dailysudoku.com

[nataraj]

This squiggly:



has only 20 clues. No house contains more than three clues and very few of them even contain three. Looks very difficult ...

Yet, with the help of the law of leftovers (LoL says that r4c5678 must contain the same candidates as r5c1234, therefore r4c56 must contain "1") and a "box"/line interaction here and there, it is practically only singles from start to finish.

Have fun !

SPOILER:


single 3 (box) r7c4
single 2 (box) r4c9
single 9 (box) r7c1

next solve all the ones:
single 1 (col) r1c4 (because of the LoL mentioned above)
single 1 (col) r8c7 (because of box/line: r8c67 must contain 1)
single 1 (row) r6c6 and single 1 (row) r4c5 (again, see LoL above)
single 1 (col) r7c2
which leaves single 1 r3c3

single 8 (row) r7c7
single 9 (col) r2c4
single 4 (row) r2c3

should not be too hard from there ...