands (e.g., KJo without a draw).

Key logic:

• Value bet with strong hands, semi-bluff with draws.
• Check medium-strength hands to avoid being raised into a tough spot.
• Check-fold weak hands unless the opponent is exploitable.

You can compare this with your original c-bet strategy. If you find you c-bet too often, the solver reminds you that certain hands should be checked to protect your range.

Common Misconceptions

Misconception 1: The Solver Gives the "Perfect Answer"

The solver's results depend strictly on the input ranges and tree structure. If your input ranges are inaccurate (e.g., you assume the opponent always calls but they often 3-bet), the results will be wrong. Solvers are tools, not the truth.

Misconception 2: Memorizing Frequencies Without Understanding the Principles

Some players spend a lot of effort memorizing the exact betting frequency percentage for a specific board but don't understand why. This leads to being clueless when encountering similar but different boards. A better learning method is: think for yourself first, then use the solver to verify, and finally review the reasons for any differences.

Misconception 3: Ignoring Range Construction

Solvers require precise preflop ranges. Many players use default ranges, but their actual preflop strategy may differ (e.g., some players fold AJo on the BTN). If the input range does not match your actual play style, the solver's output cannot be directly applied.

Misconception 4: Over-Reliance on Solvers Leads to Mechanical Play

Poker is a game against people. Solvers help you understand equilibrium, but they cannot replace reading opponents. At lower stakes, exploitative strategies often make more money than GTO. Therefore, you should treat solvers as learning tools, not as "playback machines" in real games.

Summary

Solvers are powerful tools to improve your poker skills, but using them correctly requires:

• Understanding their principles and limitations.
• Starting with simple scenarios and gradually deepening.
• Focusing on the logic of the strategy rather than memorizing numbers.
• Combining with opponent characteristics for exploitative adjustments.
• Keeping thinking and avoiding mechanical play.

Ultimately, solvers should be a catalyst for your thinking, not a substitute. Only by integrating solver output with practical experience can you truly evolve.