Do I know my GIBBO!

[virgosrock]

[hv=http://www.bridgebase.com/tools/handviewer.html?lin=pn%7CVirgosRock%2CHUMAN%2CRobotN%2CRobotE%7Cst%7C%7Cmd%7C2S2489TQKAHQADKAC3%2CS67H6D3467TJQC29A%2CS3JH257JKDC468TQK%2C%7Crh%7C%7Cah%7CBoard+12%7Csv%7Cn%7Cmb%7C3D%7Can%7CPreempt+--+7%2B+%21D%3B+5-9+HCP%3B+%21DQ%3B+6%2B+total%7Cmb%7C4C%7Can%7C6%2B+%21C%3B+16-19+total+points+%7Cmb%7Cp%7Cmb%7C4N%7Can%7CBlackwood+%28C%29+--+2%2B+%21C%3B+16%2B+total+points%7Cmb%7Cp%7Cmb%7C6C%7Can%7COdd+number+of+keycards.+Void+above+C+--+6%2B+%21C%3B+16-19+total+points+%7Cmb%7Cp%7Cmb%7C6N%7Can%7C2%2B+%21C%3B+16%2B+total+points%7Cmb%7Cp%7Cmb%7Cp%7Cmb%7Cp%7Cpg%7C%7Cpc%7CDQ%7Cpc%7CC4%7Cpc%7CD2%7Cpc%7CDA%7Cpg%7C%7Cpc%7CHA%7Cpc%7CH6%7Cpc%7CH2%7Cpc%7CH3%7Cpg%7C%7Cpc%7CHQ%7Cpc%7CD3%7Cpc%7CH5%7Cpc%7CH4%7Cpg%7C%7Cmc%7C13%7C%0A%0A]399|300[/hv]

 

Almost jumped to 7NT after 4C. But I said wait a minute, who in tarnation knows what GIBBO is up to. Came out on the bright side this time.

Was fortunate it did not convert to 7C.

 

vrock

[The_Badger]

Well done, a result! But a human East would have bid 6♦ like a shot at this vulnerability. As for bidding 4♣ with the North hand vulnerable in 2nd, well it's aggressive at best, suicidal at worst.