Solutions are between the brackets under each puzzle.
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White to move and win except where noted.
a) Black to move and win. Edson Tsuboi vs Antonio Rocha, Sao Paulo, 1988 2r1rbk1/1bqnn1p1/p2p3p/1p1Ppp2/4P3/BP1B1P1P/P2N2PN/R2QR1K1 b - - 0 1 [ ...Qc3 if Bf1 b4 ]
b) Ekaterina Polovnikova vs Lea Mauko, Szeged, 1994 r1bq1rk1/4bppn/p5np/1pp1P2Q/3N4/1BP4P/PP4P1/RNB1R1K1 w - - 0 1 [ Qxg6 if cxd4 Bxh6 or if c4 Qe4 or if Bg5 Nc6 ]
c) White Mates in 2. Werner Hobusch vs Liebscher, corr., 1984 2bq1rk1/r1p1b1pn/p2pP1Np/1p1B1Q2/4P3/2P4P/PP3PP1/R1B1R1K1 w - - 0 1 [ Qf7+ ]
d) Dragoljub Ciric vs Frans Kuijpers, Amsterdam, 1968 3qr1k1/r4p2/p2p2pQ/2pPn3/b1n1P3/6NP/P5PN/R3RBK1 w - - 0 1 [ Bxc4 if Nxc4 Ng4 Ne5 Nh5 ]
e) Black to move and win. Antonio Medina-Garcia vs Svetozar Gligoric, Palma de Majorca, 1968 2rqr1k1/Q2b2b1/p2p2pp/1p1PppnP/nPp1P3/2P3N1/P2BBPPN/R3R1K1 b - - 0 1 [ ...f4 if Ngf1 Ra8 w/...Re7 ]
C93 Puzzles, Part II. White to move and win except where noted.
a) White Mates in 4. Dimitar Pelitov vs Georgi Daskalov, Bulgaria, 1969 r1q5/2p2k2/p4Bp1/2Nb1N2/p6Q/7P/nn3PP1/R5K1 w - - 0 1 [ Qh7+ w/Qe7+ ]
b) Alexei Suetin vs Eldis Cobo Arteaga, Havana, 1969 r1b1rqn1/3n1pk1/p2p3p/1ppP4/5B2/2PB1N1P/PP1Q2P1/4RRK1 w - - 0 1 [ Bxh6 if Nxh6 Qg5+ w/Rxe8 ]
c) Maia Chiburdanidze vs Zorica Puljek-Salai, Jajce, 1986 2r1r3/1bpq3k/4nPpb/1p1p4/3P2N1/1B1N1PnP/1P4P1/2RQR1K1 w - - 0 1 [ Nde5 if Qd6 Nxh6 ]
d) Thomas Martin vs Thomas Pieper, Germany, 1991 5bk1/2R2p2/6pp/1p2r3/4p3/2P1B2P/1P3PP1/6K1 w - - 0 1 [ Rc8 if g5 b4 ]
e) Black to move and win. Michiel Abeln vs Walter Verdonk, Netherlands, 1994 b2qr1k1/2p2pb1/3p1npp/1P6/1P1NNP2/6P1/1BB3K1/1Q2R3 b - - 0 1 [ ...Nxe4 if Bxe4 Bxd4 Bxd4 Bxe4 w/Qa8 ]
C93 Puzzles, Part III. White to move and win except where noted.
a) Qu Ying vs Daniel Taboas Rodriguez, Sao Lourenco, 1995 4rr2/1bp1qp1k/pn4pp/1p2b3/3P4/1PPQ2NP/P1B2RP1/5RK1 w - - 0 1 [ Rxf7+ Rxf7 Qxg6 w/Rxf7 ]
b) Bjorn Brinck-Claussen vs Frank Vang, Copenhagen, 2002 5r2/1b3p1k/p2p1qpp/1p6/1P1RPn2/P3Q2P/B4PP1/4N1K1 b - - 0 1 [ ...Qxd4 ]
c) Viktor Ciocaltea vs Gildardo Garcia, Havana, 1965 2r3k1/3b2b1/pq1P1rp1/1p6/1P1p3p/3B1Q1P/P2BR1P1/5RK1 w - - 0 1 [ Qd5+ if Kf8 Rxf6+ mates or if Kh8 Rxf6 w/Qf7 ]
d) CDW Jansen vs Rudolf Sevecek, corr., 1968 4r2k/nbp3p1/p6p/1pb2B2/6R1/P1P4P/1PQN1rP1/R1B4K b - - 0 1 [ ...Re1+ if Nf1 Rexf1+ Kh2 Rxc2 or if Kh2 Bd6+ mates ]
e) Black to move and win. Aleksandar Matanovic vs Hans Hecht, Raach, 1969 4r1k1/5pp1/p7/6QP/3q4/P7/6P1/1R5K b - - 0 1 [ ...Re5 ]
C93 Puzzles, Part IV. White to move and win except where noted.
a) Fischer vs Svetozar Gligoric, Rovinj/Zagreb, 1970 r1nq1n2/3b2k1/p2p1p1R/Pp1Pp1p1/1Pp1P1P1/2P1BPN1/2BQ2K1/8 w - - 0 1 [ Rxf6 ]
b) Black to move and win. Jerzy Konikowski vs Mitchell, corr., 1973 r4b2/5kp1/5p1p/N7/2pP4/2n4P/5PP1/R1B2K2 b - - 0 1 [ ...Bb4 if Nb3 Ra2 ]
c) Heikki Westerinen vs Steven Odendahl, London, 1979 2r1r1k1/q2b1pb1/p2P2pp/1pN1p3/3nBn2/1P3N1P/PB1Q1PP1/2R1R1K1 w - - 0 1 [ Bxd4 ]
d) Black to move and win. V Bagusis vs Ignas Zalys, Montreal, 1984 4r1k1/1bp3p1/3b2r1/1p3p1q/3Q3N/1P2p2P/P1B2PP1/3R2RK b - - 0 1 [ ...Rg4 ]
e) Aleksander Sznapik vs Pawel Stempin, Wroclaw, 1987 3r1b2/3q1ppk/7p/3N1P2/2b1P3/3p1QRP/1B4PK/8 w - - 0 1 [ Nf6+ if gxf6 Qg4 mates ]