Victor Aberman (USA)
 
Win 3+4

1. Qd3+
 I. 1 ... Ke7 2. Qh7+ Kd6
   [2 ... Kf8 3. Qf7#]
   [2 ... Kf6 3. Qh8+ Kf5 4. Bg6+ Kf4 5. Qh2+ +-]
   3. Qc7+ Kd5 4. Qc5+ Ke4 5. Qc2+
        Ia. 5 ... Kf4 6. Qh2+ Ke4
             [6 ... Kf5 7. Bg6+ Kf6 8. Qh8+ +-]
             7. Bg6+ Kd5 8. Qa2+ Kd6 
             [8 ... Kd4 9. Qb2+ Kd5 10. Qb5+ Kd4 11. Qd3#]
             9. Qa3+ Kd7
             [9 ... Kd5 10. Qc5#]
            10. Qa4+ Kd6 11. Qc6+ Ke7 12. Qe8+ Kf6 13. Qh8+ +-


       Ib. 5 ... Ke3 6. Qe2+ Kd4 7. Qb2+ Ke4
           
[7 ... Kd5 8. Bf3+ Kd6 9. Qa3+ Kd7 10. Bc6+ Kd8 11. Qf8#]
            8. Bg6+ Kf4
9. Qh2+ +-

       Ic. 5 ... Kd5 6. Bf3+ Kd4
            [6 ... Kd6 7. Qc7#]
           
7. Qb2+ +-
 
II. 1 ... Qd5 2. Qc3! Qf5
    [2 ... Qxh5 {or Qg5} 3.  Qc7+ Kd5 4. Qc5+ +-]

    [2 ... Qa2 3. Qc5+ Kd7 4. Qc7#) (2 ... Ke7 3. Qg7+ Kd6 4. Qc7#]
                  3. Qc7+ Kd5 4. Qc5+ Ke4 5. Bg6! Qxg6 6. Qc2+ +-