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Daily Sudoku Answer 



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May 27 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s322737



Reasoning 



R8C5 can only be <6>

R1C2 is the only square in row 1 that can be <4>

R2C8 is the only square in row 2 that can be <9>

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

Squares R9C7 and R9C8 in row 9 form a simple naked pair. These 2 squares both contain the 2 possibilities <37>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R9C1 - removing <3> from <1369> leaving <169>

R9C3 - removing <3> from <1369> leaving <169>

R9C9 - removing <7> from <147> leaving <14>

Squares R3C4 and R6C4 in column 4 form a simple naked pair. These 2 squares both contain the 2 possibilities <37>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R4C4 - removing <7> from <679> leaving <69>

R5C4 - removing <3> from <1369> leaving <169>

Squares R9C7 and R9C8 in block 9 form a simple naked pair. These 2 squares both contain the 2 possibilities <37>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R8C8 - removing <3> from <38> leaving <8>

R5C8 can only be <2>

Intersection of row 2 with block 1. The value <3> only appears in one or more of squares R2C1, R2C2 and R2C3 of row 2. These squares are the ones that intersect with block 1. Thus, the other (non-intersecting) squares of block 1 cannot contain this value.

R1C1 - removing <3> from <13678> leaving <1678>

R1C3 - removing <3> from <1368> leaving <168>

R3C1 - removing <3> from <35678> leaving <5678>

R3C3 - removing <3> from <3568> leaving <568>

R6C3 is the only square in column 3 that can be <3>

R6C4 can only be <7>

R6C7 can only be <8>

R3C4 can only be <3>

R6C6 can only be <4>

R5C9 can only be <6>

R4C7 can only be <7>

R6C5 can only be <5>

R7C6 can only be <1>

R7C4 can only be <9>

R9C7 can only be <3>

R4C4 can only be <6>

R5C4 can only be <1>

R9C5 can only be <4>

R9C9 can only be <1>

R9C8 can only be <7>

R1C8 can only be <3>

R8C9 can only be <5>

R8C2 can only be <3>

R7C7 can only be <2>

R7C9 can only be <4>

R1C7 can only be <6>

R8C1 can only be <1>

R3C7 can only be <5>

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

R2C1 is the only square in row 2 that can be <3>

R2C2 is the only square in row 2 that can be <5>

R5C2 can only be <8>

R5C5 can only be <9>

R5C6 can only be <3>

R4C3 can only be <9>

R5C1 can only be <5>

R9C3 can only be <6>

R7C1 can only be <8>

R7C3 can only be <5>

R1C1 can only be <7>

R9C1 can only be <9>

R3C3 can only be <8>

R3C1 can only be <6>

R3C6 can only be <2>

R3C9 can only be <7>

R4C6 can only be <8>

R1C5 can only be <8>

R2C9 can only be <8>

R4C5 can only be <2>

R1C9 can only be <2>

R2C5 can only be <7>



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