IJCCRL — Rules & Audit
Methodology is implemented as sealed conditions + post-event audit. Only audited events feed the public standings and rating lists.
What “Audit PASS” means
- Complete PGN with final results for all games (no unfinished games published).
- Deterministic pairing integrity verified under the event format actually used.
- No duplicate games detected (D1/D2 fingerprints).
- Colour balance per engine verified for round-robin events.
- Exact side balance verified for fixed duel events (for example, 50 White / 50 Black in a 100-game semifinal or final).
- Termination and TB evidence recorded in PGN tags.
Duel-format clarification: in semifinals and finals played as fixed mirrored opening matches, pairing integrity is audited by mirrored opening set unit, not by a bare standalone reading of cycle / pairIndex / pairGameNo. Under this criterion, each opening set must be a two-game mirror: the same ECO/opening block is played once from each colour side, with leg mirror swap verified.
Latest audited event: I SF2 IJCCRL Blitz 2026 — Stockfish 18 vs Caissa 1.24 POPCNT ✅ PASS
Minimal reproducibility set
PGN out/games.pgn
results.json out/results.json
scheduler_state out/scheduler_state.json
PGN SHA256 6dadabe23273ffaa64b49375b3bb6c9b8dd5f9279b1d6468ef3be5d1b9db05d2
We recommend publishing a ZIP per event with these artifacts + hashes (stable URL).
Audit scope by format
- Round-robin events: complete PGN, deterministic pairing integrity, D1/D2 duplicate control, colour balance per engine, and termination/TB evidence.
- Duel events: complete PGN, mirrored opening set integrity, leg mirror swap verification, exact side balance, D1/D2 duplicate control, and termination/TB evidence.