The Retrograde Analysis Corner

The Problemist

September 2007

PS1975F - Eyjólfur Eyjólfsson

The Problemist, September 2007

[rnb1qbn1/1pppkp2/4p1p1/8/8/8/PPP1P1PP/RNB1KB2]

11+13. Shortest Proof Game in 10.0 moves

[rnb1qbn1/1pppkp2/4p1p1/8/8/8/PPP1P1PP/RNB1KB2]

PS1976F - Alexander George

The Problemist, September 2007

[rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQK2R]

15+16. Is O-O legal?

[rnbqkbnr/pppppppp/8/8/8/5N2/PPPPPPPP/RNBQK2R]

F2586R - Wolfgang Dittmann

The Problemist, September 2007

[kN6/bpp2K2/Pp3p2/7B/n1P5/2P5/2PP2pP/2B5]

10+8. Retract 7 moves, then mate in one (Proca Retractor, Anti-Circe)

[kN6/bpp2K2/Pp3p2/7B/n1P5/2P5/2PP2pP/2B5]

R389 - Alexander Yarosh

The Problemist, September 2007

[8/2N2N2/6N1/5NN1/3NN3/8/4NN2/4N3]

10+0. Add wK, wQ, bK, bQ and 10 bN for an Illegal Cluster

[8/2N2N2/6N1/5NN1/3NN3/8/4NN2/4N3]

R390 - T.R. Dawson

Western Daily Mercury, 14.2.1919

The Problemist, September 2007

[rrnb4/PqP1pp2/nQp3b1/1Bp1PPP1/1kp1Kpp1/8/1PP5/8]

10+15. Add white Knight for a mate in one

[rrnb4/PqP1pp2/nQp3b1/1Bp1PPP1/1kp1Kpp1/8/1PP5/8]