No. 228, December 2007
13580 - Alexander Yarosh
Die Schwalbe 228, December 2007
11+10. Last 2 moves? (Duplex)
[4b3/p2p1Pp1/2p1pp2/7p/7K/4P1PP/1PP1PPR1/5kbN]
Solution
13581 - Bernd Gräfrath
6+3. -1 (black starts) & r#1 (2 solutions, Høeg retractor)
[8/8/4k1P1/5Rr1/8/8/3rPP2/5RK1]
13582 - Frank Fiedler
3+5. -1.5 & h#1.5 (Help retractor)
[1R2kBb1/2p2pp1/8/8/8/8/8/1K6]
13583 - Frank Fiedler
15+13. Shortest proof game in 7.0 moves (2 solutions)
[rnbq3r/pppp1kpp/8/8/8/8/PPPPpPPP/RNBQKBNR]
13584 - Klaus Wenda
3+8. -6 & #1 (Proca retractor, anticirce)
[8/1b6/8/3p3B/2kp4/3p2n1/3pp3/RK6]
13585 - Günther Weeth
6+8. -4 & #1 (Proca retractor without forward defense, anticirce, magic square g1)
[8/4R3/6np/N7/k2p1p1q/N2PK3/3r4/2B2r2]
13586 - Bernd Schwarzkopf
What is the smallest square board on which 9 kings can be placed which all have a different number of possible moves?
