Zitat von
spacious_mind
Thanks, so you think the problem is castling rights, which also adds the extra search time? (13 seconds to 31 seconds). Unfortunately, with FEN's there are loads of positions where castling remains an option. So, I guess I skip FEN's and just do the manual entry if I am testing games.
Yes, I'm quite sure that castling rights are the reason for this difference.
But it depends on the engine: some engines may always allow castling (after a position setup) when the king and the rook(s) are still in their original positions, others may not.
Zitieren:
Are speed ups reliable will I get the same moves at 300% as I would at 100% or is that also inconclusive?
As long as your computer is powerful enough to run the emulation with the speed value (x%), you will indeed get the same moves.
You can check this with 'Options > Show FPS' (or key F11) in the engine window: if the value in the upper right corner is about the same as your speed value (x%), then the emulation is correctly running with this speed.