Doc's EXTREME Daily Sudoku
25 May 2023
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X wing
Unique side
Empty rectangle (hinge)
Empty rectangle (hinge)
Turbot fish
W wing
Finned X wing
Hidden rectangle
Discontinuous Nice Loop
Grouped discontinuous nice loop
Grouped discontinuous nice loop
Discontinuous Nice Loop
Group AIC
Finned Swordfish
XY Wing
XY Wing
W wing
W wing
Swordfish
Jellyfish
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