"Tactics in the Queen's Gambit" by wtharvey.com
Here are some chess puzzles from the Nimzo-Indian, Three Knights (ECO E21).
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Nf3
Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.
White to move and win except where noted.
a)
Ignacio Fernandez vs Fernandez Diez, Asturia, 2000
r2q1r1k/p2n1ppp/1p2pn2/1Bp3B1/Q2P4/4PP2/PP3P1P/R3K1R1 w - - 0 1
[ Bxd7 Qxd7 Bxf6 if Qxa4 Bxg7+ mates ]
b)
Sven Hamann vs Frank Hermannsdoerfer, Germany, 2000
rn1q1rk1/p1ppb1pp/1p6/3Ppp2/2P5/6P1/PP2PPNP/R1BQ1RK1 w - - 0 1
[ d6 if Bxd6 Qd5+ ]
c)
Thomas Maes vs Stephane Vaillant, Le Touquet, 2005
r2qk2r/p2b1p2/1p1p3p/n1pPp1pn/2P5/2Q1P1B1/PP1N1PPP/2KR1B1R w k - 0 1
[ Bxe5 if dxe5 Qxe5+ or if f6 Bxd6 ]
d)
Soto Larrea vs Erich Brunner, Mexico City, 1932
r3nrk1/2p2ppp/bp1pq3/p4N2/2P1P3/P1B1QP2/1P4PP/4RRK1 w - - 0 1
[ Bxg7 if Nxg7 Qg5 Qe5 f4 Qxb2 e5 mates ]
e)
White mates in 5.
Kari Sorri vs Jan Johansson, Helsinki, 1991
4kr1r/pb1p1p1p/np2pQ2/2qP4/2PN3P/2PB1R2/P4PP1/R4K2 w - - 0 1
[ Nf5 if Rfg8 d6 ]
1d)
Soto Larrea vs Erich Brunner
E21 Puzzles, Part II.
Black to move and win except where noted.
a)
Laszlo Sapi vs Peter Dely, Budapest, 1964
r3k2r/pbpp1p1p/1p6/2n5/1n3B2/5NP1/PP2PP1P/3RKB1R b Kkq - 0 1
[ ...Ncd3+ Kd2 Nxf2 ]
b)
Black mates in 4.
Johanna Paasikangas-T vs Gediminas Rastenis, Joensuu, 1989
r5k1/pbpn2pp/1p1pp1r1/5p2/1PPP3q/P3P1P1/3Q1P1P/R1BB1RK1 b - - 0 1
[ ...Qxh2 Kxh2 Rh6+ ]
c)
Brunet Martinez vs Villa Izquierdo, Tarrega, 1995
3r1rk1/p1p2pp1/1pn1pq1p/8/1b1P1P2/2PQB1P1/P4PBP/R3K2R b - - 0 1
[ ...Nxd4 if Bxd4 Rxd4 or if Bd2 Nb3 ]
d)
Siegfried Volk vs Volker Seifert, Crailsheim, 2000
r5k1/pbpn2pp/1p1pp1r1/5pn1/1PPP3q/P2BPP2/2QNR1PP/R1B3K1 b - - 0 1
[ ...Bxf3 if Nxf3 Nxf3+ mates or if g3 Nh3+ ]
e)
Afag Khudaverdieva vs Zeinab Mamedjarova, Baku, 2002
r2q1rk1/pbpn2pp/1p1pp3/5p2/2PP1Q2/P2BPN2/1P3PPP/R3K2R b - - 0 1
[ ...e5 dxe5 dxe5 Qg3 e4 ]
2e)
Afag Khudaverdieva vs Zeinab Mamedjarova
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