Here are some chess puzzles from the games of Alexander Konstantinopolsky. Black to move and win except where noted.
Solutions are between the brackets under each puzzle. Drag your mouse from one bracket to the other.
a) Vladimir Alatortsev vs Konstantinopolsky, Tbilisi, 1937 r2r2k1/5qpp/8/4p3/P1Q5/4P1P1/7P/R1R3K1 b - - 0 1 [ ...Rd1+ ]
b) Iosif Pogrebyssky vs Konstantinopolsky, Kiev, 1940 4r2k/3brp2/1Rpb1q2/3p2n1/3P3p/2NBP2P/5QP1/1R3NK1 b - - 0 1 [ ...Nxh3+ w/...Rg8+ ]
c) Black Mates in 3. Evgeny Zagorjansky vs Konstantinopolsky, Sverdlovsk, 1943 8/4R1pk/p5p1/8/1pB1n1b1/1P2b1P1/P4r1P/5R1K b - - 0 1 [ ...Bf3+ Kg1 Rg2+ Kh1 Rg1# ]
d) Black Mates in 5. Goldberg vs Konstantinopolsky, Moscow, 1945 7k/6p1/3r3p/3Np3/4Pp1q/1r5P/5RBK/5R2 b - - 0 1 [ ...Rxh3+ Bxh3 Qg3+ Kh1 Qxh3+ Kg1 Rg6+ Rg2 Rxg2# ]
e) Black Mates in 2. Boris Ratner vs Konstantinopolsky, Moscow, 1945 1r4k1/3b2pp/1b1pP2r/pp1P4/4q3/8/PP4RP/2Q2R1K b - - 0 1 [ ...Rxh2+ Kxh2 Qh4# ]