No. 216, December 2005
12891 - Gerd Wilts Die Schwalbe, No. 216, December 2005
15+14. Mate in one (RV)
1) 1. 0-0-0# 2) 1. bxc6ep# 3) 1. gxf6ep# 4) 1. gxh6ep#
[2B3N1/1p1P2p1/1B1pp1Q1/1Pp2pPp/bP6/bp3P2/qrPPR2P/R3K1kr]
12892 - Jens Guballa & Werner Keym Die Schwalbe, No. 216, December 2005
10+11. Add a black chessman so that Black cannot castle anymore. How many solutions?
[1QK1k2r/p1pp2p1/2p4p/1n6/1P6/1P4P1/2PPPP1B/1b4b1]
12893 - Alexander Jarosch Die Schwalbe, No. 216, December 2005
11+12. Add two White chessmen, one on a8 and one an f8. Then release the position.
[3B2B1/2Pppp1b/1pp3p1/8/1p3P1N/5Pkp/2PPPrP1/4b2K]
12894 - Alexander Jarosch Die Schwalbe, No. 216, December 2005
(This problem was later found to be cooked)
12+15. Add a chessman, then release the position. a) diagram b) wPf2 -> f5
[Nqbb3n/rnNpp3/NKRp4/rRp5/kP3N2/p4n2/P2PPP2/7n]
12895 - Günther Ernst Weeth & Werner Keym Die Schwalbe, No. 216, December 2005
10+10. Retract 5 moves, then mate in 2 moves (Proca retracor)
[1nN1k2r/n1R2pp1/1p1P1p2/2B4r/1K6/P7/PpP1P1P1/8]
12896 - Eyjolfur O. Eyjolfsson Die Schwalbe, No. 216, December 2005
12+12. Proof game in 12.0 moves (C+)
[r1b1kbn1/pp1p3p/8/4p3/6p1/n7/PPPP1P1P/1NBQK1NR]
12897 - Bosko Miloseski Die Schwalbe, No. 216, December 2005
14+12. Proof game in 14.0 moves
[r2q2nr/p6p/1kp1p2b/3p2p1/1P1PP3/6PB/P1P2P1P/R2QK1NR]
12898 - Günther Ernst Weeth Die Schwalbe, No. 216, December 2005
5+11. Retract 7 moves, then mate in one (Proca retractor without forward defense, Anti-Circe)
[1N6/8/2p4p/3P2pk/2pbP2p/1R6/2b3nq/3nK3]
12899 - Eyjolfur O. Eyjolfsson Die Schwalbe, No. 216, December 2005
13+13. Proof game in 8.0 moves (2 solutions) (C+)
[r1bqkbnr/p2pp1pp/8/2p5/6P1/8/PPP1P2P/RNBQKBN1]
12900 - Günther Ernst Weeth Die Schwalbe, No. 216, December 2005
(This problem was later found to be cooked, see 12900v)
12901 - Arno Tüngler Die Schwalbe, No. 216, December 2005
2+3. What were the last 3 single moves? (Isardam)
[8/3p4/k1K5/1P6/2p5/8/8/8]
