No. 150, December 1994
R1 - Keym, Werner Die Schwalbe, 10/1972 Dedicated to H.D.Leïs
3+4. (RV) Helpmate in 2
8+4. Mate in 1 (who?) (a) Diagram; (b) add a bPc7; (c) further, remove bRa7
13+13. May White mate in one?
15+13. Release the position
15+16. (a) Proof game in 10.0 moves; (b) Proof game in 12.5 moves
16+0. On which squares could one put the missing bl. King?
16+9. Add the bl. King so that he is checkmated
30. Colour the pieces ! Last 12 single moves?
2+2. White retracts one move so that mate in 1 and helpmate in 1 (White starts) is possible
13+2. Helpmate in 1 (Set play)
11+1. Last move?
15+15. Shortest proof game in 5.0 moves