Baseline is a free No-Limit Texas Hold'em solver and trainer, accessible from web browser.

// Study strategies. Practice decisions. Play unassisted matches.

Study

Inspect solver strategies for a spot. See ranges, strategies, and expected value (EV) through the game tree.

Trainer

Practice common decisions with immediate feedback: EV loss and the closest solver-approved action.

Challenge

Play without help during the hand. Review afterward to compare your lines to the solver and track results over a match.

Technical Overview

A high-performance implementation built for stable subgame re-solving and large-scale equilibrium auditing.

The live solver utilizes Pure MCCFR with depth-limited solving to compute local strategies for the current public state (board + action history). By using reach solving and accounting for the "gift" (EV already conceded by prior deviations), the solver avoids overspecializing to a fixed opponent range, keeping real-time refinements stable and non-exploitable.

Subgame solving is anchored to a blueprint generated via Discounted CFR. Following the bias approach, the blueprint is perturbed into a small set of intelligent strategies, which serves as the depth-limit continuation we evaluate against. To maintain a compact storage footprint, the blueprint employs robust, sparse betting trees designed to minimize exploitation when play deviates from the primary abstractions.

In Progress: Extending strategic stability logic to 3+ player environments. This research focuses on refining equilibrium nodes in multi-way pots, mitigating the strategic instability often triggered by multi-agent dynamics and irrational opponent play.

System Specifications

Abstraction Logic

DCFR / Sparse Robust Trees / Potential-Aware Clustering

Research Area

Multi-Way (N ≥ 3) Stability

Compute Substrate

C++20 / i9-13900K / 128GB DDR5 RAM

Arena

A standardized environment to estimate strategic exploitability. The Arena supports both manual unassisted play and autonomous agent benchmarking against Baseline's blueprint.

Play a Session

Designed for humans. Play unassisted hands against the bot.

START SESSION

Test a Bot

Challenge Baseline with your own agent and run head-to-head matches. Manage your agents here.

API DOCS

Protocol: JSON-over-HTTP / State exchange

Results Against Slumbot

AgentYearHandsResult (BB/100)
DeepStack (DeepMind) [reimplementation]2017150,000-6.3
ReBeL (Meta)2020-+4.5
Baseline Instant v12023100,000+3.4
GTO Wizard2023150,000+19.4
Baseline Instant v2202420,000+10.9
Baseline Thinking202410,000+18.1

Read more about our AI agent's evolution.

Mail: contact [at] baseline.poker