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Daily Sudoku Answer 



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Nov 17 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s034067



Reasoning 



R3C7 can only be <7>

R3C9 can only be <2>

R4C3 is the only square in row 4 that can be <2>

R7C3 can only be <7>

R8C3 can only be <6>

R1C3 can only be <8>

R2C3 can only be <4>

R6C3 can only be <5>

R3C1 can only be <9>

R3C2 can only be <6>

R8C5 is the only square in row 8 that can be <7>

R9C2 is the only square in column 2 that can be <9>

R5C2 is the only square in column 2 that can be <3>

R5C5 is the only square in column 5 that can be <5>

R5C6 is the only square in row 5 that can be <6>

R2C5 is the only square in row 2 that can be <6>

R1C8 is the only square in row 1 that can be <6>

R1C4 is the only square in row 1 that can be <3>

R5C8 is the only square in column 8 that can be <7>

Squares R7C1 and R7C8 in row 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <23>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R7C5 - removing <2> from <128> leaving <18>

R7C6 - removing <3> from <1389> leaving <189>

R7C9 - removing <3> from <1389> leaving <189>

Squares R7C1 and R8C1 in column 1 form a simple naked pair. These 2 squares both contain the 2 possibilities <23>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C1 - removing <2> from <127> leaving <17>

Intersection of column 6 with block 8. The values <38> only appears in one or more of squares R7C6, R8C6 and R9C6 of column 6. These squares are the ones that intersect with block 8. Thus, the other (non-intersecting) squares of block 8 cannot contain these values.

R7C5 - removing <8> from <18> leaving <1>

R8C4 - removing <8> from <12489> leaving <1249>

R1C5 can only be <2>

R1C2 can only be <1>

R9C5 can only be <4>

R9C6 can only be <3>

R3C5 can only be <8>

R9C7 can only be <5>

R9C8 can only be <2>

R2C7 can only be <3>

R7C8 can only be <3>

R6C2 can only be <7>

R2C1 can only be <7>

R2C2 can only be <2>

R2C9 can only be <5>

R3C4 can only be <4>

R7C1 can only be <2>

R8C8 can only be <4>

R4C8 can only be <5>

R8C1 can only be <3>

R4C9 is the only square in row 4 that can be <3>

R5C1 is the only square in row 5 that can be <4>

R6C1 can only be <1>

R6C4 can only be <8>

R6C7 can only be <4>

R5C4 can only be <1>

R4C7 can only be <1>

R4C6 can only be <4>

R8C7 can only be <8>

R5C9 can only be <8>

R2C4 can only be <9>

R7C9 can only be <9>

R7C6 can only be <8>

R8C9 can only be <1>

R8C6 can only be <9>

R2C6 can only be <1>

R8C4 can only be <2>



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