Doc's EXTREME Daily Sudoku
12 December 2021     
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Hidden rectangle Empty rectangle (hinge)
Finned X wing Empty rectangle (hinge)
Finned X wing Discontinuous Nice Loop
Finned X wing Finned Swordfish
Discontinuous Nice Loop Grouped discontinuous nice loop
Unique side W wing
Hidden rectangle Empty rectangle (hinge)
XYZ Wing Colors
Finned X wing Finned Swordfish
W wing Hidden rectangle
Empty rectangle (hinge) XYZ Wing
Colors Finned X wing
Finned Swordfish Hidden rectangle
XYZ Wing Discontinuous Nice Loop
X wing Two String Kite
Empty rectangle (hinge) Turbot fish
Swordfish Colors
Finned X wing Finned Swordfish
Finned X wing Finned Swordfish
Finned Swordfish A.I.C
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