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Four circles of which two could form a doctrinaire puzzle despite a fivefold rotation.
Mizar is a 2nd magnitude star in the handle of the Big Dipper asterism in the constellation of Ursa Major. It forms a well-known naked eye double star with the fainter star Alcor, and is itself a quadruple star system. The whole system lies about 83 light-years away from the Sun.
The traditional name Mizar derives from the Arabic ?????? mi?zar meaning 'apron; wrapper, covering, cover'.
There is also a legend that supposedly in ancient Egypt the elite troops of Pharaoh recruited young men who could distinguish these stars. This was proof that the vision was sharp enough. In versions of the legend are Greek archers or Indian hunters. There is no evidence of the reality of these facts. In addition, Mizar and Alcor are distinguishable as individual stars, even with moderate visual acuity.
The puzzle has four circles. One has fourfold rotation, one fivefold. The other two have irregular cuts. The first two would form a doctrinaire puzzle as the cuts are shallow enough. With the other two the result is a jumbling puzzle.
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