Baseline is a free No-Limit Texas Hold'em solver and trainer, accessible from web browser.
// Study strategies. Practice decisions. Play unassisted matches.
Inspect solver strategies for a spot. See ranges, strategies, and expected value (EV) through the game tree.
Practice common decisions with immediate feedback: EV loss and the closest solver-approved action.
Play without help during the hand. Review afterward to compare your lines to the solver and track results over a match.
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.
Search / Execution
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
A standardized environment to estimate strategic exploitability. The Arena supports both manual unassisted play and autonomous agent benchmarking against Baseline's blueprint.
| Agent | Year | Hands | Result (BB/100) |
|---|---|---|---|
| DeepStack (DeepMind) [reimplementation] | 2017 | 150,000 | -6.3 |
| ReBeL (Meta) | 2020 | - | +4.5 |
| Baseline Instant v1 | 2023 | 100,000 | +3.4 |
| GTO Wizard | 2023 | 150,000 | +19.4 |
| Baseline Instant v2 | 2024 | 20,000 | +10.9 |
| Baseline Thinking | 2024 | 10,000 | +18.1 |
Read more about our AI agent's evolution.