1.b2 2.swap 3.j10 4.k7 5.l7 6.m5 7.n5 8.m6 9.n6 10.m7 11.n7 12.m8 13.n8 14.m9 15.n9 16.m11 17.m10 18.l11 19.l10 20.k11 21.k10 22.i12 23.h12 24.h13 25.g13 26.f15 27.e15 28.f14 29.e14 30.e16 31.d16 32.c18 33.d17 34.d18 35.e17 36.e18 37.f17 38.f18 39.g17 40.g18 41.h17 42.h18 43.i17 44.i18 45.j17 46.j18 47.k17 48.k18 49.l17 50.l18 51.n17 52.m17 53.n16 54.m16 55.n15 56.m15 57.n14 58.l14 59.o12 60.o10 61.m12 62.k13 63.q9 64.p8 65.q7 66.r10 67.p10 68.q8 69.s7 70.r8 71.s8 72.r9 73.resign