Christmas Competition, 2000
The German paper 'Stuttgarter Zeitung' has a competition this year which includes five retro problems.
For the first two problems, the following prizes can be won: Stereo-set, cordless phone, coffee machine, and various book prizes.
For the last three problems (which are presented as a "bonus"), three copies of the booklet 'Tatort Schachbrett' (place of crime: chess board) by Josef Haas will be given away.
1 - Motwani/Merkin
4+2. White just promoted. (a): How can black force a draw now? (b): Black never promoted. What was the position before white's last move? (c): Instead of the move that lead to the diagram, how could white win?
2 - Karl Reichart (Version by Günther Weeth/Werner Keym)
11+13. Add both kings, and mate in 1. How many solutions?
3 - Josef Haas
12+8. Mate in 1.
4 - Werner Keym & Günther Weeth (Corrected version)
10+9. White retracts his last move, and then mates in 3.
5 - Unknown
11+10. Add a black unit (piece or pawn), and then mate in 1.