No. 179, October 1999
10538 - Günther Weeth & Werner Keym Die Schwalbe Heft 179, Oct. 1999
12+9. Retract 1 white move, and mate in 1.
13+12. Last move?
14+11. Who has the move?
12+13. Proof game in 26.0 moves
14+14. Proof game in 30.0 moves
7+12. Add the 8 missing white officers (not the pawn) for an Illegal Cluster