Here are some chess puzzles from the games of Nikolai Nikolaevich Rjumin. White to move and win except where noted.
Solutions are between the brackets under each puzzle. Drag your cursor from one bracket to the other.
a) Rjumin vs Vladimir Makogonov, Leningrad, 1934 8/2rk1p1r/2N1pP1p/1QnpP1p1/3pq1P1/8/PPP4R/2K4R w - - 0 1 [ Na7+ Kd8 Qb8+ Kd7 Qf8 Rxa7 Qe7+ ]
b) Rjumin vs Ilya Rabinovich, Moscow, 1935 4r1k1/2q4p/pp1Rb1nQ/5p2/2P1p3/1BB5/PP4PP/7K w - - 0 1 [ Rxe6 if Rxe6 c5 ]
c) White Mates in 4. Rjumin vs Peter Romanovsky, Moscow, 1935 4rr1k/pbp1q1pp/1p6/3Pp3/2P1P3/P2B1pQ1/1B5R/6RK w - - 0 1 [ Qg6 h6 Rxh6+ w/Bxe5+ ]
d) Rjumin vs Sergey Belavenets, URS, 1935 1rrnbbk1/pp1q3p/1n2pPp1/3pP1Q1/3P2N1/1P4P1/PB1N2B1/2R2RK1 w - - 0 1 [ f7+ if Nxf7 Nf6+ w/Qh4 ]
e) Black to move and win. Nikolay Sorokin vs Rjumin, Moscow, 1931 1k6/4R3/1pb5/p7/P1Pq2P1/3r1N1p/5R1P/5Q1K b - - 0 1 [ ...Rxf3 if Rxf3 Bxf3+ mates or if Kg1 Qxg4+ mates ]
f) Black Mates in 5. Slonim vs Rjumin, Moscow, 1932 1rb1r1k1/p1p2ppp/5n2/2pP4/5P2/2QB4/qNP3PP/2KRB2R b - - 0 1 [ ...Re2 Bxe2 Ne4 ]
g) Black to move and win. Isaak Mazel vs Rjumin, Leningrad, 1934 2rr3k/pp4bp/3P1p2/5N2/2P1p3/q2nP3/Q4PPP/BKRR4 b - - 0 1 [ ...Qb4+ if Bb2 Rc5 ]