[ via selecting G18:G22 (with G18 active), and using the formula:
=SUMPRODUCT(COUNTIF(H18:V18,$G$2:$K$16))=15 ]

Oops, just realized that the CF formula above,
following normal COUNTIF syntax should actually be written as:
=SUMPRODUCT(COUNTIF($G$2:$K$16,H18:V18))=15

But in this instance, think the earlier one works just as well
(Thanks to symmetry!)
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Rgds
Max
xl 97
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Singapore, GMT+8
xdemechanik
http://savefile.com/projects/236895
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