[1eyedjack]

IMPs!!

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This was a Robot duplicate, best hand South, IMP game. Traveller 8207-1373053801-59778513

They got their cross-ruff going so I slid two down at table 18. But the point of interest for me was East's decision to double me into game. I might take a flyer at MP (not!) but at IMPs?
When I click on the X it is described as:

"2- S; 10+ HCP; biddable H; 12- total points"

OK, so where are the "10+ HCP"?

It is perhaps mildly surprising (particularly in light of what happened at another table, shown below), that North chose to pass the 2H overcall, given that GIB describes the 2H as

"Rebiddable H; 13-18 total points"

Meanwhile, at another table (10), the bidding went:

W.....N.....E.....S
1S....P....1N....P
2C....P.....2D....2H
P....2N.....P.....3N
P.....P......P

Here the 2H bid is described as

"5+ H; 10+ HCP, 20- total points"

I suppose that the possibility of South having 19-20 total points on this auction is what propelled North into 2N at this table when he passed at mine, but I find the logic tenuous. And he managed to pursuade East not to double 3N here where he was happy to double 2H into game at our table.

As an aside, I am not keen on East's choice of 2D on this hand. Granted that the 2C bid might be on a 3 card suit it would still be my preference to pass 2C. What do others think?

Clicking on the 2N reveals the explanation
"11-13 HCP; stop in D"

OK so where is the 11 HCP?