Christmas Contest, 2003
Here are the five retro problems of the traditional Christmas Contest of the German newspaper "Stuttgarter Zeitung" by Harald Keilhack.
Among the solvers with the correct solutions of A) and B) the following prices are drawn by lot: A digital camera, an espresso machine and a telephone with an automatic answering set.
Send your solutions until the 15th of January to the following address:
Stuttgarter Zeitung (Schach) Postfach 106032 D-70049 Stuttgart Germany
The compilation of the retro problems was assisted by Günther Weeth.
A - Günther Weeth Stuttgarter Zeitung, 12/2003
3+2. White retracts one move and checkmates instead.
[6Nn/7k/8/5N2/8/8/K7/8]
B - Günther Weeth Stuttgarter Zeitung, 12/2003
4+4. Add a pawn, then mate in one.
[4Bk1K/3pp2P/8/8/8/b7/8/2N5]
The following problems are not mandatory for the contest, but senders of correct solutions for C) - E) will receive a book price.
C - Günther Weeth Stuttgarter Zeitung, 12/2003
5+5. First black, then white retract one move. Then white mates in one.
[2kr4/3ppp2/8/8/8/8/2P1P1P1/5RK1]
D - Werner Keym Stuttgarter Zeitung, 12/2003
26+26. How many white and black moves are at least necessary to give check with a) O-O-O+ (white castling to the queen's side) b) ...O-O-O+ (black castling to the queen's side) c) O-O+ (white castling to the king's side) d) ...O-O+ (black castling to the king's side) This problem asks for the minimum number of moves, not for the number of possible variants.
[rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR]
E - Josef Haas, Werner Keym, Günther Weeth Stuttgarter Zeitung 12/2003 Version of Schwalbe 12/2003
11+ 9. White retracts one move. Can he do this in a way that black may not castle anymore? A retro analysis has to be given.
[r3k3/pppp2p1/8/3p1K2/8/5P1P/1PPPP1P1/2B2BnR]