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Daily Sudoku Answer 



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Sep 29 - Very Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s007482



Reasoning 



R4C5 can only be <7>

R4C9 can only be <3>

R6C1 can only be <3>

R8C3 can only be <8>

R4C1 can only be <2>

R1C5 is the only square in row 1 that can be <6>

R5C4 is the only square in row 5 that can be <3>

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

R9C6 is the only square in column 6 that can be <8>

R1C6 is the only square in column 6 that can be <9>

R2C3 is the only square in row 2 that can be <9>

Squares R3C6 and R3C8 in row 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <24>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R3C2 - removing <24> from <1247> leaving <17>

R3C4 - removing <4> from <147> leaving <17>

Squares R5C5 and R6C5 in column 5 form a simple naked pair. These 2 squares both contain the 2 possibilities <48>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C5 - removing <4> from <24> leaving <2>

R9C5 - removing <4> from <1249> leaving <129>

R3C6 can only be <4>

R3C8 can only be <2>

R7C6 can only be <2>

R5C7 is the only square in row 5 that can be <2>

Squares R1C4 and R3C4 in column 4 form a simple naked pair. These 2 squares both contain the 2 possibilities <17>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R9C4 - removing <1> from <145> leaving <45>

Squares R2C2 and R2C8 in row 2 and R8C2 and R8C8 in row 8 form a Simple X-Wing pattern on possibility <5>. All other instances of this possibility in columns 2 and 8 can be removed.

R1C2 - removing <5> from <12457> leaving <1247>

R1C8 - removing <5> from <3458> leaving <348>

R7C2 - removing <5> from <56> leaving <6>

R7C8 - removing <5> from <456> leaving <46>

R9C2 - removing <5> from <23567> leaving <2367>

R9C8 - removing <5> from <34569> leaving <3469>

R7C8 can only be <4>

R7C4 can only be <5>

R2C8 can only be <5>

R9C4 can only be <4>

R1C1 is the only square in row 1 that can be <5>

R9C1 can only be <7>

R9C3 can only be <2>

R5C1 can only be <1>

R9C2 can only be <3>

R1C3 can only be <7>

R1C4 can only be <1>

R5C3 can only be <6>

R2C2 can only be <4>

R3C2 can only be <1>

R3C4 can only be <7>

R2C7 can only be <7>

R1C2 can only be <2>

R5C2 can only be <7>

R9C7 can only be <1>

R8C2 can only be <5>

R9C5 can only be <9>

R8C7 can only be <3>

R8C8 can only be <9>

R1C7 can only be <4>

R8C5 can only be <1>

R5C8 can only be <8>

R9C8 can only be <6>

R9C9 can only be <5>

R1C9 can only be <8>

R1C8 can only be <3>

R6C9 can only be <4>

R5C5 can only be <4>

R6C5 can only be <8>

R5C9 can only be <9>



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