The Retrograde Analysis Corner

Probleemblad

January 2001

R110c - Alexandr Zolotarev

Probleemblad Jan. 2001

[1NrRb3/prnN1pp1/QBKpp3/2p4b/Pk2P3/Rp1P4/P1PP2P1/8]

14+13. Last move? (b): wPa4->a5; bNc7 <-> wNd7

[1NrRb3/prnN1pp1/QBKpp3/2p4b/Pk2P3/Rp1P4/P1PP2P1/8]

R119 - Alexandr Zolotarev

Probleemblad Jan. 2001

[4n3/2nPp3/p3pp2/5K2/4ppr1/4kN1b/3NPRbR/4BBQn]

10+13. Minimal number of knight moves?

[4n3/2nPp3/p3pp2/5K2/4ppr1/4kN1b/3NPRbR/4BBQn]

R120 - Gerald Ettl

Probleemblad Jan. 2001

[2b5/4P3/p5P1/5PRP/1p1PPRBn/pp1pPqkN/1pp1prPN/6Kn]

14+14. Last 20 moves? (Circe)

[2b5/4P3/p5P1/5PRP/1p1PPRBn/pp1pPqkN/1pp1prPN/6Kn]

R121 - Michel Caillaud

Probleemblad Jan. 2001

[rb2k3/2p2p1K/1B6/1RPP1PP1/B1Prbrp1/1Prp1p2/2p2P2/N7]

12+13. h#2

[rb2k3/2p2p1K/1B6/1RPP1PP1/B1Prbrp1/1Prp1p2/2p2P2/N7]

R122 - Olli Heimo

Probleemblad Jan. 2001

[rnbqkbR1/pppppppQ/b1B5/1P5P/5P1B/2NPK3/P1PP4/6N1]

14+14. Proof game in 20.5 moves

[rnbqkbR1/pppppppQ/b1B5/1P5P/5P1B/2NPK3/P1PP4/6N1]

R123 - Satoshi Hashimoto

Probleemblad Jan. 2001

[1n2kb2/qpp1p1p1/1np2pr1/1b6/6p1/1p3r2/1PP2PP1/RNBQKBNR]

12+16. Proof game in 22.5 moves

[1n2kb2/qpp1p1p1/1np2pr1/1b6/6p1/1p3r2/1PP2PP1/RNBQKBNR]

R124 - Henrik Juel & Bernd Schwarzkopf

Probleemblad Jan. 2001

[8/k7/8/8/5K2/8/8/8]

1+1. Add 10 white rooks for an Illegal cluster. (b): bKb7 (c): bKe7 (d): bKf7

[8/k7/8/8/5K2/8/8/8]

F233 - Fernand Joseph

Probleemblad Jan. 2001

[3Ek2r/8/6E1/3E2K1/E7/e4E2/8/8]

6+3. h#2.5 (Equihoppers on a3, a4, d5, d8, f3, g6) (b): Ef3->a2

[3Ek2r/8/6E1/3E2K1/E7/e4E2/8/8]

167i - Frank Christiaans

Probleemblad Jan. 2001

[8/B1p5/2B5/8/8/BP1P4/1Pk1N3/R3K1N1]

10+2. #2

[8/B1p5/2B5/8/8/BP1P4/1Pk1N3/R3K1N1]