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A one-letter typo in the syzygy codebase: sizt_t util.c, line 303: static void decompress(struct CompressState *state, void *dst, sizt_t chunk, This branch must not be covered in the regression tests. The line is conditional compiled out by the makefile as distributed, i.e. -DUSE_ZSTD invokes the zs...

On my end I believe I now have a complete and correct set. On your side as you (Sesse) noticed, you had an old version of KRRNvKRR.rtbz, the give-away being the file size discrepancy compared to the lichess ftp listing. The remaining five -- KNNPPvKR.rtbw, KQBNvKQN.rtbw, KQRPvKRB.rtbw, KRBBNvKQ.rtbz...

I like sha256. It takes twice as long as md5 to generate and verify, though. Or, half the time of sha512, if you want to look at it that way.

Attached is a set of md5sums files for the complete set. If anyone would care to cross-verify I'd appreciate it. Back in the day of Nalimov promulgation, circa 2005-2006, md5sum signatures were considered essential to ensuring transmission correctness. I believe this is still true even though the sy...