No. 218, April 2006
13014 - Andrej Frolkin & Andrej Kornilow Die Schwalbe, No. 218, April 2006
10+12. Captures by the Kings?
[7N/2b2bp1/4bqbb/3b4/7K/5PPP/Pb1PPRpk/4bQ2]
13015 - Werner Keym Die Schwalbe, No. 218, April 2006
6+11. Retract 2 moves; then #2 (Proca retractor)
[4k2r/2P3p1/3prp1p/3Kpp2/2P5/4PQ2/5p2/2B4b]
13016 - Roberto Osorio & Jorge Joaquin Lois Die Schwalbe, No. 218, April 2006
9+11. Retract 7 moves; then #1 (Proca retractor)
[8/p2p3p/P2P3P/p2p4/PppPk1pb/7R/1P2P2r/5K2]
13017 - Jorge Joaquin Lois & Roberto Osorio Die Schwalbe, No. 218, April 2006
(This problem was later found to be cooked)
15+15. Proof game in 22.0 moves
[rn2k3/ppp1pRBQ/1Qq2ppp/3r3n/8/b1NB1N2/P1PP1PPP/1R1b2K1]
13018 - Nicolas Dupont Die Schwalbe, No. 218, April 2006 Dedicated to Gerd Wilts
13+14. Proof game in 23.5 moves
[r2bk3/p6p/1nr1p2p/3rp3/1p4n1/3PP2b/PPP1K1PP/RNB3NR]
13019 - Alexander Jarosch Die Schwalbe, No. 218, April 2006
11+9. Add two White Pawns and 5 Black Pawns to get a Illegal Cluster, in which every single chessman may be removed to get a legal position [German: "Ergänze 2 wei?#376;e Bauern und 5 schwarze Bauern so zu einer legalen Stellung, dass nach Entfernen eines jeden Steines die Stellung legal bleibt"]
[1n6/b5n1/R2k2Rb/q5p1/1P5N/B1N1K2r/1B4PB/3Q2r1]
13020 - Günther Ernst Weeth Die Schwalbe, No. 218, April 2006 Dedicated to Wolfgang Dittmann and Klaus Wenda
1+11. Retract 7 moves; then #1 (Proca Retractor, Anti-Circe)
[r7/3p4/7b/3n4/pp2nq2/kb6/p7/4K3]
13021 - Martin Walter Die Schwalbe, No. 218, April 2006
16+10. Proof game in 7.5 moves (Anti-Circe)
[1nb1k1n1/1pp1pp2/8/p6p/8/8/PPPPPPPP/RNBQKBNR]
13022 - Hauke Reddmann Die Schwalbe, No. 218, April 2006
12+12. Mate in 3 moves (C+)
[2krq2r/qqqqqqqq/8/8/8/8/QQQQQQQQ/R2Q1RK1]
13023 - Mario Richter Die Schwalbe, No. 218, April 2006
10+10. Proof game in 10.0 moves. Which castlings are still allowed?
[r2qkbnr/1p1pp1p1/8/8/8/8/1P1PPPP1/R1B1KB1R]
