ALL DE FR ES IT

Logo

Die Schwalbe

No. 198, December 2002

11719 - Andrei Frolkin & Andrei Kornilov
Die Schwalbe, No. 198, December 2002

(This problem was later found to be cooked. See 11719v)

[2bb2Bq/1ppRRP2/3ppKpk/7p/5pP1/P2P4/1PP2PP1/8]

12+11. Where were the black knights captured?

[2bb2Bq/1ppRRP2/3ppKpk/7p/5pP1/P2P4/1PP2PP1/8]


11720 - Andrei Frolkin & Andrei Kornilov
Die Schwalbe, No. 198, December 2002

[3b1KQN/2pprp2/Pp2pR1k/5pRb/6pP/1P4P1/2PPPP2/n6n]

13+13. Release the position!

[3b1KQN/2pprp2/Pp2pR1k/5pRb/6pP/1P4P1/2PPPP2/n6n]


11721 - Christoph Fieberg
Die Schwalbe, No. 198, December 2002

[8/1RpnPn2/5p2/3bN1k1/2N5/3R1p2/1PPPPPr1/1r2K3]

11+9. Proof game in 21.0 moves

[8/1RpnPn2/5p2/3bN1k1/2N5/3R1p2/1PPPPPr1/1r2K3]


11722 - Günther Weeth/Werner Keym
Die Schwalbe, No. 198, December 2002
Dedicated to Stephan Eisert

[r3k3/p1p3p1/2P1P1P1/1PBp4/1N1PP1P1/1N3BK1/6pp/6RR]

14+8. Retract 3 half-moves for a #3 (Proca defensive retractor)

[r3k3/p1p3p1/2P1P1P1/1PBp4/1N1PP1P1/1N3BK1/6pp/6RR]


11723 - Wolfgang Dittmann
Die Schwalbe, No. 198, December 2002

[1n6/3rbQ2/Npp5/4p3/2b1P3/kBp5/1nP5/4K3]

6+10. Retract 3 half-moves for a #1 (Proca defensive retractor, Anticirce Cheylan)

[1n6/3rbQ2/Npp5/4p3/2b1P3/kBp5/1nP5/4K3]


11724 - Wolfgang Dittmann
Die Schwalbe, No. 198, December 2002

[8/n6N/kp2p3/N2r4/3p4/8/8/4K3]

3+6. Retract 9 half-moves for a #1 (Proca defensive retractor, Anticirce Cheylan)

[8/n6N/kp2p3/N2r4/3p4/8/8/4K3]


11725 - Klaus Wenda
Die Schwalbe, No. 198, December 2002

[5N1N/8/1b4k1/8/8/6q1/6r1/nR3R1K]

5+5. Retract 9 white moves for a s#1 (Anticirce Cheylan/Calvet)

[5N1N/8/1b4k1/8/8/6q1/6r1/nR3R1K]


11726 - Vladimir Chutornoi
Die Schwalbe, No. 198, December 2002

[4k3/8/7K/8/8/8/8/8]

1+1. Retract 2 half-moves for a h#1. b) Kh6->a6 c) +wBa6 d) +wSc6 e) +wQg8 f) +wSe5 g) Kh6->a7 h) +wQg8 i) +wQh7 j) +wRh7

Extra conditions: in c) and d), the added piece must do the retraction; white minimummer in e), f) and g); white maximummer in h), i) and j).

[4k3/8/7K/8/8/8/8/8]


11727 - Werner Keym
Die Schwalbe, No. 198, December 2002

[6NB/8/8/8/8/1K1P4/8/kb6]

4+2. White retracts his last move, and mates with another move. How many possible retractions are there? b) Rotate 90 degrees (bK->h1) c) Rotate 180 degrees d) Rotate 270 degrees

[6NB/8/8/8/8/1K1P4/8/kb6]


11728 - Rainer Staudte
Die Schwalbe, No. 198, December 2002
After Vladimir Kusmitzov
Dedicated to B. Andrist

[8/8/4R3/8/8/3q4/k7/2K5]

2+2. White to move. Add a black bishop for a drawn position. How many solutions?

[8/8/4R3/8/8/3q4/k7/2K5]


10163v - Andrei Frolkin & Oksana Kartseva
Die Schwalbe, No. 198, December 2002

[1Q1n1rk1/1B2R1pp/1R2p3/1N6/4n1K1/PPPPPPPP/8/N1B5]

16+7. Proof game in 24.5 moves

[1Q1n1rk1/1B2R1pp/1R2p3/1N6/4n1K1/PPPPPPPP/8/N1B5]


10415v - Andrei Frolkin
Die Schwalbe, No. 198, December 2002

[1Qb3nr/bpp2p1p/2bp1p2/2kr4/7P/8/1PPPPPP1/2BQKq2]

11+14. Proof game in 21.0 moves (C+)

[1Qb3nr/bpp2p1p/2bp1p2/2kr4/7P/8/1PPPPPP1/2BQKq2]