November 1998
R280 - Sergei Tkachenko The Problemist, Nov. 1998
4+5. Retract 1 move and then mate in 4
R281 - Unto Heinonen The Problemist, Nov. 1998
15+13. Position after Black's 24th. Game score?
![[4k2r/3p2p1/P2P2P1/6K1/7p/888]](R280.gif)
![[Q1b1krB1/2B5/R6n/3N1RN1/pppppppp/P1r4P/P2PPP1P/3K4]](R281.gif)
