Doc's EXTREME Daily Sudoku
7 April 2022     
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Naked quad Naked quad
Hidden double Discontinuous Nice Loop
Discontinuous Nice Loop A.I.C
Group AIC Discontinuous Nice Loop
Discontinuous Nice Loop Empty rectangle (hinge)
Finned X wing Discontinuous Nice Loop
Group AIC Discontinuous Nice Loop
Grouped discontinuous nice loop Group AIC
Discontinuous Nice Loop A.I.C
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