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1. Ka4 c1=Q

1. Qg2+ Kd3 2. Qf3+ Kd2 3. Qf2+ Kc3 4. Qe3+ Kb2 ... 9 moves

1. Qd5+ Kc3 2. Qc5+ Kb2 3. Qb4+ Ka2 4. Qc3 Kb1 ... 8 moves

1. Qh5+ Ke1 2. Qe5+ Kf2 3. Qd4+ Ke2 4. Qe4+ Kf2 ... 26 moves

1. Qh5+ Ke1 2. Qh1+ Ke2 3. Qg2+ Kd1 4. Kb7 Ke1 ... 5 moves

1. Kc4 a1=Q 2. Qg2+ Kc1

1. Kc4 a1=Q 2. Qg2+ Kc1 3. Qh1+ Kb2 4. Qh8+ Kb1 ... 9 moves

1. Kc4 a1=Q

1. Kc4 a1=Q 2. Qg2+ Kc1 3. Kb3 Qb1+

1. Qb7+ Ka1 2. Qa6 Kb1 3. Qd3+ Kc1 4. Qa3+ Kb1 ... 6 moves

1. Qb7+ Kc3

1. e3