May 2003
R200 - Mario Parrinello
Probleemblad, May 2003
15+12. Shortest proof game in 12.5 moves
[rn3bb1/ppR1nkpR/3p1q2/4pQ1B/P1P5/6PN/1P1P1PP1/1NB1K3]
Solution
R201 - Reto Aschwanden & Michel Caillaud
12+13. Shortest proof game in 19.0 moves
[2n2nb1/2pr2qp/p2p1k1r/1p4p1/8/8/P1PP3P/RNBQKBNR]
R202 - Paul Raican
13+13. Shortest proof game in 7.5 moves (transmuting kings)
[rnb1k2r/ppppp1pp/5n2/8/3P4/3B4/PPP3PP/RNB1K1NR]
R203 - Henryk Grudzinsky
15+15. Shortest proof game in 9.5 moves (Circe)
[rRbBk1nr/pppppppp/8/8/4N3/b7/PqPPPPPP/3QKBNR]
R204 - A. Frolkin, A. Kornilov, H. Juel
14+12. a) Last 3 half-moves? b) Minimum number of moves that also occurred in reverse?
[2bb2Bq/1ppRRP2/1p1ppKpp/5p1Q/1P3k2/5P1P/1PP1PP2/6B1]
R205 - Klaus Wenda
Dedicated to Dirk Borst for his 40th birthday
(This problem was later found to have duals)
2+9. Retract 9 half-moves for #1 (Proca retractor, AntiCirce Cheylan)
[8/p1B5/3nb3/8/6pp/qr5k/5r2/4K3]