[Retros] Die Schwalbe Heft 228, december 2007

[Joost de Heer]

13580 - Alexander Yarosh
4b3/p2p1Pp1/2p1pp2/7p/7K/4P1PP/1PP1PPR1/5kbS (11+10)
+---+---+---+---+---+---+---+---+

|   | . |   | . |*B | . |   | . |

+---+---+---+---+---+---+---+---+

|*P |   | . |*P | . | P |*P |   |

+---+---+---+---+---+---+---+---+

|   | . |*P | . |*P |*P |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |*P |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | K |

+---+---+---+---+---+---+---+---+

| . |   | . |   | P |   | P | P |

+---+---+---+---+---+---+---+---+

|   | P | P | . | P | P | R | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |*K |*B | S |

+---+---+---+---+---+---+---+---+
Last 2 moves? Duplex

13581 - Bernd Gräfrath
8/8/4k1P1/5Rr1/8/8/3rPP2/5RK1 (6+3)
+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |*K | . | P | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . | R |*R |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   |*R | P | P |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . | R | K |   |

+---+---+---+---+---+---+---+---+
-1 (black starts) & r#1
2 solutions, Høeg retractor

13582 - Frank Fiedler
1R2kBb1/2p2pp1/8/8/8/8/8/1K6 (3+5)
+---+---+---+---+---+---+---+---+

|   | R |   | . |*K | B |*B | . |

+---+---+---+---+---+---+---+---+

| . |   |*P |   | . |*P |*P |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . | K | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
-1.5 & h#1.5 (help retractor)

13583 - Frank Fiedler
rsbq3r/pppp1kpp/8/8/8/8/PPPPpPPP/RSBQKBSR (15+13)
+---+---+---+---+---+---+---+---+

|*R |*S |*B |*Q |   | . |   |*R |

+---+---+---+---+---+---+---+---+

|*P |*P |*P |*P | . |*K |*P |*P |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

| P | P | P | P |*P | P | P | P |

+---+---+---+---+---+---+---+---+

| R | S | B | Q | K | B | S | R |

+---+---+---+---+---+---+---+---+
SPG 7.0 (2 solutions)

13584 - Klaus Wenda
8/1b6/8/3p3B/2kp4/3p2s1/3pp3/RK6 (3+8)
+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |*B | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |*P | . |   | . | B |

+---+---+---+---+---+---+---+---+

|   | . |*K |*P |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |*P | . |   |*S |   |

+---+---+---+---+---+---+---+---+

|   | . |   |*P |*P | . |   | . |

+---+---+---+---+---+---+---+---+

| R | K | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+
-6 & #1, Proca retractor, anticirce

13585 - Günther Weeth
8/4R3/6sp/S7/k2p1p1q/S2PK3/3r4/2B2r2 (6+8)
+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | . |   | R |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   | . |   | . |*S |*P |

+---+---+---+---+---+---+---+---+

| S |   | . |   | . |   | . |   |

+---+---+---+---+---+---+---+---+

|*K | . |   |*P |   |*P |   |*Q |

+---+---+---+---+---+---+---+---+

| S |   | . | P | K |   | . |   |

+---+---+---+---+---+---+---+---+

|   | . |   |*R |   | . |   | . |

+---+---+---+---+---+---+---+---+

| . |   | B |   | . |*R |[*]|   |

+---+---+---+---+---+---+---+---+
-4 & #1, Proca retractor without forward defense,
anticirce, magic square g1

13586 - Bernd Schwartzkopf
What is the smallest square board on which 9 kings can be placed which 
all have a different number of possible moves?