No. 168, December 1997
9861 - Werner Keym Die Schwalbe Heft 168, 12/1997 Ded. Josef Haas 75th birthday
6+8. Add (a) wQa1 or (b) wRa1 or (c) wBa1. In which position is the shortest mate possible?
10+14. Series-Helpmate in 6 (sh#6) AP
14+14. Release the position
16+8. Reflex mate in 2
11+11. Helpmate in 2 (Duplex)
16+16. Proof game in 6.5 moves (Circe Parrain) (a) Diagram, (b) without Pc5
15+14. Proof game in 7.5 moves (Circe Parrain)
15+6. Mate in 2
4+12. Helpmate in 3