The Retrograde Analysis Corner

Probleemblad

January 1999

R028c - Thierry le Gleuher
Probleemblad, Jan. 1999 (for the corrected version)

[6n1/p3b1p1/Bk2bqp1/1p6/7r/Kppp4/P4PPP/RNBQ2NR]

12+13. Proof game in 18.0 moves

R039 - Joost de Heer
Probleemblad, Jan. 1999

[6nR/1pp1pp2/1pp2nk1/6pp/P2q4/3br3/1PPPPP1P/1NBQK1NR]

14+14. Proof game in 16.0 moves

R040 - Gianni Donati
Probleemblad, Jan. 1999

[rnbqkbnr/1p1ppp2/2p3P1/88/1P6/1PPPPP1P/RNBQKBNR]

16+13. Shortest proof game?
(b) bNb8 -> e5

R041 - Unto Heinonen
Probleemblad, Jan. 1999

[r2qkbnr/pppppp2/6p1/8/P3P3/BP1PRPP1/2P5/1NKQ1BNR]

15+13. Proof game in 19.0 moves

R042 - Michel Caillaud
Probleemblad, Jan. 1999

[1nbqkbnr/1pR2ppQ/2p2p2/1Bp4K/3P2r1/pP3P2/2PNP2P/6NR]

13+15. Proof game in 24.0 moves

R043 - Michel Caillaud and Thomas Volet
Probleemblad, Jan. 1999

[8/bP4P1/Bp2P3/Qb2pP2/2k2pP1/p3Prp1/PP1pK2N/1nBRRN2]

R044 - Henrik Juel
Probleemblad, Jan. 1999

[n7/7P/P7/88/1PKPP1P1/2P2P2/1N1N4]

11+1. Add 1 King and 9 Knights for a legal #1