5.p12 seems to work as a local battle, but the opening is a time to make lots of threats all across the board. Somewhere on the left side would have been better, for example |5.i116.j177.p128.o109.l14
|6.o10 is too early to start a local battle IMO. |6.n18 makes better use of the board. for example 7.s198.n89.p810.q11 or
|6.o10 is too early to start a local battle IMO. |6.n18 makes better use of the board. for example 7.s19 8.n8 9.p8 10.q11 or
|7.k10 8.n12 9.i15 looks better than |7.o9 8.o19 9.t17 10.q11
White is probably winning after J10. For example |14.n18 15.s19 16.l10 17.h11
Congratulations to tamiflu!