No. 215, October 2005
12827 - Alexander Jarosch Die Schwalbe, No. 215, October 2005
5+11. Add two chessmen, then s#3
[2K1k3/Pp4pp/bp5P/1p6/pp6/1p6/1P5P/2n5]
12828 - Thomas Brand Die Schwalbe, No. 215, October 2005
7+8. Retract 5 moves, then #1 (Proca Retractor)
[8/b2p4/4B2p/P3p2k/P1b2Pp1/P5p1/P7/7K]
12829 - Andrej Frolkin & Paul Raican Die Schwalbe, No. 215, October 2005
14+10. Retract 7 moves, then #6 (Proca retractor)
[8/1pp5/8/8/3pPP2/2PPRKPk/1PPRr1rp/1BbbQNBq]
12830 - Paul Raican Die Schwalbe, No. 215, October 2005
8+6. Retract 2 moves, then #1 (Proca retractor, Circe Parrain)
[1bN1b3/8/8/3kp1P1/P4P2/2p5/R1Q2n1K/2P5]
12831 - Günther Ernst Weeth Die Schwalbe, No. 215, October 2005
3+8. Retract 5 moves, then #1 (Proca retractor without forward defense, Anti-Circe Cheylan)
[8/8/8/kr6/1p6/8/b1rnP2n/q1R1K3]
12832 - Günther Ernst Weeth Die Schwalbe, No. 215, October 2005
2+7. Retract 10 moves, then #1 (Proca retractor without forward defense, Anti-Circe)
[1r3n2/8/6N1/8/8/8/1nb4q/1rk1K3]
12833 - Wolfgang Dittmann Die Schwalbe, No. 215, October 2005
(This problem was later found to be cooked; see 12833v)