Successor of Schneckbert and hobby-project of Nikolas Windheuser.
The goal is to optimize for playing strength while maintaining the fun in development.
Truncator is UCI compliant and thus compatible with modern Chess Interfaces or Matchrunners.

Besides the standard commands uci, isready, stop, quit, ucinewgame, position and go there are a couple ucioption's and custom commands.

Hash sets the size of the Transposition Table in mb.
Threads sets the number of threads that are used via Lazy SMP while searching.
Threads is broken in release 1.0, always set to 1 or the program crashes!
Move Overhead sets the minimum overhead to be respected by time mangement. SyzygyPath is used for Syzygy Tablebase probing and makes use of an integrated Fathom dll. Syzygy probing is only available on windows right now! UCI_TbLargest overwrites the maximum piececount that allows Zyzygy probing. E.g. shrinks available 7 man tables to be only used at 6 pieces or less. Softnodes sets a softnodelimit to be checked between each iteration. Hardnodessets a hardnodelimit to be checked on every node searched.

print prints an ASCII representation of the current boardstate of the MainThread.
bench runs the custom bench command, that serves the purpose of a finerprint for every engines version. Also used to approximate NPS.
perft runs a custom set of perft positions on a set depth. Used to verify development changes didnt break movegen.
pgtoviri additionally accepts the path to a directory. Reads all PGNs in that directory and creates a converted.viriformat file with all games combined.

UCI_Chess960, Multipv, ponder and fixed Threads commands will come in the near future.
Be carefull when running Truncator on hyperthreadding - especially when run multithreadded - it has a tendecy to rarely crash during startup, with increasing probability to the number of 'too many' threads.

Very Special thanks to:
the Stockfish Discord and the Engine Programming Discord,
for allowing conversations and a place to get high quality advice (and shitposts), as most usefull information is hidden away in engines or the heads of their developers.

The Weiss engine and developer, the Ethereal engine and developer, the Stormphrax engine and developer, and Stockfish engine and developers, because sometimes you just need a reference on how an implementation might look like, e.g. probcut and Syzygy probing inplementations.

The Openbench framework and its Author Andy Grant for allowing me to use destributed sprt's, spsa's and datagenning, the Fathom Syzygy probing Code and developers to allow Truncator to have Tablebase probing, and the Bullet author to allow me to efficiently train NNUE's.

It's save to say, that neither Truncator, nor Schneckbert would have come into existance without the open-mindedness and open-source culture of the chess engine dev community.
It's a hard path to walk alone but luckily nobody has to!
Whenever i asked a question, someone was willing to answere :)