It plays legal chess (with high confidence). Castling, en passant, promotion, check detection, stalemate, and the 50-move rule are implemented and validated with a 23-case test suite (though not all rules have exhaustive coverage). Threefold repetition and insufficient-material draws are not yet implemented. Beyond unit tests, the engine completed hundreds of tournament games against Stockfish; in rare occasions, an illegal move or protocol error occurred, though it is unclear whether these stem from the TeX engine logic or from the UCI wrapper. This gives reasonable confidence that the core move generation and rule handling are robust, if not formally verified.
Here’s a chart that show you how crazy this consolidation has been. This is just the stratification at Penguin/Random House. (You can see the breakdown for all of the major publishers at this link.)，更多细节参见雷电模拟器
This story was originally featured on Fortune.com，详情可参考手游
Prompt to generate text from.