The Retrograde Analysis Corner

Phénix

No. 62, April 1998

2796 - A. Zolotarev
Phénix 62, Apr. 1998

[3rqNbb/3p1pnR/4pKPB/6rP/4Pk2/1P3P2/P3PP2/R7]

13+10. Minimal number of Rook moves?
(b) wRa1 -> b1 & wPe4 -> e3

2797 - G. Donati
Phénix 62, Apr. 1998

[Kn1qk1nr/p1pppp1p/8/3p2P1/5PP1/r4P2/PPPPN3/RNBQ4]

14+13. Shortest proof game in 17.0 moves

2798 - M. Caillaud
Phénix 62, Apr. 1998

[RNBQ1BnR/2p1p1P1/5k1q/p2p1p1p/5P2/2bP3P/1P3K2/r4bnr]

12+14. Shortest proof game in 28.5 moves

2799 - T. Le Gleuher
Phénix 62, Apr. 1998

[4k3/1pp5/n2p1p2/2b4p/rqR5/p3pPPB/PPPP1PrP/RNBQK1N1]

16+13. Shortest proof game in 22.5 moves

2800 - V. Liskovets
Phénix 62, Apr. 1998

[2R5/8/4R3/8/K5R1/8/2RpR3/k7]

6+2. Mate in 2 (PRA)
Retro-Volages

2801 - T. Le Gleuher
Phénix 62, Apr. 1998

[8/2a3a1/8/1A6/a1A5/c1A5/1B1A2A1/3D4]

11. (Monochromatic chess) History of bPe7? (Orientate the board and replace letters by men; uppercase/lowercase denote the two colours)