The Retrograde Analysis Corner

StrateGems

No. 22, April-June 2003

R0104 - Wolfgang Dittmann

StrateGems 22, Apr-Jun 2003

[8/2n5/8/7r/5Q2/7k/1q3n2/4K3]

2+5. Retract 7 half-moves for #1 (Proca retractor, Anticirce Cheylan)

[8/2n5/8/7r/5Q2/7k/1q3n2/4K3]

R0105 - Wolfgang Dittmann, Klaus Wenda

StrateGems 22, Apr-Jun 2003

[1q6/5P2/7P/2P5/2P5/p5Nk/1P6/4K3]

7+3. Retract 17 half-moves for #1 (Proca retractor, Anticirce Cheylan)

[1q6/5P2/7P/2P5/2P5/p5Nk/1P6/4K3]

P0123 - Daniel Novomesky

StrateGems 22, Apr-Jun 2003

[2bqkbnr/p1pp1p1p/4p3/8/8/4P3/P1PP1P1P/2BQKBNR]

12+12. Shortest proof game in 9.0 moves

[2bqkbnr/p1pp1p1p/4p3/8/8/4P3/P1PP1P1P/2BQKBNR]

P0124 - Thierry le Gleuher

StrateGems 22, Apr-Jun 2003

[1rk2b2/2p5/np2pp2/1p1p3p/4P1q1/6pn/1PPPPP1P/RNBQKBNR]

15+14. Shortest proof game in 24.5 moves

[1rk2b2/2p5/np2pp2/1p1p3p/4P1q1/6pn/1PPPPP1P/RNBQKBNR]

P0125 - Thierry le Gleuher

StrateGems 22, Apr-Jun 2003

Dedicated to Michel Caillaud

[rnb1kbnr/1pRp1p1p/1P6/3KNQ1R/1P6/1PPP1P2/5P1P/B1N4B]

16+11. Shortest proof game in 26.5 moves

[rnb1kbnr/1pRp1p1p/1P6/3KNQ1R/1P6/1PPP1P2/5P1P/B1N4B]