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Maybe I should have played |18.f7 19.g6 20.e9 21.h8 22.g10 23.i10 24.i11
28.i16 29.i14 30.g17 31.j16 32.k17 33.l17 34.m18 35.n18 36.o19 37.p19 38.q20 39.u19 40.r18 41.t17 42.r16 43.s15 44.r5
and then o12 wouldn't be evil anymore.Although I'm not sure if I'm not missing something.
32.j9 33.s6 34.s14 35.j16 36.m11 37.l9 38.n9 39.m7 40.l4 41.k8 or
32.k15 33.r13 34.r5 35.l9 36.n9 37.m12 38.o11 39.o13 40.o17 41.u12 42.q18 43.t18 44.o12 45.t5
|28.i16 29.i14 30.g17 31.p17 32.j9 33.s6 34.s14 35.j16 black can play 36.o17 37.k18 38.n9 and now it looks like white's best shot is 39.m10 40.m11 41.l8 42.l7 43.k8 44.k9 45.i10 46.l10 with a draw.
But there is also a flaw in your lline:
|28.i16 29.i14 30.g17 31.j16 32.k17 33.l17 34.m18 35.n18 36.o19 37.p19 38.q20 39.u19 40.r18 41.t17 42.r16 43.s16 and now if 44.p17 45.u12 white wins on the right side. Or 44.r5 45.u12 46.t6 47.k10 48.p17 49.o11
I still conclude that my 18.G6 was losing whereas |18.f7 was winning for black.
Aren't we basically at the same point as after 21.k11?
|18.f7 19.g6 20.h19 21.h17 22.j18 23.d19 24.d14 25.f18 26.g9 27.g11 28.e10 29.i10 30.i8 31.k9 32.n5 33.m8 34.l6 35.p7 36.n9 37.o16
Warning: When I clicked on 33.k1 in the move list, I got an error "illegal spot" but if I click on the hole at k1 instead, the move works, then I can continue clicking on the move list. I will inform Alan. Do you experience the same problem?
So I back up: 26.n4 how's that?
|18.f7 19.g6 20.g9 21.g11 22.e10 23.i10 24.h4 25.k9 26.n4 27.r4 28.n9 29.m8 30.p5 31.o16 32.s14 33.o12 34.r6 35.s6 36.m11 37.n14 38.p11 39.p10 40.q9 41.q8 42.r7 43.p6 and now, under standard rules, 44.q7 45.q5 would lead to a draw, but since this game is PP, 44.q5 wins for black. White could have tried something besides R4, but it looks like black still wins.
Just to reiterate, 21.d9 does not work because of 22.h19 23.h17 24.j18 25.d19 26.d14 27.f18 28.e11 and then white could play 29.g11 with essentially the same variation as above.
18.f7 19.g6 20.g9 21.g11 22.e10 23.i10 24.h4 25.k9 26.n4 27.l7 28.l5 29.p5
|18.f7 19.g6 20.h19 21.h17 22.j18 23.d19 24.d14 25.f18 26.g9 27.g11 28.e10 29.i10 30.i8 31.k9 32.n5 33.m8 with a white win.
But with my H4 improvement, I don't need to get fancy with N4.
20.g9 21.g11 22.e10 23.i10 24.h4 25.k9 26.n5 27.m8 28.r5 29.l6 30.l4
|18.f7 19.g6 20.g9 21.g11 22.e10 23.i10 24.h4 25.k9 26.n5 27.l7 28.l4 29.p7