R2C7 can only be <7>

R5C8 can only be <9>

R3C8 can only be <1>

R3C9 can only be <3>

R7C8 can only be <7>

R1C4 is the only square in row 1 that can be <1>

R6C7 is the only square in row 6 that can be <8>

R7C5 is the only square in row 7 that can be <4>

Squares R6C1 and R6C9 in row 6 form a simple locked pair. These 2 squares both contain the 2 possibilities <16>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R6C3 - removing <16> from <1367> leaving <37>

Squares R4C5 and R6C5 in column 5 form a simple locked pair. These 2 squares both contain the 2 possibilities <37>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the column.

R3C5 - removing <7> from <2789> leaving <289>

Squares R4C5 and R6C5 in block 5 form a simple locked pair. These 2 squares both contain the 2 possibilities <37>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R5C4 - removing <3> from <356> leaving <56>

Squares R5C4 and R5C6 in row 5 form a simple locked 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.

R5C3 - removing <6> from <2346> leaving <234>

R5C7 - removing <6> from <236> leaving <23>

Squares R7C4<35>, R9C4<357> and R9C6<57> in block 8 form a comprehensive locked triplet. These 3 squares can only contain the 3 possibilities <357>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the block.

R7C6 - removing <5> from <259> leaving <29>

Squares R2C3 and R2C5 in row 2, R5C3 and R5C7 in row 5 and R8C5 and R8C7 in row 8 form a Swordfish pattern on possibility <2>. All other instances of this possibility in columns 3, 5 and 7 can be removed.

R3C3 - removing <2> from <24568> leaving <4568>

R3C5 - removing <2> from <289> leaving <89>

R4C3 - removing <2> from <12367> leaving <1367>

R4C7 - removing <2> from <1236> leaving <136>

R7C7 - removing <2> from <1256> leaving <156>

Squares R3C2<48>, R3C5<89> and R3C7<49> in row 3 form a comprehensive locked triplet. These 3 squares can only contain the 3 possibilities <489>. Since each of the squares must contain one of the possibilities, they can be eliminated from the other squares in the row.

R3C3 - removing <48> from <4568> leaving <56>

R3C6 - removing <9> from <2679> leaving <267>

Squares R6C3, R6C5, R4C3 and R4C5 form a Type-1 Unique Rectangle on <37>.

R4C3 - removing <37> from <1367> leaving <16>

R4C5 is the only square in row 4 that can be <7>

R6C5 can only be <3>

R6C3 can only be <7>

R4C7 is the only square in row 4 that can be <3>

R5C7 can only be <2>

R8C7 can only be <5>

R8C3 can only be <9>

R9C7 can only be <1>

R7C7 can only be <6>

R7C9 can only be <2>

R7C6 can only be <9>

R8C5 can only be <2>

R2C5 can only be <8>

R2C3 can only be <2>

R3C5 can only be <9>

R3C7 can only be <4>

R1C6 can only be <6>

R3C2 can only be <8>

R1C7 can only be <9>

R1C3 can only be <4>

R5C6 can only be <5>

R3C4 can only be <7>

R7C2 can only be <3>

R3C6 can only be <2>

R5C4 can only be <6>

R9C6 can only be <7>

R7C4 can only be <5>

R5C2 can only be <4>

R9C3 can only be <5>

R7C1 can only be <1>

R9C4 can only be <3>

R3C3 can only be <6>

R5C3 can only be <3>

R3C1 can only be <5>

R4C3 can only be <1>

R4C9 can only be <6>

R7C3 can only be <8>

R6C1 can only be <6>

R4C1 can only be <2>

R6C9 can only be <1>