Doc's EXTREME Daily Sudoku
20 September 2023
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Empty rectangle (hinge)
Empty rectangle (hinge)
Finned X wing
Finned X wing
Finned X wing
Finned Swordfish
Discontinuous Nice Loop
Discontinuous Nice Loop
Nice Loop
Discontinuous Nice Loop
Brute Force
XY Wing
Finned X wing
Finned Swordfish
XY Wing
Grouped discontinuous nice loop
Discontinuous Nice Loop
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