GIB hands player 2 tricks

[svengolly]

I was kibitzing the last two rounds of a robot ACBL IMP tournament and I watched GIB literally hand a player two tricks at the end after the player had butchered the hand. Do the step-by-step play and watch as E overtakes W Q of diamonds (making declarer's J good) returns a low diamond and W refuses to ruff.

 

[hv=lin=st||pn|xxxxx,~~M56876,~~M56874,~~M56875|md|1SQ984HQ7DA7CAKT53,SJ653HK53DQ8C9764,SAKT72HAJ2DJT2C82,SHT9864DK96543CQJ|sv|o|rh||ah|Board%2011|mb|1C|an|Minor%20suit%20opening%20--%203+%20!C;%2011-21%20HCP;%2012-22%20total%20points|mb|P|mb|1S|an|One%20over%20one%20--%204+%20!S;%206+%20total%20points%20|mb|P|mb|2S|an|Simple%20raise%20--%203+%20!C;%204%20!S;%2011+%20HCP;%2012-15%20total%20points|mb|P|mb|4S|an|4+%20!S;%2012+%20HCP;%2013-18%20total%20points%20|mb|P|mb|P|mb|P|pc|CQ|pc|CK|pc|C4|pc|C2|pc|S4|pc|S6|pc|SK|pc|D6|pc|S2|pc|H4|pc|SQ|pc|S5|pc|CA|pc|C9|pc|C8|pc|CJ|pc|DA|pc|D8|pc|D2|pc|D9|pc|H7|pc|H3|pc|HA|pc|H9|pc|H2|pc|HT|pc|HQ|pc|HK|pc|DQ|pc|DT|pc|DK|pc|D7|pc|D3|pc|C3|pc|H5|pc|DJ|pc|HJ|pc|H8|pc|S8|pc|SJ|pc|C7|pc|ST|pc|D4|pc|C5|pc|SA|pc|D5|pc|S9|pc|S3|pc|S7|pc|H6|pc|CT|pc|C6|]400|300|[/color]comments[/hv]

[nige1]

[hv=lin=st||pn|xxxxx,~~M56876,~~M56874,~~M56875|md|1SQ984HQ7DA7CAKT53,SJ653HK53DQ8C9764,SAKT72HAJ2DJT2C82,SHT9864DK96543CQJ|sv|o|rh||ah|Board%2011|mb|1C|an|Minor%20suit%20opening%20--%203+%20!C;%2011-21%20HCP;%2012-22%20total%20points|mb|P|mb|1S|an|One%20over%20one%20--%204+%20!S;%206+%20total%20points%20|mb|P|mb|2S|an|Simple%20raise%20--%203+%20!C;%204%20!S;%2011+%20HCP;%2012-15%20total%20points|mb|P|mb|4S|an|4+%20!S;%2012+%20HCP;%2013-18%20total%20points%20|mb|P|mb|P|mb|P|pc|CQ|pc|CK|pc|C4|pc|C2|pc|S4|pc|S6|pc|SK|pc|D6|pc|S2|pc|H4|pc|SQ|pc|S5|pc|CA|pc|C9|pc|C8|pc|CJ|pc|DA|pc|D8|pc|D2|pc|D9|pc|H7|pc|H3|pc|HA|pc|H9|pc|H2|pc|HT|pc|HQ|pc|HK|pc|DQ|pc|DT|pc|DK|pc|D7|pc|D3|pc|C3|pc|H5|pc|DJ|pc|HJ|pc|H8|pc|S8|pc|SJ|pc|C7|pc|ST|pc|D4|pc|C5|pc|SA|pc|D5|pc|S9|pc|S3|pc|S7|pc|H6|pc|CT|pc|C6|]400|300| Svengolly 'I was kibitzing the last two rounds of a robot ACBL IMP tournament and I watched GIB literally hand a player two tricks at the end after the player had butchered the hand. Do the step-by-step play and watch as E overtakes W Q of diamonds (making declarer's J good) returns a low diamond and W refuses to ruff.'

+++++++++++++++++++++++++

South can bid and make a small slam in ♠, so M56876 and M56875 feel hurt by Svengolly's criticism of their defence. South played badly but when he exits in ♥s he can still make 10 tricks, no matter how EW defend. East overtaking ♦Q doesn't lose a trick and West gets his trump trick, now or later[/hv]

[smerriman]

svengolly, I'm not following your post at all. You said to follow the step-by-step play; it clearly shows that playing a low diamond on the queen allows declarer to make 11 tricks, while overtaking is correct and holds it to 10. On the next trick, a low diamond lead is best, so East got that right, and it makes no difference whether West ruffs or not; both result in 10 tricks.

 

So where is the error?