No. 206, April 2004
12234 - Andrej Frolkin, Juri Lebedew, Andrej Kornilow Die Schwalbe, No. 206, April 2004
13+10. Release the position
[8/1pppp3/B4p2/RP6/rp1PP2P/kRbP2P1/2PrP3/1QK5]
12235 - Alexander Jarosch Die Schwalbe, No. 206, April 2004
13+11. What was the first and the last move of the black king?
[2b4n/1pppppp1/1Q1P2p1/PBP5/RkP5/2R5/p3P2P/1NNK4]
12236 - Alexander Jarosch Die Schwalbe, No. 206, April 2004
8+13. Add two pieces, then #1
[2b5/pp1pp1p1/6p1/2p5/8/kPP5/qp1PPPPP/rn1K4]
12237 - Klaus Kiesow Die Schwalbe, No. 206, April 2004
10+14. Proof game in 11.0 moves (C+)
[rnb1kb1r/1pp2ppp/8/3p4/3P4/KpN5/P1q2PPP/5BNR]
12238 - Terho Jaatinen Die Schwalbe, No. 206, April 2004
8+9. Proof game in 12.0 moves (C+)
[4k3/3ppp2/8/8/8/8/1rq1nbr1/RNBQKBNR]
12239 - Gerd Wilts Die Schwalbe, No. 206, April 2004
14+14. Proof game in 16.0 moves (C+)
[2nrk3/p2r1ppp/1pbb2n1/Q2p4/8/8/P1PBPPPP/RNQ1KBNR]
12240 - Paul Raican Die Schwalbe, No. 206, April 2004 (This problem was later found to be cooked)
12+11. Proof game in 23.0 moves
[rn1qkb1r/2p1np1p/3P1p1P/5BQ1/3R1K2/8/5PPP/1N4NR]
12241 - Wolfgang Dittmann Die Schwalbe, No. 206, April 2004
4+8. Retract 2 moves, then s#1 (Proca Retractor, Anticirce Cheylan) a) diagram b) Bg2 -> a6
[7R/2pk2p1/8/8/1q6/2Rp3p/5rB1/r3K3]
12242 - Walentin Rudenko, Andrej Frolkin Die Schwalbe, No. 206, April 2004
11+13. Proof game in 26.0 moves. All black pawns are Kombi-Pawns.
[1n1qk1n1/p1pppp1p/7b/8/pP4p1/N1P2P2/1P1PP1PP/4K2R]