Interesting hand - looks like a rule error

[thorvald]

[hv=url=https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn%7CHuman%2CRobot%2CRobot%2CRobot%7Cst%7C%7Cmd%7C3SK532HAK4DACAKT52%2CSAT8HQ765DKJ954CQ%2CSQJ964HT932DT6C63%2CS7HJ8DQ8732CJ9874%7Csv%7CE%7Cah%7CBoard%209%7Cmb%7CP%7Cmb%7CP%7Cmb%7C1C%7Can%7CMinor%20suit%20opening%20--%203%2B%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points%7Cmb%7CD%7Can%7CTakeout%20double%20--%202-%20%21C%3B%203-5%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012%2B%20total%20points%7Cmb%7CP%7Cmb%7C1D%7Can%7C4%2B%20%21D%3B%209-%20total%20points%7Cmb%7CD%7Can%7C3%2B%20%21C%3B%202%2B%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points%7Cmb%7C3D%7Can%7C2-%20%21C%3B%205%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012%2B%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7CD%7Can%7C3%2B%20%21C%3B%202%2B%20%21D%3B%2011-21%20HCP%3B%2012-22%20total%20points%7Cmb%7CP%7Cmb%7C3H%7Can%7C4%2B%20%21H%3B%208-%20total%20points%7Cmb%7CP%7Cmb%7CP%7Cmb%7CP%7Cpc%7CS7%7Cpc%7CS2%7Cpc%7CST%7Cpc%7CSQ%7Cpc%7CH2%7Cpc%7CH8%7Cpc%7CHA%7Cpc%7CH6%7Cpc%7CHK%7Cpc%7CH7%7Cpc%7CH3%7Cpc%7CHJ%7Cpc%7CH4%7Cpc%7CHQ%7Cpc%7CH9%7Cpc%7CC4%7Cpc%7CD9%7Cpc%7CD6%7Cpc%7CD2%7Cpc%7CDA%7Cpc%7CSK%7Cpc%7CSA%7Cpc%7CS4%7Cpc%7CC9%7Cpc%7CDK%7Cpc%7CDT%7Cpc%7CD3%7Cpc%7CC2%7Cpc%7CD5%7Cpc%7CHT%7Cpc%7CD7%7Cpc%7CC5%7Cpc%7CSJ%7Cpc%7CDQ%7Cpc%7CS3%7Cpc%7CS8%7Cpc%7CS9%7Cpc%7CC7%7Cpc%7CS5%7Cpc%7CH5%7Cpc%7CDJ%7Cpc%7CC3%7Cpc%7CD8%7Cpc%7CCT%7Cpc%7CD4%7Cpc%7CC6%7Cpc%7CCJ%7Cpc%7CCK%7Cpc%7CCQ%7Cpc%7CS6%7Cpc%7CC8%7Cpc%7CCA%7C]399|300[/hv]

 

First south has an opening problem, and 2N could be right

 

After opening 1♣ West had a normal T/O Double.

 

After Souths T/O double it is interesting that West can bid 3♦ just promising an opening hand and 5♦, East had shown nothing, and EW vulnerable.

 

Now after Souths second T/O double (this should show extra just as the previous double) it is interesting, that North bids the 4-card major

 

Result 2 down, where 4♠ is lay down

 

(And lesson learned should be to bid 1♠ instead of the first T/O Double)

[pescetom]

North's preference for hearts is crazy, but not unprecedented.

I don't think an initial 2N could be right, if anything 2♣ and then 2N.

Not sure about your lesson: what would 2♦ now show?

[smerriman]

After Souths T/O double..

 

Now after Souths second T/O double..

 

.. instead of the first T/O Double

South hasn't made a takeout double. Double of 1♦ is undefined for the robot (as you can see from the description), as is the second double. You're very lucky it didn't pass the second double, as most of the time it'll pass undefined bids, but there was a fallback rule in this case to allow it to bid any 4 card suit.

[michel444]

it seem some robot are more agressive then other ...

west raise to 3♦ is very agressive

north pass on t/o double is very passive