Why do Bots Bid Differently for Different Humans?

[zdas04]

I just played a hand in a Robot Tournament (IMP 5177). On Board 12 the bidding went P - P (partner) -P -1S(me) -P -1N (partner) - P - 2H (me) - all pass. I finished and watched a half dozen other people play it and EVERY SINGLE TIME the bidding went P - P (N)-P-1S(S)-P -1N (N) - P - 2H (S) - P - 4H (N) - all pass. Can anyone tell me why the Bot would leave me in 2H and take everyone else to game (everybody made 4H)?

[etha]

Its bidding is non deterministic. Let's say it is choosing between 2♥ and 4♥. It deals itself number of hands and looks at the best outcome. This obviously may be different depending what hands it deals for itself.

[hrothgar]

This obviously may be different depending what hands it deals for itself.

 

I was under the impression that the advanced robots use the same seed

[barmar]

I looked at the traveller for this board, there's only one player in 4♥. They rebid 3♥ rather than 2♥. There's also someone in 5♥ after that 3♥ rebid. Most players ended up in 4♠, either by opening that or jumping to 3♠ or 4♠ after the 2NT response.

 

http://www.bridgebase.com/myhands/hands.php?traveller=5177-1565213041-18281403&username=zdas04

 

There were several players who didn't finish board 12. But they never even started it, they all dropped out earlier, so they couldn't be what you saw, either.

[etha]

I was under the impression that the advanced robots use the same seed

 

 

Oh sorry didn't know that.