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Daily Sudoku Answer 



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Feb 11 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s255445



Reasoning 



R3C6 is the only square in row 3 that can be <6>

R1C3 is the only square in row 1 that can be <6>

R5C8 is the only square in row 5 that can be <6>

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

R1C7 is the only square in row 1 that can be <9>

R6C1 is the only square in row 6 that can be <2>

R3C2 is the only square in row 3 that can be <2>

R8C5 is the only square in row 8 that can be <2>

R8C3 is the only square in row 8 that can be <3>

R6C3 can only be <1>

R4C3 can only be <5>

R2C3 can only be <4>

R9C3 can only be <9>

R3C9 is the only square in row 3 that can be <4>

R1C5 is the only square in row 1 that can be <4>

R6C9 is the only square in row 6 that can be <3>

R4C1 is the only square in row 4 that can be <3>

R5C4 is the only square in row 5 that can be <3>

R8C8 is the only square in row 8 that can be <9>

R7C6 is the only square in row 7 that can be <9>

R9C9 is the only square in row 9 that can be <2>

R9C5 is the only square in row 9 that can be <6>

R9C7 is the only square in column 7 that can be <4>

R2C8 is the only square in column 8 that can be <8>

Squares R5C1 and R5C2 in row 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <48>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R5C5 - removing <8> from <158> leaving <15>

R5C6 - removing <8> from <158> leaving <15>

Squares R2C2 and R8C2 in column 2 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 column.

R7C2 - removing <15> from <1458> leaving <48>

Squares R5C5 and R5C6 in block 5 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 block.

R4C5 - removing <1> from <178> leaving <78>

Squares R4C5 and R6C5 in column 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <78>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C5 - removing <7> from <157> leaving <15>

R2C7 is the only square in row 2 that can be <7>

R6C7 can only be <8>

R3C8 can only be <1>

R7C8 can only be <7>

R1C9 can only be <5>

R6C5 can only be <7>

R4C7 can only be <1>

R7C9 can only be <1>

R4C9 can only be <7>

R8C7 can only be <5>

R4C5 can only be <8>

R8C2 can only be <1>

R2C2 can only be <5>

R2C5 can only be <1>

R3C1 can only be <7>

R5C5 can only be <5>

R1C6 can only be <8>

R3C4 can only be <5>

R1C1 can only be <1>

R7C4 can only be <8>

R5C6 can only be <1>

R7C2 can only be <4>

R1C4 can only be <7>

R9C4 can only be <1>

R9C6 can only be <5>

R9C1 can only be <8>

R7C1 can only be <5>

R5C2 can only be <8>

R5C1 can only be <4>



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