[OK] Privacy Policy  -  Terms & Conditions  -  See DetailsThis website uses cookies. By using this website you are accepting the use of cookies.For more information please view the privacy policy.     Sudoku Solution Path   Copyright © Kevin Stone R4C2 is the only square in row 4 that can be <5> R4C1 is the only square in row 4 that can be <7> R7C8 is the only square in row 7 that can be <7> R7C2 is the only square in row 7 that can be <8> R8C2 can only be <2> R8C3 is the only square in row 8 that can be <5> R9C5 is the only square in row 9 that can be <5> R5C1 is the only square in column 1 that can be <2> R8C8 is the only square in column 8 that can be <8> R8C4 can only be <6> R8C6 can only be <4> R8C7 can only be <9> Squares R5C4<17>, R5C6<167> and R5C7<16> in row 5 form a comprehensive locked triplet. These 3 squares can only contain the 3 possibilities <167>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.    R5C3 - removing <1> from <139> leaving <39>    R5C9 - removing <6> from <369> leaving <39> Intersection of block 4 with row 6. The value <1> only appears in one or more of squares R6C1, R6C2 and R6C3 of block 4. These squares are the ones that intersect with row 6. Thus, the other (non-intersecting) squares of row 6 cannot contain this value.    R6C5 - removing <1> from <136> leaving <36>    R6C8 - removing <1> from <149> leaving <49> Squares R1C1 and R1C9 in row 1 and R9C1 and R9C9 in row 9 form a Simple X-Wing pattern on possibility <4>. All other instances of this possibility in columns 1 and 9 can be removed.    R6C9 - removing <4> from <3469> leaving <369> R6C8 is the only square in row 6 that can be <4> Intersection of column 8 with block 3. The value <9> only appears in one or more of squares R1C8, R2C8 and R3C8 of column 8. These squares are the ones that intersect with block 3. Thus, the other (non-intersecting) squares of block 3 cannot contain this value.    R1C9 - removing <9> from <469> leaving <46> Squares R6C2 (XY), R3C2 (XZ) and R6C5 (YZ) form an XY-Wing pattern on <6>. All squares that are buddies of both the XZ and YZ squares cannot be <6>.    R3C5 - removing <6> from <1269> leaving <129> Squares R1C5 and R6C5 in column 5 and R1C9 and R6C9 in column 9 form a Simple X-Wing pattern on possibility <6>. All other instances of this possibility in rows 1 and 6 can be removed.    R1C6 - removing <6> from <168> leaving <18> Squares R1C4 and R1C6 in row 1 form a simple locked pair. These 2 squares both contain the 2 possibilities <18>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.    R1C1 - removing <1> from <149> leaving <49>    R1C5 - removing <1> from <169> leaving <69> Squares R1C6 and R9C6 in column 6 form a simple locked pair. These 2 squares both contain the 2 possibilities <18>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.    R2C6 - removing <1> from <167> leaving <67>    R5C6 - removing <1> from <167> leaving <67> Squares R1C4 and R1C6 in block 2 form a simple locked pair. These 2 squares both contain the 2 possibilities <18>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.    R2C4 - removing <1> from <127> leaving <27>    R3C5 - removing <1> from <129> leaving <29> Squares R1C4, R1C6, R9C4 and R9C6 form a Type-1 Unique Rectangle on <18>.    R9C4 - removing <18> from <128> leaving <2> R9C9 can only be <4> R2C4 can only be <7> R7C5 can only be <1> R9C1 can only be <1> R1C9 can only be <6> R7C7 can only be <2> R1C5 can only be <9> R2C6 can only be <6> R5C4 can only be <1> R5C6 can only be <7> R5C7 can only be <6> R1C4 can only be <8> R4C5 can only be <3> R7C3 can only be <4> R9C6 can only be <8> R2C7 can only be <1> R6C1 can only be <9> R1C6 can only be <1> R1C1 can only be <4> R3C5 can only be <2> R2C2 can only be <3> R3C7 can only be <4> R3C8 can only be <9> R3C3 can only be <1> R2C8 can only be <2> R4C9 can only be <2> R6C5 can only be <6> R4C8 can only be <1> R6C9 can only be <3> R5C3 can only be <3> R6C2 can only be <1> R5C9 can only be <9> R2C3 can only be <9> R3C2 can only be <6> BrainBashers™ is a trademark. This website uses cookies. By using this website you are accepting the use of cookies. For more information please view the privacy policy. By using this website you are also agreeing to the terms and conditions.   