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Daily Sudoku Answer 



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Jul 07 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s027188



Reasoning 



R1C3 can only be <6>

R3C3 can only be <4>

R5C5 can only be <2>

R7C3 can only be <2>

R2C1 can only be <5>

R9C3 can only be <1>

R2C5 can only be <9>

R2C9 is the only square in row 2 that can be <4>

R4C9 can only be <7>

R6C9 can only be <5>

R5C9 can only be <3>

R4C2 is the only square in row 4 that can be <2>

R7C2 is the only square in row 7 that can be <3>

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

R1C1 is the only square in row 1 that can be <3>

R5C1 is the only square in column 1 that can be <7>

R5C2 can only be <6>

R5C8 can only be <1>

R4C8 can only be <4>

R4C1 can only be <1>

R6C8 can only be <6>

R1C9 is the only square in column 9 that can be <2>

Squares R1C6 and R3C6 in column 6 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 column.

R7C6 - removing <57> from <4567> leaving <46>

R9C6 - removing <57> from <245679> leaving <2469>

R7C5 is the only square in block 8 that can be <5>

Squares R7C6 and R7C7 in row 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <46>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R7C4 - removing <6> from <678> leaving <78>

Squares R1C7 and R3C7 in column 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 column.

R9C7 - removing <5> from <456> leaving <46>

R9C8 is the only square in row 9 that can be <5>

R9C4 is the only square in row 9 that can be <7>

R7C4 can only be <8>

R7C8 can only be <7>

R1C4 can only be <1>

R8C5 can only be <1>

R8C4 can only be <6>

R3C5 can only be <8>

R1C7 can only be <5>

R1C6 can only be <7>

R3C7 can only be <1>

R3C8 can only be <9>

R3C2 can only be <7>

R1C8 can only be <8>

R2C4 can only be <2>

R7C6 can only be <4>

R1C2 can only be <9>

R3C6 can only be <5>

R2C6 can only be <6>

R7C7 can only be <6>

R8C6 can only be <9>

R9C7 can only be <4>

R8C9 can only be <8>

R9C6 can only be <2>

R8C1 can only be <4>

R9C9 can only be <9>

R9C2 can only be <8>

R6C1 can only be <8>

R9C1 can only be <6>

R6C2 can only be <4>



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