HINT: R1/c1-2,5,8, R2/c1,3,6, R3/c2,4,7-9, R4/c3,5,8, R5/c1,4,6-7, R6/c2,5,8, R7/c3,5,7, R8/c1,3-4,6,8 - it´s symmetric...

And advise for Syeh: check your puzzles before posting them public, they are illogical...

Thenks for help!

Thanks for all your hints Joe Tramp :-)