I was off a column in my grid, it is not A, B, C, but rather B, C, D. But I can now see what you are after.
Since there are only two conditions that would return "Fail", let's check for those, and then have anything else return "Pass", i.e.
Code:
=IF(OR(AND(B1<>"",C1<>"",D1<>""),AND(B1<>"",D1<>"")),"Fail","Pass")
Sorry i was missing last row of table:
[cod]
[TABLE="class: cms_table, width: 256"]
<tbody>[TR]
[TD="class: cms_table_xl63, width: 64"]A Blank[/TD]
[TD="class: cms_table_xl63, width: 64"]B Blank[/TD]
[TD="class: cms_table_xl63, width: 64"]C Blank[/TD]
[TD="class: cms_table_xl63, width: 64"]Result[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl63, width: 64"]Pass[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl63, width: 64"]Pass[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl63, width: 64"]Pass[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl63, width: 64"]Pass[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl63, width: 64"]Fail[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl63, width: 64"]Pass[/TD]
[/TR]
[TR]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl63, width: 64"]Fail[/TD]
[/TR]
</tbody>[/TABLE]
[TABLE="class: cms_table, width: 256"]
<tbody>[TR]
[TD="class: cms_table_xl64, width: 64"]FALSE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl64, width: 64"]TRUE[/TD]
[TD="class: cms_table_xl63, width: 64"]Fail[/TD]
[/TR]
</tbody>[/TABLE]