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Daily Sudoku Answer 



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Jun 17 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s013851



Reasoning 



R1C6 can only be <5>

R6C5 can only be <1>

R7C4 can only be <8>

R9C6 can only be <7>

R4C5 can only be <4>

R5C5 can only be <7>

R1C4 can only be <4>

R3C4 can only be <7>

R9C4 can only be <1>

R9C5 can only be <3>

R9C2 can only be <4>

R9C8 can only be <9>

R1C5 is the only square in row 1 that can be <9>

R2C1 is the only square in row 2 that can be <4>

R2C3 is the only square in row 2 that can be <7>

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

R2C7 is the only square in row 2 that can be <9>

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

R7C7 is the only square in row 7 that can be <4>

R7C3 is the only square in row 7 that can be <9>

R8C9 is the only square in row 8 that can be <7>

Intersection of column 2 with block 7. The value <2> only appears in one or more of squares R7C2, R8C2 and R9C2 of column 2. These squares are the ones that intersect with block 7. Thus, the other (non-intersecting) squares of block 7 cannot contain this value.

R8C3 - removing <2> from <235> leaving <35>

Intersection of column 8 with block 3. The value <2> only appears in one or more of squares R1C8, R2C8 and R3C8 of column 8. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.

R3C7 - removing <2> from <1238> leaving <138>

Intersection of column 9 with block 6. The value <3> only appears in one or more of squares R4C9, R5C9 and R6C9 of column 9. These squares are the ones that intersect with block 6. Thus, the other (non-intersecting) squares of block 6 cannot contain this value.

R4C7 - removing <3> from <123> leaving <12>

R6C7 - removing <3> from <238> leaving <28>

Squares R1C8<38>, R7C8<36> and R8C8<368> in column 8 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <368>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C8 - removing <8> from <258> leaving <25>

R3C8 - removing <38> from <12358> leaving <125>

R5C8 - removing <8> from <158> leaving <15>

R5C2 is the only square in row 5 that can be <8>

R1C2 can only be <3>

R1C8 can only be <8>

R2C9 can only be <5>

R2C2 can only be <6>

R2C8 can only be <2>

R4C9 can only be <3>

R6C9 can only be <8>

R6C7 can only be <2>

R3C2 can only be <5>

R2C5 can only be <8>

R3C8 can only be <1>

R3C3 can only be <8>

R7C2 can only be <2>

R3C7 can only be <3>

R5C8 can only be <5>

R5C1 can only be <1>

R6C3 can only be <3>

R4C7 can only be <1>

R7C6 can only be <6>

R8C2 can only be <1>

R7C5 can only be <5>

R7C8 can only be <3>

R3C6 can only be <2>

R8C8 can only be <6>

R8C7 can only be <8>

R3C5 can only be <6>

R4C1 can only be <5>

R8C3 can only be <5>

R8C5 can only be <2>

R8C1 can only be <3>

R4C3 can only be <2>



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