     Sudoku Solution Path   Puzzle Copyright © Kevin Stone R2C8 is the only square in row 2 that can be <2> R6C5 is the only square in row 6 that can be <6> R6C8 is the only square in row 6 that can be <1> R5C5 is the only square in row 5 that can be <1> R5C6 is the only square in row 5 that can be <2> R5C4 is the only square in row 5 that can be <9> R5C2 is the only square in row 5 that can be <5> R2C1 is the only square in row 2 that can be <5> R5C3 is the only square in row 5 that can be <8> R6C4 is the only square in row 6 that can be <7> R2C4 can only be <4> R4C8 is the only square in row 4 that can be <7> R9C8 can only be <8> R7C8 is the only square in row 7 that can be <5> R2C7 is the only square in column 7 that can be <8> Squares R7C3 and R7C7 in row 7 form a simple locked pair. These 2 squares both contain the 2 possibilities <46>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.    R7C2 - removing <46> from <2468> leaving <28> Squares R4C2 and R6C2 in column 2 form a simple locked pair. These 2 squares both contain the 2 possibilities <34>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.    R1C2 - removing <3> from <389> leaving <89>    R2C2 - removing <3> from <13679> leaving <1679>    R3C2 - removing <3> from <13679> leaving <1679>    R8C2 - removing <4> from <1246789> leaving <126789> Squares R1C1 and R1C2 in row 1 form a simple locked pair. These 2 squares both contain the 2 possibilities <89>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.    R1C8 - removing <9> from <349> leaving <34> R3C8 is the only square in column 8 that can be <9> R8C8 is the only square in column 8 that can be <6> R7C7 can only be <4> R7C3 can only be <6> R5C7 can only be <3> R5C8 can only be <4> R8C7 can only be <1> R1C8 can only be <3> R3C7 can only be <6> R9C9 can only be <7> R8C9 can only be <3> R1C9 can only be <4> R2C9 can only be <1> R2C2 is the only square in row 2 that can be <6> R3C2 is the only square in row 3 that can be <1> R9C2 can only be <9> R9C1 can only be <1> R1C2 can only be <8> R8C1 can only be <8> R1C1 can only be <9> R7C2 can only be <2> R7C5 can only be <8> R8C2 can only be <7> R4C5 can only be <3> R8C4 can only be <5> R8C3 can only be <4> R8C6 can only be <9> R4C4 can only be <8> R8C5 can only be <2> R2C6 can only be <3> R2C3 can only be <7> R6C6 can only be <4> R3C5 can only be <7> R3C3 can only be <3> R2C5 can only be <9> R4C2 can only be <4> R6C2 can only be <3> R4C6 can only be <5> [Puzzle Code = Sudoku-20200525-Hard-125515]    