skip to main content




Daily Sudoku Answer 



BrainBashers doesn't show adverts, and I continue to depend on the ongoing support from everyone who enjoys the site.

Please consider supporting BrainBashers [hide]
Loading

X

Loading

Aug 19 - Super Hard
Puzzle Copyright © Kevin Stone

Share link – www.brainbashers.com/s058774



Reasoning 



R8C5 can only be <2>

R5C5 can only be <7>

R5C2 can only be <5>

R5C8 can only be <8>

R4C9 can only be <7>

R6C9 can only be <2>

R5C4 can only be <2>

R4C1 can only be <1>

R5C6 can only be <9>

R6C4 can only be <1>

R6C1 can only be <7>

R6C5 can only be <6>

R6C6 can only be <3>

R1C4 can only be <4>

R9C4 can only be <8>

R4C5 can only be <4>

R4C6 can only be <8>

R9C6 can only be <1>

R1C6 can only be <2>

R4C4 can only be <5>

R2C5 can only be <1>

R1C7 is the only square in row 1 that can be <1>

Squares R8C2 and R8C8 in row 8 form a simple naked pair. These 2 squares both contain the 2 possibilities <79>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R8C1 - removing <9> from <589> leaving <58>

R8C9 - removing <9> from <589> leaving <58>

Squares R7C7<28>, R8C9<58> and R9C7<25> in block 9 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <258>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R7C9 - removing <8> from <489> leaving <49>

R9C9 - removing <5> from <345> leaving <34>

Squares R3C3 and R3C9 in row 3 and R7C3 and R7C9 in row 7 form a Simple X-Wing pattern on possibility <4>. All other instances of this possibility in columns 3 and 9 can be removed.

R2C9 - removing <4> from <3468> leaving <368>

R9C3 - removing <4> from <457> leaving <57>

R9C9 - removing <4> from <34> leaving <3>

Squares R1C3 and R9C3 in column 3 form a simple naked pair. These 2 squares both contain the 2 possibilities <57>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R3C3 - removing <5> from <458> leaving <48>

Squares R2C1 and R2C9 in row 2 and R8C1 and R8C9 in row 8 form a Simple X-Wing pattern on possibility <8>. All other instances of this possibility in columns 1 and 9 can be removed.

R3C1 - removing <8> from <589> leaving <59>

R3C9 - removing <8> from <4589> leaving <459>

R7C1 - removing <8> from <289> leaving <29>

Squares R3C1 and R3C9 in row 3 and R7C1 and R7C9 in row 7 form a Simple X-Wing pattern on possibility <9>. All other instances of this possibility in columns 1 and 9 can be removed.

R1C1 - removing <9> from <3569> leaving <356>

R1C9 - removing <9> from <569> leaving <56>

Squares R1C9<56>, R2C9<68> and R3C7<58> in block 3 form a comprehensive naked triplet. These 3 squares can only contain the 3 possibilities <568>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R3C9 - removing <5> from <459> leaving <49>

Squares R2C2 (XY), R3C3 (XZ) and R2C9 (YZ) form an XY-Wing pattern on <8>. All squares that are buddies of both the XZ and YZ squares cannot be <8>.

R2C1 - removing <8> from <368> leaving <36>

R3C7 - removing <8> from <58> leaving <5>

R3C1 can only be <9>

R9C7 can only be <2>

R1C9 can only be <6>

R7C7 can only be <8>

R2C9 can only be <8>

R8C9 can only be <5>

R3C9 can only be <4>

R7C1 can only be <2>

R1C2 can only be <7>

R3C3 can only be <8>

R7C9 can only be <9>

R2C8 can only be <3>

R7C3 can only be <4>

R8C8 can only be <7>

R8C2 can only be <9>

R9C8 can only be <4>

R8C1 can only be <8>

R1C3 can only be <5>

R9C2 can only be <6>

R1C1 can only be <3>

R9C3 can only be <7>

R2C1 can only be <6>

R1C8 can only be <9>

R9C1 can only be <5>

R2C2 can only be <4>



Today's Sudoku Puzzles 



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

Note: BrainBashers has a Dark Mode setting.