[LashOut]

As the solution of Bridge Master goes, playing low from dummy at the very beginning caters 2 distributions, which includes 5 situations:
AJ??? - K? (4)
A???? - KJ (1)

And playing T caters 1 distribution, which includes 6 situations:
AJK?? - ?? (6)

Meanwhile, playing Q caters another 1 distribution, which includes 4 situations:
AK??? - J?(4)

So mathematically speaking, I think playing T is the best choice instead of playing low.

[smerriman]

West led the 8 of spades, 4th best. There are only 8 possible holdings - AJ98x, KJ98x, AKJ8x, or AK98x, where x is either 6 or 7, making those 4 cases all equally likely, and low catering to two of them.

[LashOut]

smerriman, on 2025-December-14, 02:07, said:

West led the 8 of spades, 4th best. There are only 8 possible holdings - AJ98x, KJ98x, AKJ8x, or AK98x, where x is either 6 or 7, making those 4 cases all equally likely, and low catering to two of them.

Thanks. I found that I made two mistakes. One is to ignore that 8 was already played by West. Another is to mix West with East while considering -- I really should have put KJ?? - A? rather than A??? - KJ in the second distribution where low caters.

Your reply helps a lot.