Robot sabotage

[tompeer]

Having missed a chance for 4 down we were at least on course for 2 down...until the robot threw the j♣ at trick 7...why on earth would it do this?

 

 

http://www.bridgebase.com/tools/handviewer.html?sn=tompeer&s=SAK94HQ63DKJT72C4&wn=Robot&w=S762HA987DACKQ973&nn=Robot&n=ST5HKJ42DQ65CAJ62&en=Robot&e=SQJ83HT5D9843CT85&d=s&v=b&b=7&a=1D(Minor%20suit%20opening%20--%203+%20%21D%3B%2011-21%20HCP%3B)D(Takeout%20double%20--%203-5%20%21C%3B%202-%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012+%20total%20points)R(4-%20%21D%3B%2010+%20HCP%3B%20opponents%20cannot%20play%20undoubled%20below%202N)1S(Length%20--%204+%20%21S)D(Penalty%20--%203+%20%21D%3B%204+%20%21S%3B%2011-21%20HCP%3B%2012-2)PPP&p=C4CKCAC5STSQSKS6HQH7HKH5S5S3S9S2H6HAH2HTH9HJSJH3C8S4C3CJD2DAD5D3H8H4D4D7C9C6CTDTD8DJS7D6CQC2D9SADKC7DQS8

[gwnn]

[hv=http://www.bridgebase.com/tools/handviewer.html?sn=tompeer&s=SAK94HQ63DKJT72C4&wn=Robot&w=S762HA987DACKQ973&nn=Robot&n=ST5HKJ42DQ65CAJ62&en=Robot&e=SQJ83HT5D9843CT85&d=s&v=b&b=7&a=1D(Minor%20suit%20opening%20--%203+%20%21D%3B%2011-21%20HCP%3B)D(Takeout%20double%20--%203-5%20%21C%3B%202-%20%21D%3B%203-4%20%21H%3B%203-4%20%21S%3B%2012+%20total%20points)R(4-%20%21D%3B%2010+%20HCP%3B%20opponents%20cannot%20play%20undoubled%20below%202N)1S(Length%20--%204+%20%21S)D(Penalty%20--%203+%20%21D%3B%204+%20%21S%3B%2011-21%20HCP%3B%2012-2)PPP&p=C4CKCAC5STSQSKS6HQH7HKH5S5S3S9S2H6HAH2HTH9HJSJH3C8S4C3CJD2DAD5D3H8H4D4D7C9C6CTDTD8DJS7D6CQC2D9SADKC7DQS8]400|300[/hv]

[broze]

Was it a well lit table? The bot might have thought the ♠4 was the ♣4. Easy mistake to make.