Double shmouble, Aces shmaces

[smerriman]

Just another 50% board in a challenge.

[hv=https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn%7Csmerriman%2CRobot%2CRobot%2CRobot%7Cst%7C%7Cmd%7C1ST842HKTDAQ95CT87%2CSAJ96HA943DKJ2CA6%2CS75HJ7652D7643C93%2CSKQ3HQ8DT8CKQJ542%7Csv%7CB%7Cah%7CBoard%207%7Cmb%7CP%7Cmb%7C1N%7Can%7Cnotrump%20opener.%20Could%20have%205M.%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points%7Cmb%7CP%7Cmb%7C2N%21%7Can%7CMinor%20transfer%20--%206%2B%20%21C%7Cmb%7CP%7Cmb%7C3C%7Can%7CTransfer%20completed%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2015-17%20HCP%3B%2018-%20total%20points%7Cmb%7CP%7Cmb%7C3N%7Can%7C6%2B%20%21C%3B%2013-15%20HCP%7Cmb%7CP%7Cmb%7C4N%7Can%7CBlackwood%20%28C%29%20--%202-5%20%21C%3B%202-5%20%21D%3B%202-5%20%21H%3B%202-5%20%21S%3B%2017-%20HCP%3B%2018%20total%20points%7Cmb%7CP%7Cmb%7C5D%7Can%7COne%20or%20four%20key%20cards%20--%206%2B%20%21C%3B%2013-15%20HCP%7Cmb%7CD%7Can%7C6-11%20HCP%3B%20rebiddable%20%21D%3B%20%21DKQ%3B%2012-%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7C7C%7Can%7C6%2B%20%21C%3B%2015-%20HCP%3B%2017%2B%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7CD%7Can%7C1%2B%20%21D%3B%2018%2B%20HCP%3B%2019-20%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7CP%7Cpc%7CD3%7Cpc%7CDT%7Cpc%7CDA%7Cpc%7CD2%7Cpc%7CD5%7Cpc%7CDK%7Cpc%7CD7%7Cpc%7CD8%7Cpc%7CCA%7Cpc%7CC3%7Cpc%7CC2%7Cpc%7CC7%7Cpc%7CC6%7Cpc%7CC9%7Cpc%7CCK%7Cpc%7CC8%7Cpc%7CCQ%7Cpc%7CCT%7Cpc%7CH4%7Cpc%7CH2%7Cpc%7CH8%7Cpc%7CHT%7Cpc%7CHA%7Cpc%7CH6%7Cpc%7CS6%7Cpc%7CS5%7Cpc%7CSK%7Cpc%7CS2%7Cpc%7CCJ%7Cpc%7CS4%7Cpc%7CH3%7Cpc%7CH7%7Cpc%7CC5%7Cpc%7CD9%7Cpc%7CH9%7Cpc%7CD6%7Cpc%7CC4%7Cpc%7CDQ%7Cpc%7CS9%7Cpc%7CS7%7Cpc%7CS3%7Cpc%7CS8%7Cpc%7CSJ%7Cpc%7CD4%7Cpc%7CSA%7Cpc%7CHJ%7Cpc%7CSQ%7Cpc%7CST%7Cpc%7CDJ%7Cpc%7CH5%7Cpc%7CHQ%7Cpc%7CHK%7C]400|300[/hv]

Nice double by North, I guess.

[thorvald]

Very interesting, how the West bot has no clue about what to bid, while the East bot expects it to be asking for trump Queen.

 

I assume without the Double West would have bid 6♣, so another case for implementing "ignorable doubles" in GIB

 

Also interesting with the final double based on partners bidding.