Seeded Dataset
Lichess Open Database
Chess (move-level) · imported 2026-04-12 · sha256:9f2a…c41b
← DatasetsSeeded Demo
Records
4,812,044
Actors
18,204
Outcomes
Stockfish eval (100%)
Imported
2026-04-12
Status
calibrated
Schema Mapping
source → DecisionEvent| source field | DecisionEvent field | |
|---|---|---|
| player_id | → | actor_id |
| move | → | decision |
| stockfish_eval | → | ground_truth |
| ply | → | sequence_idx_case |
| clock_ms | → | context_features.time_remaining |
Data Quality
Actor Coverage100.0%
Outcome Coverage100.0%
Temporal Coverage100.0%
Ground Truth Confidence99.0%
Calibration Readiness
96
/ 100
Ready
Stockfish provides deterministic ground truth at every ply. Player identity is persistent across games. Full temporal ordering available.
Sample Records
first 3 raw rows| game_id | player_id | ply | move | clock_ms | stockfish_eval |
|---|---|---|---|---|---|
| g_8812 | p_001 | 17 | Nxd5 | 64200 | -42 |
| g_8812 | p_044 | 18 | exd5 | 71040 | -48 |
| g_8813 | p_001 | 19 | Qh4 | 58110 | -120 |