Modern Field Analysis — Solver Research

Exploits & Theory · updated 2026-03-08

Main Tools

• Hand2Note Research — analyzes player pool behavior using large hand databases.
• Solver (Simple Postflop, GTO Wizard) — calculates strategies and adapts them.

Hand2Note Research

What It Is

• Set parameters (e.g., barrel river after barrel flop and turn).
• H2N generates tables with folds, calls, raises, showdown hands, win rates, and sizing frequencies.

Requirements

• Databases from 200K to 20M+ hands.
• For deep river analysis, millions of hands are needed.
• Possible to split database into regs, recreational players, nits.

GTO & Counter-Strategies

Basic Logic

• The solver calculates a decision tree and outputs a GTO strategy based on given ranges and sizings.
• You can edit the opponent’s strategy to reflect real pool tendencies — then recalculate.

Workflow

1. GTO calculation: standard ranges, standard play.
2. Adjustments: set real field tendencies in the editor.
3. Recalculate: get an exploitative strategy.

Example Analysis: Flop 8♠ 8♠ 6♠

• Effective stacks: 45 bb → flop pot ≈ 6.5 bb.
• GTO: 62% check, 37% bet.
• After adjustments: 100% bet — due to increased fold equity, smaller raise sizes, and lack of bluffs.

Counter-Strategies: Key Points

• The pool overvalues showdown, underuses bluffs.
• Raises less often, calls more often.
• Because of this, it’s often profitable to barrel more or use non-standard sizings.

Balancing the Check

Goals

• Deny auto-profit on opponent bets.
• Extract value from bluffs.
• Keep strong hands in the check line.

Approximate Frequencies (up to NL50)

• Check-fold: ~45%
• Check-call: ~40%
• Check-raise: ~15%

Check-Call

Suitable Boards

• Dry, paired, low (8-2-3, 7-7-4, etc.)

Hands

• Ace-high with backdoors
• Middle pairs
• Overcards with float equity

Check-Raise

Goals

• Protect against draws.
• Extract value from bluffs.
• Balance and disguise hand strength.

Boards

• Draw-heavy, action-heavy (9♣ 8♠ 6♣, etc.)

Hands

• Overpairs, sets
• Strong flush draws
• Top pairs with backdoors

Conclusion

Ideal approach: analyze the field with H2N, set realistic ranges in the solver, and create exploitative counter-strategies.