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Daily Sudoku Answer 



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Jun 28 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s083881



Reasoning 



R3C4 is the only square in row 3 that can be <5>

R3C7 is the only square in row 3 that can be <9>

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

R4C2 is the only square in row 4 that can be <9>

R5C8 is the only square in row 5 that can be <1>

R6C8 is the only square in row 6 that can be <9>

R7C6 is the only square in row 7 that can be <6>

R1C2 is the only square in row 1 that can be <6>

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

R9C3 is the only square in row 9 that can be <9>

Squares R5C1 and R5C2 in row 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <58>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R5C3 - removing <8> from <268> leaving <26>

R5C5 - removing <5> from <23456> leaving <2346>

Squares R1C6, R2C6 and R4C6 in column 6 form a simple naked triplet. These 3 squares all contain the 3 possibilities <248>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R6C6 - removing <2> from <125> leaving <15>

R8C6 - removing <24> from <1245> leaving <15>

Squares R5C1 and R5C2 in block 4 form a simple naked pair. These 2 squares both contain the 2 possibilities <58>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R4C1 - removing <8> from <78> leaving <7>

R6C9 is the only square in row 6 that can be <7>

Intersection of row 1 with block 3. The value <7> only appears in one or more of squares R1C7, R1C8 and R1C9 of row 1. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.

R2C8 - removing <7> from <23478> leaving <2348>

Intersection of column 1 with block 7. The value <4> only appears in one or more of squares R7C1, R8C1 and R9C1 of column 1. These squares are the ones that intersect with block 7. Thus, the other (non-intersecting) squares of block 7 cannot contain this value.

R7C3 - removing <4> from <47> leaving <7>

R2C2 is the only square in row 2 that can be <7>

R2C8 is the only square in row 2 that can be <3>

R7C8 can only be <4>

R7C1 can only be <5>

R7C7 can only be <3>

R5C1 can only be <8>

R5C2 can only be <5>

R9C1 can only be <4>

R3C2 is the only square in row 3 that can be <3>

R4C5 is the only square in row 4 that can be <3>

R5C9 is the only square in row 5 that can be <3>

R9C5 is the only square in row 9 that can be <5>

R8C6 can only be <1>

R8C2 can only be <8>

R6C6 can only be <5>

R9C4 can only be <2>

R9C9 can only be <8>

R8C4 can only be <4>

R9C2 can only be <1>

R9C8 can only be <7>

R3C9 can only be <4>

R3C3 can only be <8>

R1C9 can only be <2>

R8C5 can only be <7>

R4C4 can only be <8>

R8C8 can only be <2>

R8C7 can only be <5>

R1C8 can only be <8>

R1C6 can only be <4>

R1C7 can only be <7>

R2C3 can only be <4>

R2C4 can only be <6>

R4C6 can only be <2>

R2C5 can only be <2>

R6C4 can only be <1>

R2C6 can only be <8>

R6C5 can only be <6>

R4C7 can only be <4>

R5C7 can only be <2>

R5C3 can only be <6>

R6C3 can only be <2>

R5C5 can only be <4>



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