H. G. Muller wrote on Wed, May 29, 2019 12:25 PM UTC:
The previous version was still plagued by a woken-up 'sleeper bug': all the end-game discounting worked fine when I tested it on setup positions for the end-game, but it did not apply it when the same end-game was reached in games! Turned out castling messed up the Rook counter, which had never mattered before, as the count was not used. But now it made the drawishness code think both sides had (tons of) Rooks. I uploaded a fixed version ("KingSlayer cwda-1.2") to the same link. This also prints some results of the drawishness detection for the root as part of the Thinking Output, so that it can be easily seen when it misjudges. Like Fairy-Max it slightly randomizes the first 8 ply of any game, (adding -8 to +7 cP to the score of each move in the root), to provide more game diversity in test runs.
The previous version was still plagued by a woken-up 'sleeper bug': all the end-game discounting worked fine when I tested it on setup positions for the end-game, but it did not apply it when the same end-game was reached in games! Turned out castling messed up the Rook counter, which had never mattered before, as the count was not used. But now it made the drawishness code think both sides had (tons of) Rooks. I uploaded a fixed version ("KingSlayer cwda-1.2") to the same link. This also prints some results of the drawishness detection for the root as part of the Thinking Output, so that it can be easily seen when it misjudges. Like Fairy-Max it slightly randomizes the first 8 ply of any game, (adding -8 to +7 cP to the score of each move in the root), to provide more game diversity in test runs.