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Daily Sudoku Answer 



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Dec 05 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s046534



Reasoning 



R3C1 is the only square in row 3 that can be <9>

R5C3 is the only square in row 5 that can be <4>

R5C9 is the only square in row 5 that can be <9>

R6C5 is the only square in row 6 that can be <5>

R7C8 is the only square in row 7 that can be <9>

R3C2 is the only square in column 2 that can be <6>

Squares R6C8 and R6C9 in row 6 form a simple naked pair. These 2 squares both contain the 2 possibilities <27>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R6C2 - removing <7> from <178> leaving <18>

R6C3 - removing <27> from <1278> leaving <18>

R9C3 is the only square in column 3 that can be <2>

R4C1 is the only square in column 1 that can be <2>

Squares R8C1 and R8C5 in row 8 form a simple naked pair. These 2 squares both contain the 2 possibilities <18>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R8C6 - removing <8> from <2458> leaving <245>

R8C7 - removing <1> from <125> leaving <25>

Squares R9C4 and R9C7 in row 9 form a simple naked pair. These 2 squares both contain the 2 possibilities <16>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R9C2 - removing <1> from <147> leaving <47>

R9C9 - removing <16> from <1467> leaving <47>

R7C9 is the only square in column 9 that can be <6>

R9C7 can only be <1>

R9C4 can only be <6>

R5C4 can only be <8>

R5C6 can only be <7>

R5C1 can only be <3>

R1C6 can only be <5>

R4C5 can only be <6>

R5C7 can only be <6>

R1C7 can only be <3>

R1C8 can only be <6>

R4C7 can only be <8>

R4C2 can only be <7>

R4C8 can only be <3>

R9C2 can only be <4>

R9C9 can only be <7>

R6C9 can only be <2>

R6C8 can only be <7>

R2C9 can only be <1>

R2C4 can only be <2>

R3C9 can only be <4>

R3C8 can only be <2>

R3C4 can only be <1>

R3C6 can only be <8>

R7C4 can only be <5>

R3C3 can only be <5>

R3C5 can only be <3>

R8C8 can only be <4>

R7C7 can only be <2>

R7C6 can only be <4>

R8C7 can only be <5>

R8C6 can only be <2>

R2C5 can only be <7>

R2C3 can only be <8>

R2C2 can only be <3>

R6C3 can only be <1>

R6C2 can only be <8>

R1C3 can only be <7>

R1C1 can only be <1>

R7C2 can only be <1>

R7C5 can only be <8>

R8C1 can only be <8>

R7C1 can only be <7>

R8C5 can only be <1>



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