No. 250, August 2011
14945 - Michel Caillaud, Nikolai Beluchow
Die Schwalbe, Nr. 250, 08/2011
16+9. First moves of the promoted pieces?
[2r3BR/2r3Kb/2p2p2/5k2/5b1q/Pn1P1PP1/P1PP2PB/N4NRQ]
Lösung
The solution not available yet. Please contribute!
14946 - Sergio Orce
12+9. Retract 6 moves, then #1 (Proca Retractor) (3 Solutions)
[8/2p1Proof game1p/P2bRP1k/4pKpP/6p1/6PR/P5PP/5B1r]
14947 - Yaakov Mintz
8+16. Proof game in 10.0 moves
[rnbqkbnr/pppppppp/8/8/8/8/1PPP1PPP/1N2K3]
Lösung Replay
1.e4 Sc6 2.e5 Sxe5 3.Df3 Sxf3 4.Kd1 Sxg1 5.Le2 Sxe2 6.Te1 Sxc1 7.Te4 Sxa2 8.Tb4 Sxb4 9.Ta6 Sxa6 10.Ke1 Sb8
14948 - Roberto Osorio, Jorge Joaquin Lois
12+14. Proof game in 23.5 moves
[2b5/2br1p1p/pppp3q/5k2/1n2n1r1/P7/P1PP3P/RNB1KBNR]
1.f4 a5 2.f5 a4 3.f6 a3 4.fxg7 Sf6 5.g8=D Ta4 6.Dg3 Sa6 7.Dd6 exd6 8.g4 Ke7 9.g5 Ke6 10.g6 Le7 11.g7 Df8 12.g8=D Dh6 13.Dg2 Td8 14.Dc6 dxc6 15.e4 Td7 16.e5 Kf5 17.e6 Ld8 18.e7 Tg4 19.e8=D Sb4 20.De3 Se4 21.Db6 cxb6 22.De2 Lc7 23.Da6 bxa6 24.bxa3
14949 - Alfred Pfeiffer
4+4. ser-Self-0-0 in 5 (AP) (Fischer Random)
[6kr/7p/2P1P3/2PpK3/8/8/8/8]
Solution by Alfred Pfeiffer:
1. c5:d6 e.p. 2. d6-d7 3. d7-d8=B 4. Bd8-g5 5. Bg5-h6 O-O
14950 - Andreas Thoma
Dedicated to Thomas Brand
13+4. retract 2 moves, then #1 (Proca Retractor, Anticirce)
[2Q2rk1/6NR/2P3N1/6N1/8/1P1PP3/2b2B2/1B1n1RK1]
14951 - Bernd Gräfrath
13+12. Proof game in 10.5 moves (Losing Chess)
[2b1kbnr/2ppppp1/p6p/8/8/P6P/1P1P1P1P/RNBQKB1R]
14952 - Thomas Thannheiser
13+12. Proof game in 12.5 moves (Losing Chess)
[rnn1k2K/p1pp1p2/3bq3/1p2p3/8/8/PPPPP2P/RNBQ1BN1]
14953 - Bernd Gräfrath, Wolfgang Dittmann
15+15. a) Minimum number of Knight moves? b) Minimum number of white Knight moves? (Single Combat, Duellantenschach)
Die Aufgabe wurde in der vorliegenden Form zurückgezogen, und in modifizierter Form (gleich Stellung, aber neue Forderung) neu publiziert, s. P1232435
[r1bqkbnr/pppppppp/8/8/2P5/6P1/PP1PPPP1/RNBQK1NR]
a) (AL: 32) b) (AL: 2)