The Retrograde Analysis Corner

diagrammes

No. 123 , Oct. 1997

3870 - N. Plaksin and A. Zolotarev
diagrammes 123, 10/1997

14+12. Mate in 1 (Yes, the wh. King is in check)

[RNn1b3/qRprPp2/rbKpp3/P3n3/B1kP4/2P5/2PP1P1P/3N4]

Solution

3871 - Thierry Le Gleuher
diagrammes 123, 10/1997

9+10. shc#10 (Consequent Series-Helpmate in 10 moves)

[4k3/2p4P/7p/P5p1/pp4pP/bp6/pP2PPP1/K4B2]

Solution

3872 - Christian Poisson
diagrammes 123, 10/1997

16+16. (Circe Parrain) a) Proof game in 4.0 moves b) Proof game in 4.5 moves

[rnbq1knr/pppppppp/1b2Q3/8/8/2P5/PP1PPPPP/RNB1KBNR]

Solution

3873 - Stanislav Vokal
diagrammes 123, 10/1997

11+13. White's last move was O-O. May Black castle?

[r3k3/1pqppp1p/p1pn1n1p/8/8/2N2N1P/PPPPP2P/5RK1]

Solution

3874 - Jean-Michel Trillon
diagrammes 123, 10/1997

5+4+4. Ortho-Reconstruction in 25 single moves (Wh. starts) (4 neutral pawns)

[k1B5/x1PP4/K1x5/p1x5/p7/2p1x3/4P3/8]

Solution

3875 - Didier Innocenti and Maryan Kerhuel
diagrammes 123, 10/1997

14+13. Circe. Proof game in 25 simple moves

[Knrqk2r/ppppp2p/1b3p2/8/8/8/PPPPPP1P/RN1Q1BNR]

Solution