Free Pairings Checker
Verify the pairings of a completed FIDE Dutch Swiss tournament against the bbpPairings engine — the SPP-endorsed reference implementation. Upload a TRF-16 file; for every round, the checker recomputes what the pairings should have been and reports discrepancies. Free, no login.
Paste or upload a TRF file from a finished tournament — every round filled in with results (1, =, 0, H, etc.). The engine audits each round in turn and flags any board where the recorded pairing differs from what the FIDE Dutch System would have produced.
What this is
A public auditor for FIDE Dutch Swiss tournaments. Required for SPP-endorsed pairing software per C.04.A.5. Backed by bbpPairings v5.0.1, the engine that powers Chessmates' FIDE-rated tournaments.
How to use
Upload (or paste) a completed tournament's TRF — every round filled in with results. The engine walks through each round, regenerates the pairings the FIDE Dutch System would have produced, and shows you which boards (if any) don't match the recorded pairing.
About Chessmates
Chessmates is a chess meetup & tournament app. We use the bbpPairings engine for all FIDE-rated events. Open the main app →