I didn't want to risk 3NT and bid 4♣ instead showing "twice rebiddable ♣, 4+♠, 15 - 22 tp", quite my hand. Robot partner somehow bid 4♦ labeled "twice rebiddable ♦, 10+ total points". This is an incredibly bad bid because
- the hand has only 5 ♦ cards, not 6;
- the bid conceals our 6-3 fit in ♣;
- the robot should realize that I cannot possibly have more that 3 ♦ cards; and finally
- the hand does not have 10+ total points.
For all these reasons I raised to 5♦ going down several times for 2.94 % where I could have played 4♣+1 with the field for 77.94 % or, who knows, even 5♣= for 98.53 %.
(BTW: One player reached 5♣ by bidding 3♠ which promises "rebiddable ♠".)
[Sorry for the graph, I don't know how to increase the size.]