No. 210, December 2004
12504 - Alexander Jarosch Die Schwalbe, No. 210, 12/2004 (This problem was later found to be cooked)
12+14. Release the position
[8/5p1P/1p3P2/1PpP4/1pbrPp2/kBRqp3/nRQbrP2/1nBK4]
12505 - Alexander Jarosch Die Schwalbe, No. 210, 12/2004 (This problem was later found to be cooked)
13+13. Release the position
[7B/3p1p2/pp3P2/1P1P4/bR1p4/QBkrPp2/nBNnrP2/1qRK4]
12506 - Günther Ernst Weeth, Werner Keym Die Schwalbe, No. 210, 12/2004
11+10. Add a white piece so that white cannot castle (5 solutions)
[N7/1pP1p3/1ppp3p/5p1p/5kb1/8/PPPPPP2/2B1K2R]
12507 - Rene Jean Millour Die Schwalbe, No. 210, 12/2004 (This problem was later found to be cooked)
9+7. Add a piece so that the question whether white is allowed to castle can be answered unambiguously (monochrome chess) (2 solutions)
[6nr/3p2pk/8/7P/4pP2/4p3/2PPRB2/1N2K2R]
12508 - Alessandro Cuppini Die Schwalbe, No. 210, 12/2004
8+8. Is this position legal? (Alfil instead of Bishops; Fers instead of Queens)
[4K3/p2ppp2/2p3P1/1p6/8/1P6/1p1PPPPP/7K]
12509 - Michael Grushko Die Schwalbe, No. 210, 12/2004 Dedicated to Günter Büsing (This problem was later found to be cooked)
16+16. Proof game in 10.5 moves (Circe Parrain)
[rN1qkbNr/ppp2ppp/n5bB/3N4/3Q2n1/8/PPP1NPPP/Rn2KBnR]