2...g3+
1. Kf1 b3 2. Kf2 g3+ 3. Kg2. Your move.
3...Ke3
1. Kf1 b3 2. Kf2 g3+ 3. Kg2 Ke3 4. e5. Your move.
4...Kxd3
1. Kf1 b3 2. Kf2 g3+ 3. Kg2 Ke3 4. e5 Kxd3 5. e6. Your move.
5...Kc2
1. Kf1 b3 2. Kf2 g3+ 3. Kg2 Ke3 4. e5 Kxd3 5. e6 Kc2 6. e7. Your move.
6...d3
1. Kf1 b3 2. Kf2 g3+ 3. Kg2 Ke3 4. e5 Kxd3 5. e6 Kc2 6. e7 d3 e8=Q. Your move.
7...d2
1. Kf1 b3 2. Kf2 g3+ 3. Kg2 Ke3 4. e5 Kxd3 5. e6 Kc2 6. e7 d3 7. e8=Q d2 8. Qe2. Your move.
8...Kc1
8. Qe2 Kc1 9. Qc4+. Your move.
9...Kxb2
8. Qe2 Kc1 9. Qc4+ Kxb2 10. Qd3. Your move.
10...Kc1
8. Qe2 Kc1 9. Qc4+ Kxb2 10. Qd3 Kc1 11. Qc3+. Your move.
11...Kdq
Kd1
2...g3+