Ongoing series from wtharvey.com

Here are some chess puzzles from the games of Julio Granda Zuniga. The color disk on the diagram indicates who moves first.

Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.

a)
Granda Zuniga vs Alex Kuznecov, Buenos Aires, 1982
2r3k1/3q2bp/p1Rp4/Pp1P2p1/1P2Pp2/2B2Q1P/6P1/7K w - - 1 0
[ Bxg7 if Rxc6 dxc6 Qxg7 e5 Qxe5 c7 ]

b)
Granda Zuniga vs Richard Lutz, Rio de Janeiro, 1982
rn2r1kb/4pp1p/p2pPnpB/q2b2N1/2p2P2/4Q2P/PpP1B1P1/1K1R3R w - - 1 0
[ Rxd5 if Qxd5 Bf3 or if Nxd5 exf7# ]

c)
White Mates in 5.
Granda Zuniga vs Francisco Batres, Dubai, 1986
2r2k2/5pbQ/pp6/3Pp2R/n1n1B3/1N2q3/1PP4P/5R1K w - - 1 0
[ Rxf7+ Kxf7 Rf5+ ]

d)
White Mates in 4.
Granda Zuniga vs Roberto Cifuentes Parada, Buenos Aires, 1988
1r1r4/4Q1pp/1kb1B3/p3R1P1/3P1q2/2P5/P7/K2R4 w - - 1 0
[ Rb1+ if Ka6 Rxa5+ or if Bb5 Rexb5+ ]

e)
Granda Zuniga vs Manuel Rivas Pastor, Habana, 1988
1q4k1/1p3p1p/r1n3p1/1N1r4/P7/2Q4P/5PP1/R3R1K1 w - - 1 0
[ Nc7 ]

Granda Zuniga Puzzles, Part II. The color disk on the diagram indicates who moves first.
a)
Granda Zuniga vs Claudia Amura, Buenos Aires, 1991
3r1q1k/p2nR3/1pbPBp1p/2p3p1/8/2N3N1/PP4PP/5RK1 w - - 1 0
[ Nh5 a6 Bxd7 Rxd7 Rxf6 ]

b)
Granda Zuniga vs Lars Schandorff, Manila, 1992
r2r2k1/1R3pbp/2pB2p1/p1P1P3/5Q2/6P1/q4PbP/4R1K1 w - - 1 0
[ e6 if f6 Bf8 or if f5 Be5 ]

c)
Granda Zuniga vs Pal Benko, Aruba, 1992
8/3R1Npk/4p2p/6P1/pp5P/nP2P3/r4P2/6K1 w - - 1 0
[ h5 if hxg5 Rd8 mates ]

d)
White Mates in 4.
Granda Zuniga vs Rodrigo Disconzi Da Silva, Mar del Plata, 1993
3q2k1/3b3p/2p5/3pP1pB/1p1Pp3/b3P1BP/6P1/5QK1 w - - 1 0
[ Qf7+ Kh8 e6 ]

e)
Granda Zuniga vs Pedro Donoso Velasco, Villa Gesell, 1994
3r2k1/p2r1p1p/qp2n1p1/6P1/3pBP2/1R4P1/PP1QP1K1/2R5 w - - 1 0
[ Ra3 if Qb5 Bc6 ]

Granda Zuniga Puzzles, Part III. The color disk on the diagram indicates who moves first.
a)
Granda Zuniga vs Rafael Rodriguez Lopez, Cordoba, 1995
rq3k2/1b1R1p1p/1p2pp2/1p6/3N2Q1/bP2P3/P4PPP/6K1 w - - 1 0
[ Nxe6+ Ke8 Ng7+ Kf8 Nh5 Be7 Qg7+ Ke8 Nxf6+ ]

b)
White Mates in 4.
Granda Zuniga vs Ariel Sorin, Buenos Aires, 1996
5rk1/2p3pR/1p1n4/p3R3/3Q1r2/PP2P3/1KB2q1P/8 w - - 1 0
[ Rxg7+ Kxg7 Re7+ Kh6 Rh7+ ]

c)
White Mates in 5.
Granda Zuniga vs Egio Righi, Bled, 2002
3r4/kbpp3p/p5nr/2PP3q/Q1P2ppP/2R3P1/P2N1PN1/1R4K1 w - - 1 0
[ Rxb7+ Kxb7 Qb4+ ]

d)
Granda Zuniga vs Ruben Felgaer, Villa Martelli, 2005
2r2rk1/5pp1/1bp2n2/p1N1p1q1/PPB1P1n1/7Q/5PP1/2RRB1K1 w - - 1 0
[ Ne6 if fxe6 Bxd6+ Rf7 Bxc8 ]

e)
White Mates in 2.
Granda Zuniga vs Arturo Lopez Heras, Benidorm, 2008
1n3r1k/bppn2pp/8/2P5/1P1p2PN/1B3P2/4R3/2B3K1 w - - 1 0
[ Ng6+ ]

See 2, 3 or 4 moves ahead - books from the wtharvey.com library

Granda Zuniga Puzzles, Part IV.
The color disk on the diagram indicates who moves first.
a)
White Mates in 4.
Granda Zuniga vs Karen Movsziszian, Benidorm, 2008
4r3/pb1rn2k/5BRP/2pp1p2/1p6/1P6/P1P3B1/5R1K w - - 1 0
[ Rg7+ Kh8 Rxe7+ ]

b)
Granda Zuniga vs Andre Diamant, Sao Paulo, 2009
3r1bk1/R7/1p2RPp1/2pP4/2n5/P6P/6K1/8 w - - 1 0
[ Re8 if Rxe8 f7+ ]

c)
Julio Granda Zuniga vs Alejandro Moreno, Linares, 2013
1r1n4/2kqb1Q1/7p/2ppPP2/8/4P2P/6P1/B2R2K1 w - - 1 0
[ e6 Nxe6 fxe6 Qxe6 Be5+ Kc8 Qh8+ ]

d)
Black mates in 5.
Nikolai Ninov vs Julio Granda Zuniga, Llucmajor, 2014
8/2P2pk1/p3pp2/1p6/1P3qP1/P3r2p/3Q3P/2R3K1 b - - 0 1
[ ...Rg3+ hxg3 Qxd2 ]

e)
Julio Granda Zuniga vs Alexandre Savalle, Erts, 2014
r1b2rk1/ppn1qpbp/2p1p1p1/N7/1P1P4/P5P1/1BQ1PPBP/2RR2K1 w - - 1 0
[ Nxc6 if bxc6 Qxc6 or if Qd6 Nxa7 ]

Granda Zuniga Puzzles, Part V.
The color disk on the diagram indicates who moves first.
a)
Carlos Barrero Garcia vs Julio Granda Zuniga, Linares, 2014
6k1/4qp2/1p2P3/1P1Q3p/2n3p1/P1p1P1P1/4PK1P/5R2 b - - 0 1
[ ...Qf6+ Kg1 Qxf1+ Kxf1 Nxe3+ ]

b)
Felix Klein vs Julio Granda Zuniga, Douglas, 2014
b4r2/p6k/3pnrp1/N1p1p1bp/qPQ1P3/P1BR1P1P/6PN/3R2K1 b - - 0 1
[ ...Be3+ if Kh1 Nf4 ]

c)
Black mates in 3.
Miguel Rios Garcia vs Julio Granda Zuniga, Benasque, 2015
3r2k1/1q3ppp/p3p3/n7/Np1Rn3/1P4P1/P3Q2P/2R4K b - - 0 1
[ ...Nf2+ Kg1 Nh3+ ]

d)
Black mates in 4.
Ivan Valles Moreno vs Julio Granda Zuniga, Madrid, 2015
1rr3k1/3b1p2/3p4/4n1PR/Np2PQ2/1P6/PKPR2P1/6q1 b - - 0 1
[ ...Rxc2+ if Kxc2 Rc8+ or if Rxc2 Nd3# ]

e)
Black mates in 3.
Allan Stig Rasmussen vs Julio Granda Zuniga, Kollafjord, 2017
8/p4ppk/1b1p2q1/3P2P1/1p3PQ1/2N3pP/1P6/2K2R2 b - - 0 1
[ 1...Be3+ ]

f)
Patrick Aizpurua vs Julio Granda Zuniga, Panama, 2017
2rr2k1/4qpp1/8/p1pPnb1p/Pp2B2P/1P2P3/1BQ2P2/2R1K2R b K - 0 1
[ 1...Nf3+ ]

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