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Daily Sudoku Answer 



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Feb 04 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s126268



Reasoning 



R3C4 is the only square in row 3 that can be <1>

R3C5 is the only square in row 3 that can be <6>

R8C8 is the only square in row 8 that can be <1>

R9C5 is the only square in row 9 that can be <7>

R9C3 is the only square in row 9 that can be <8>

R9C1 is the only square in row 9 that can be <4>

R8C2 can only be <2>

R2C2 can only be <8>

R3C3 is the only square in row 3 that can be <4>

R8C6 is the only square in row 8 that can be <4>

R1C3 is the only square in column 3 that can be <9>

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

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

R7C7 is the only square in column 7 that can be <9>

Squares R7C1 and R7C3 in row 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <15>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R7C4 - removing <5> from <2358> leaving <238>

R7C5 - removing <5> from <2358> leaving <238>

R7C6 - removing <5> from <258> leaving <28>

Squares R1C1 and R3C1 in column 1 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 column.

R5C1 - removing <2> from <125> leaving <15>

Squares R1C9 and R2C8 in block 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <57>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R1C7 - removing <5> from <258> leaving <28>

R3C9 - removing <7> from <37> leaving <3>

R9C9 can only be <5>

R9C7 can only be <3>

R1C9 can only be <7>

R1C1 can only be <2>

R2C8 can only be <5>

R1C7 can only be <8>

R3C1 can only be <7>

R1C5 can only be <5>

R3C7 can only be <2>

R3C6 can only be <8>

R8C5 can only be <9>

R7C6 can only be <2>

R6C6 can only be <5>

R8C4 can only be <5>

R2C5 can only be <2>

R2C4 can only be <9>

R6C7 can only be <6>

R4C6 can only be <9>

R6C2 can only be <3>

R2C6 can only be <7>

R4C4 can only be <3>

R4C8 can only be <7>

R7C4 can only be <8>

R5C5 can only be <8>

R4C3 can only be <5>

R5C8 can only be <3>

R7C5 can only be <3>

R6C4 can only be <2>

R5C2 can only be <4>

R6C8 can only be <8>

R6C3 can only be <7>

R4C7 can only be <4>

R7C3 can only be <1>

R5C1 can only be <1>

R4C2 can only be <6>

R5C7 can only be <5>

R5C3 can only be <2>

R7C1 can only be <5>



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