The Retrograde Analysis Corner

Die Schwalbe

No. 150, December 1994

R1 - Keym, Werner
Die Schwalbe, 10/1972
Dedicated to H.D.Leïs

[8888/3p4/3k1p2/7r/R3K2R]

3+4. (RV) Helpmate in 2

R2 - Gruber, Hans
Schach, 1979

[7K/rp3p2/P2P1Pk1/R7/4P3/88/2B4R]

8+4. Mate in 1 (who?) (a) Diagram; (b) add a bPc7; (c) further, remove bRa7

8694 - Hazebrouck, André
Die Schwalbe Heft 150, 12/1994

[2N1b3/N1pprPpN/4pBp1/1N2p1K1/8/P1n4k/4PPRr/2N2Bbq]

13+13. May White mate in one?

8695 - Ettl, Gerald
Die Schwalbe Heft 150, 12/1994

[3bRRqQ/1pp1Np1b/1p1ppKRk/7p/6p1/2P2PrB/2PP1PPP/7N]

8696 - Wilts, Gerd
Die Schwalbe Heft 150, 12/1994

[rn1q1b1r/ppp1pbpp/4pp2/1k5n/7P/4P3/PPPPKPP1/RNBNQB2]

15+16. (a) Proof game in 10.0 moves; (b) Proof game in 12.5 moves

8697 - Haas, Josef
Die Schwalbe Heft 150, 12/1994

[R7/R7/P1P5/3Q2K1/B1N2N2/P2PB1P1/P2P2P1/8]

16+0. On which squares could one put the missing bl. King?

8698 - Haas, Josef
Die Schwalbe Heft 150, 12/1994

[4n1r1/1P1p2qr/1P2P1Np/N6P/b1BQP2P/1P5P/5R1B/bn3RK1]

16+9. Add the bl. King so that he is checkmated

8699v - Andrej Kornilow
Die Schwalbe Heft 157, 02/1996 (for the corrected version)

[QN1B3B/KRPPPPP1/RPB2KPQ/PP1NPPPN/P1P1P3/6RR/7P/8]

8700 - Lubkin, Juri
Die Schwalbe Heft 150, 12/1994

[kr6/8/K3Q3/88888]

2+2. White retracts one move so that mate in 1 and helpmate in 1 (White starts) is possible

8701 - Borodatow, Leonid N.
Die Schwalbe Heft 150, 12/1994

[888/6PN/4N1pP/PP6/Q1PPP1P1/2k1K2R]

13+2. Helpmate in 1 (Set play)

8702 - Keym, Werner
Die Schwalbe Heft 150, 12/1994

[8/6PP/5PK1/4NB1P/7k/6NP/5PP1/8]

8703 - Schmitz, Hans Heinrich
Die Schwalbe Heft 150, 12/1994

[rnbqkbnr/ppppp1p1/5p2/88/5P2/PPPPP1P1/RNBQKBNR]

15+15. Shortest proof game in 5.0 moves