"Do Until Matches Criteria"-Loop Thru Randomised Range, With Counter

Hi.
I need to create a macro that will firstly create a random (=RAND ()) range of numbers (e.g. between 0-20), then repeatedly randomise these numbers (F9) until, let's say, 5 of them match 5 other numbers (within the same range) specified in a separate row (i.e. "do until" loop, until criteria are met), while at the same time counting the number of times it repeats the loop until it matches the criteria. Upon matching the criteria, it must show the resultant number of loops (F9's) in a separate cell. It must then repeat the procedure for subsequent rows until it reaches an empty row of cells.
Any ideas greatly appreciated.