Super Sixes

Super Sixes is a puzzle type that first appeared in Will Shortz's WordPlay. It was invented by Neville Fogarty, who said that it was born out of his inability to construct a proper Rows Garden puzzle. Since I find full-sized Rows Gardens to be among the more difficult types to construct, I empathize with Neville's plight, and am happy to adopt his solution to the problem.

Puzzle: 
Solution: 

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