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Daily Sudoku Answer 



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Jun 14 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s071286



Reasoning 



R1C5 can only be <4>

R4C2 can only be <1>

R6C2 can only be <3>

R9C5 can only be <8>

R5C2 can only be <6>

R3C5 can only be <7>

R3C6 can only be <8>

R5C5 can only be <5>

R7C5 can only be <9>

R3C4 can only be <1>

R5C6 can only be <7>

R5C4 can only be <8>

R7C6 can only be <3>

R2C6 can only be <9>

R8C6 can only be <2>

R2C4 can only be <3>

R5C1 can only be <2>

R5C8 can only be <1>

R5C9 can only be <3>

R4C8 is the only square in row 4 that can be <2>

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

R2C3 is the only square in column 3 that can be <7>

Squares R4C1 and R6C1 in column 1 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.

R7C1 - removing <8> from <1458> leaving <145>

R8C1 - removing <8> from <4568> leaving <456>

Intersection of column 7 with block 9. The values <37> only appears in one or more of squares R7C7, R8C7 and R9C7 of column 7. These squares are the ones that intersect with block 9. Thus, the other (non-intersecting) squares of block 9 cannot contain these values.

R7C9 - removing <7> from <1578> leaving <158>

R8C9 - removing <7> from <578> leaving <58>

Squares R4C9<78>, R6C9<578> and R8C9<58> in column 9 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <578>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C9 - removing <58> from <14568> leaving <146>

R3C9 - removing <5> from <456> leaving <46>

R7C9 - removing <58> from <158> leaving <1>

R7C3 can only be <8>

R9C7 can only be <3>

R9C3 can only be <1>

R1C3 can only be <2>

R1C7 can only be <1>

R3C3 can only be <6>

R3C9 can only be <4>

R8C3 can only be <3>

R3C1 can only be <5>

R2C9 can only be <6>

R3C7 can only be <2>

R7C1 can only be <4>

R2C2 can only be <4>

R7C4 can only be <7>

R2C1 can only be <1>

R8C1 can only be <6>

R8C2 can only be <5>

R7C7 can only be <5>

R8C4 can only be <4>

R2C7 can only be <8>

R8C9 can only be <8>

R8C7 can only be <7>

R4C9 can only be <7>

R2C8 can only be <5>

R6C8 can only be <8>

R4C1 can only be <8>

R6C9 can only be <5>

R6C1 can only be <7>



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