Study the extended sequence of numbers below and see if you can crack this week's sporting enigma code.
The puzzle is: 6, 6, 4, 7, 5, 5, 6, 2, 9, 7, 5, 5.
Any ideas? No, it's not some tedious Sudoku grid. It isn't Stephen Hawking's chassis number. It's got nothing to do with bingo either, although it is associated with a lottery of sorts.
The sequence actually details the extraordinary number of changes made by Liverpool manager Rafa Benitez in every game this season.
Following victory over Aston Villa on the opening day, the Anfield boss has chopped his personnel around so often that he is averaging more than five changes per match.
When his team is winning, this squad rotation policy can be seen as an astute management of resources. But when Liverpool struggle, Benitez is cast as a man trying to solve a Rubik's cube despite being colour blind.
Fiddling for fiddling's sake doesn't provide an answer, as another magnificent statistic demonstrates; one so startling it deserves to be served on a silver platter and accompanied by a glass of vintage red. In a total of 153 matches, Benitez has named an unchanged side only once.
On that night, Benitez confounded everyone by selecting the same 11 against Bordeaux in the Champions League, a wild and crazy notion that was rewarded with a 3-0 victory.
Afterwards the Liverpool manager justified this behaviour, saying: 'I thought if we are playing well, we have the confidence and we have time, then we can use the same team.'
Brilliantly simple. But not so brilliantly simple that he ever tried it again. And if that was his rationale back then, are we to presume that he hasn't opted for the same line up again because his side hasn't been playing well in the intervening period? Not even after beating Derby 6-0? Or was Benitez being contrary for a more selfish reason that night?
The Bordeaux game was his 99th in charge and it is more likely his selection had less to do with fitness and more to do with him wanting to dodge headlines referring to a 'century of tinkering'.
Whatever the reasoning, all this twisting and turning is obviously not doing much good right now. It's not so much a rotation policy as a tragic roundabout.