skip to main content




Daily Sudoku Answer 



Loading

X

Loading

Oct 20 - Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s313633



Reasoning 



R4C2 is the only square in row 4 that can be <1>

R4C8 is the only square in row 4 that can be <3>

R5C9 can only be <9>

R3C9 can only be <2>

R3C5 can only be <8>

R1C9 can only be <4>

R8C9 can only be <3>

R8C2 can only be <9>

R7C9 can only be <7>

R6C2 is the only square in row 6 that can be <4>

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

R6C8 is the only square in row 6 that can be <7>

R6C6 is the only square in row 6 that can be <9>

R8C7 is the only square in row 8 that can be <4>

Squares R2C7 and R2C8 in row 2 form a simple naked pair. These 2 squares both contain the 2 possibilities <56>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R2C2 - removing <56> from <3567> leaving <37>

R2C3 - removing <6> from <236> leaving <23>

R2C6 - removing <56> from <23567> leaving <237>

Squares R4C7 and R5C7 in column 7 form a simple naked pair. These 2 squares both contain the 2 possibilities <68>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R2C7 - removing <6> from <56> leaving <5>

R7C7 - removing <8> from <189> leaving <19>

R9C7 - removing <8> from <1589> leaving <159>

R2C8 can only be <6>

Squares R1C8 and R3C8 in column 8 form a simple naked pair. These 2 squares both contain the 2 possibilities <19>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R7C8 - removing <19> from <1289> leaving <28>

R8C8 - removing <1> from <125> leaving <25>

R9C8 - removing <19> from <12589> leaving <258>

Intersection of column 1 with block 7. The value <2> 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.

R8C3 - removing <2> from <12> leaving <1>

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

R3C8 can only be <9>

R1C3 is the only square in row 1 that can be <9>

R3C1 is the only square in row 3 that can be <1>

R7C7 is the only square in row 7 that can be <1>

R9C7 can only be <9>

R7C5 is the only square in row 7 that can be <9>

R9C4 is the only square in row 9 that can be <1>

R2C3 is the only square in column 3 that can be <2>

R3C4 is the only square in column 4 that can be <3>

R3C3 can only be <6>

R2C6 can only be <7>

R2C2 can only be <3>

R1C5 can only be <2>

R3C2 can only be <5>

R6C3 can only be <8>

R6C4 can only be <6>

R5C3 can only be <3>

R4C6 can only be <2>

R1C4 can only be <5>

R9C5 can only be <7>

R9C2 can only be <8>

R1C2 can only be <7>

R4C4 can only be <8>

R7C6 can only be <3>

R5C1 can only be <6>

R9C6 can only be <5>

R7C2 can only be <6>

R9C8 can only be <2>

R1C6 can only be <6>

R8C4 can only be <2>

R9C1 can only be <3>

R7C8 can only be <8>

R8C8 can only be <5>

R4C7 can only be <6>

R5C7 can only be <8>

R7C1 can only be <2>



Today's Sudoku Puzzles 



All daily items change at midnight GMT – set your local time zone.

Note: BrainBashers has a Dark Mode setting.