Tactics you can use from wtharvey.com
Here are some chess puzzles from the Benoni Defense (ECO A56).

1.d4 Nf6 2.c4 c5
Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.
The color disk on the diagram indicates who moves first.
a) 
Maxim Sorokin vs Hameed Mansour Ali Kadhi, Bratislava, 1993
r4r1k/p2p2bp/nq1p1pp1/2pQP3/8/2B2P2/PP2N1PP/R4RK1 w - - 1 0
[ exf6 if Bh6 Qg5 or if Bxf6 Bxf6+ Rxf6 Qxa8+ ]
b) 
Volker Weiler vs Juan Anton Veiga, Eisenberg, 1993
r1q2rk1/pp2ppbp/3p2p1/8/1PP1P1n1/PnN4Q/3B1PPP/2R1NRK1 w - - 1 0
[ Nd5 if Nxf2 Qxb3 Qd7 Rxf2 or if Qd8 Qxb3 ]
c) 
White mates in 5.
P McGinnis vs F Delphine, Sacramento, 1993
rn1q1rk1/1pnbb1p1/p2p1pp1/2pPpP2/2P1P3/2N4R/PP4PP/R1BQN1K1 w - - 1 0
[ fxg6 if Be8 Rh8+ or if Bxh3 Qh5 ]
d) 
White mates in 5.
Holger Ellers vs Sascha Hokamp, NRW, 1996
1r1qr2k/p1n1bp1p/3p1p1B/1ppPn2Q/2P1N3/P2B4/1P4PP/R4RK1 w - - 1 0
[ Ng5 if Kg8 Bg7 Kxg7 Qxh7+ or if fxg5 Bg7+ Kxg7 Qxh7+ ]
e) 
White mates in 5.
Guido Muessig vs Maik Naundorf, Hagen, 1999
r1b2r1k/pp1pp2p/n6P/2pP2R1/2P1Q3/8/P3BPP1/q1BK4 w - - 1 0
[ Bd3 Rf7 Qg4 Rf8 Rg7 ]
1e) 
mate in 5
Guido Muessig vs Maik Naundorf
Puzzles from the Benoni Defense (A56), pt. ii.
The color disk on the diagram indicates who moves first.
a) 
Manfred Tobisch vs Daniel Ertl, Germany, 1999
1nq2rk1/4bppp/rpP1p3/pN1pN3/3Pn3/P7/1PQ2PPP/R1B1K2R w KQ - 1 0
[ c7 Nd7 Nc6 if Qe8 c8/Q or if Bf6 Nca7 ]
b) 
Edward Pela vs Markus Dillmann, Woerrstadt, 1999
r4rk1/pp1b1ppp/4p3/8/1bPq2n1/2N5/PPQBBPPP/R4RK1 w - - 1 0
[ Rad1 if Bc6 Bc1 Qc5 Bxg4 or if Nf6 Bg5 ]
c) 
Eduard Szirmai vs Karl Barczyszyn, Zalakaros, 1999
3rrbk1/1pqb1ppp/2n1pn2/1pp3N1/2P5/1P2P3/PB2QPPP/1B1R1RK1 w - - 1 0
[ Bxf6 if g6 or gxf6 Qh5 ]
d) 
Norbert Kienel vs Katharina Prietz, Bad Homburg, 2000
rnb3kr/1pb3pp/pq1p1n2/2p3N1/4P3/2N5/PP3PPP/R1BQ1RK1 w - - 1 0
[ Nd5 if Nxd5 Qxd5+ Kf8 Qf7# or if Qa5 Nxf6+ Kf8 Qd5 ]
e) 
Nguyen Hien Le vs Quoc Huu Che, Da Nang, 2006
r2qkb1r/pp2pppp/8/5b2/4n2Q/2P1P3/P2B1PPP/R2K1BNR w kq - 1 0
[ Bb5+ Bd7 Bxd7+ Qxd7 Qxe4 ]
2e) 
Nguyen Hien Le vs Quoc Huu Che
Puzzles from the Benoni Defense (A56), pt. iii.
The color disk on the diagram indicates who moves first.
a) 
White mates in 3.
Pawel Traczyk vs Grzegorz Czuraj, Milanowek, 2007
r1b1r1k1/1p3Npp/p2P1n2/q1pQ4/2P5/2N3B1/PP2B1PP/5RK1 w - - 1 0
[ Nh6+ Kh8 Qg8+ ]
b) 
Schilly vs Nekrassova, Berlin, 2007
r5k1/pp2ppbp/5np1/2Nr2B1/1P1q4/P4Q2/5PPP/1R3RK1 w - - 1 0
[ Bxf6 if Bxf6 Rbd1 ]
c) 
Andrei Anufriev vs Timofei Kaigorodov, Novosibirsk, 2007
r1bq1rk1/p2nbppp/1p6/1BppN3/3P2Q1/4P3/PP3PPP/R1B2RK1 w - - 1 0
[ Bxd7 f5 Qf3 Bxd7 Qxd5+ Kh8 Nxd7 ]
d) 
Natalia Andrea Aguilar vs Selene Galvis, Cali, 2012
r2q1rk1/1b1pbppp/ppn1pn2/2p5/2PP4/1PN1PN2/PB2BPPP/R2Q1RK1 w - - 1 0
[ d5 exd5 cxd5 if Nb8 d6 ]
e) 
White mates in 2.
Iulian Baltag vs Pavel Vavric, Kishinev, 2012
r2qnrk1/pp4p1/3p1pQ1/2pPnPpB/2P1p3/8/PP3PP1/R1B1K2R w KQ - 1 0
[ Qh7+ Kxh7 Bf7# ]
3c) 
Andrei Anufriev vs Timofei Kaigorodov
Puzzles from the Benoni Defense (A56), pt. iv.
The color disk on the diagram indicates who moves first.
a) 
Utut Adianto vs Holger Rasch, Biel, 2013
2rr2k1/pbqnpp1p/1p1p2p1/8/2PN2B1/2Q1P3/PP3PPP/2RR2K1 w - - 1 0
[ Ne6 ]
b) 
Gonzalo Rojo vs Hernan Calvet, Internet, 2020
r4rk1/1p1b1ppp/p3pn2/q1b5/P1Q5/2N1P3/1P1BBPPP/R2R2K1 w - - 1 0
[ Ne4 ]
c) 
Walter Oswaldo Cruz vs Ludwig Engels, Rio de Janeiro, 1952
1rbqnrk1/3nbppp/3p4/1NpPp3/4PP2/3Q2P1/PP2N1BP/R1B2RK1 b - - 0 1
[ ...c4 Qxc4 Qb6+ Nbd4 Ba6 Qc6 exd4 Rf2 d3 ]
d) 
N Crabb vs Luc Winants, Ostend, 1987
r2r2k1/pb1qbppp/1p2nn2/3p1Q2/3N4/1PN1PB2/PB3PPP/2RR2K1 b - - 0 1
[ ...Nxd4 if Qxd7 Nxf3+ ]
e) 
Anderson vs Edwards, USA, 1988
rnb1kb1r/pp1ppppp/8/2pP1n2/2Pq4/1P3P2/P2NP1PP/1RBQKBNR b kq - 0 1
[ ...Qh4+ g3 Nxg3 if Kf2 Nf5+ Kg2 Ne3# ]
4e) 
Anderson vs Edwards
Puzzles from the Benoni Defense (A56), pt. v.
The color disk on the diagram indicates who moves first.
a) 
Black mates in 5.
John Meadows vs Matthew Gross, California, 1992
r6k/pb2brpp/1p3n2/8/8/1QN1PNqn/PP2B1P1/R1B2R1K b - - 0 1
[ ...Ng4 if Qxf7 Bxf3 or if e4 Rxf3 ]
b) 
John Richardson vs Davoud Pira, Cannes, 2000
r1b1q1k1/1p1nb3/p2p2r1/2pP2B1/4P2Q/5N2/PP3PPP/R4RK1 b - - 0 1
[ ...Ne5 if Nxe5 Rxg5 or if Bxe7 Nxf3+ ]
c) 
Jiri Melichar vs M Hacaperka, Klatovy, 2000
rnbqk2r/pp3ppp/4pn2/2b3B1/2PpN3/5N2/PP2PPPP/R2QKB1R b KQkq - 0 1
[ ...Nxe4 Bxd8 Bb4+ Nd2 Bxd2+ Qxd2 Nxd2 Kxd2 Kxd8 ]
d) 
Stanislav Franta vs Dietmar Schubert, Guben, 2003
r4r2/pp2ppkp/3p1np1/q1nN1b2/2PQ4/6P1/PP1NPP1P/R3KB1R b KQ - 0 1
[ ...Nb3 ]
e) 
Santiago Rincon vs Daniel Marcelo De La Mata, Madrid, 2003
r1r3k1/p3qppp/Bp2pn2/3b4/Pn1P1B2/2P2N2/4QPPP/R4RK1 b - - 0 1
[ ...Nxa6 Qxa6 Bc4 ]
5c) 
Jiri Melichar vs M Hacaperka
Puzzles from the Benoni Defense (A56), pt. vi.
The color disk on the diagram indicates who moves first.
a) 
Zeljko Galic vs Dusko Prelevic, Neum, 2004
r1r3k1/1p1bppbp/1q1p1np1/p1n5/2PN4/1PN1PB2/P3QPPP/1RB2RK1 b - - 0 1
[ ...e5 if Ndb5 e4 ]
b) 
Daniel Yarur Elsaca vs Epiro San Martin, Santiago, 2005
rnbqkb1r/pp1p1ppp/4p3/2p5/2PPn3/5P2/PP2P1PP/RNBQKBNR b KQkq - 0 1
[ ...Qh4+ g3 Nxg3 hxg3 Qxh1 ]
c) 
Black mates in 2.
David Toker vs Andreas Bauer, Willingen, 2006
r3r1k1/pp3ppp/1q3n2/2b2b2/1P1n4/P1N5/3BNPPP/2RQKB1R b K - 0 1
[ ...Nf3+ gxf3 Bxf2# ]
d) 
Black mates in 5.
Eduardo Ragolta vs Hector Delgado, Habana, 2009
r1bq3r/1P2kpp1/p2p2p1/2pPn3/B2bPB2/2N3P1/PP5P/R2Q1R1K b - - 0 1
[ ...Rxh2+ Kxh2 Qh8+ if Kg2 Qh3# ]
e) 
Nanko Dobrev vs Angel Angelov, Albena, 2010
r2q1r1k/pp2b1pp/2n2n2/2pp1b2/8/1PN1PN2/PB2BPPP/2RQ1RK1 b - - 0 1
[ ...d4 if exd4 cxd4 Nb1 d3 ]
a) 
Pinatpong Pheephacharakan vs Oscar Arias Cusio
Saint-Paul-Trois-Chateaux, 2013
rnb2rk1/pp1p1ppp/4p3/5q2/1bP1n3/1P1BPN2/PB1N1PPP/2RQK2R b K - 0 1
[ ...Bxd2+ if Qxd2 Nxd2 Bxf5 Nxf3+ ]
6a) 
Pinatpong Pheephacharakan vs Oscar Arias Cusio
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