strange lead, robot paid for it

[goffster]

https://www.bridgebase.com/tools/handviewer.html?bbo=y&lin=pn%7Cgoffster%2CRobot%2CRobot%2CRobot%7Cst%7C%7Cmd%7C2ST7HAKDAQJ65C8754%2CSQ832H7DKT43CJT92%2CSAJ95HQ953D87CAQ6%2CSK64HJT8642D92CK3%7Csv%7CB%7Cah%7CBoard%204%7Cmb%7CP%7Cmb%7C1C%7Can%7CMinor%20suit%20opening%20--%203%2B%20%21C%3B%2011-21%20HCP%3B%2012-22%20total%20points%7Cmb%7CP%7Cmb%7C1D%7Can%7COne%20over%20one%20--%204%2B%20%21D%3B%206%2B%20total%20points%7Cmb%7CP%7Cmb%7C1H%7Can%7C3%2B%20%21C%3B%204%2B%20%21H%3B%2011%2B%20HCP%3B%2012-18%20total%20points%7Cmb%7CP%7Cmb%7C1S%21%7Can%7CFourth%20suit%20forcing%20--%204%2B%20%21D%3B%203-%20%21S%3B%2012%2B%20HCP%3B%2013%2B%20total%20points%3B%20forcing%20to%203N%7Cmb%7CP%7Cmb%7C3S%7Can%7C3%2B%20%21C%3B%204%20%21H%3B%204%20%21S%3B%2014-18%20total%20points%3B%20forcing%7Cmb%7CP%7Cmb%7C3N%7Can%7C4%2B%20%21D%3B%204-%20%21H%3B%203-%20%21S%3B%2013-20%20HCP%7Cmb%7CP%7Cmb%7CP%7Cmb%7CP%7Cpc%7CC2%7Cpc%7CC6%7Cpc%7CCK%7Cpc%7CC4%7Cpc%7CC3%7Cpc%7CC5%7Cpc%7CC9%7Cpc%7CCQ%7Cpc%7CD7%7Cpc%7CD9%7Cpc%7CDQ%7Cpc%7CDK%7Cpc%7CS2%7Cpc%7CS5%7Cpc%7CSK%7Cpc%7CST%7Cpc%7CH4%7Cpc%7CHA%7Cpc%7CH7%7Cpc%7CH3%7Cpc%7CHK%7Cpc%7CD3%7Cpc%7CH5%7Cpc%7CH8%7Cpc%7CC7%7Cpc%7CCJ%7Cpc%7CCA%7Cpc%7CH6%7Cpc%7CD8%7Cpc%7CD2%7Cpc%7CDA%7Cpc%7CD4%7Cpc%7CDJ%7Cpc%7CDT%7Cpc%7CH9%7Cpc%7CS6%7Cpc%7CS7%7Cpc%7CS3%7Cpc%7CS9%7Cpc%7CS4%7Cpc%7CSA%7Cpc%7CHJ%7Cpc%7CD5%7Cpc%7CS8%7Cpc%7CHQ%7Cpc%7CHT%7Cpc%7CD6%7Cpc%7CCT%7Cpc%7CSJ%7Cpc%7CH2%7Cpc%7CC8%7Cpc%7CSQ%7C

 

So why exactly a low club? I think there is no human alive that would lead a low club in this auction,

for exactly what happened.

[johnu]

If you check with GIB's double dummy analysis, you'll see that the low club lead didn't cost any tricks.

[pescetom]

If you check with GIB's double dummy analysis, you'll see that the low club lead didn't cost any tricks.

But the club continuation (instead of switch to diamonds) did.

[goffster]

If you check with GIB's double dummy analysis, you'll see that the low club lead didn't cost any tricks.

 

Yes I know I could overcome any lead double dummy.

However, the lead was impossible for its GIB partner to decipher with

any certainty.

 

Some things are simply so easy, why tinker? If I have JT9x, always lead the jack.

[johnu]

But the club continuation (instead of switch to diamonds) did.

You could say that about a good percentage of GIB's defense over many hands. TBH, many of GIB's leads are very "mysterious" which give partner no clue about what to continue.