'King's Knight Openings C40-49'
Here are some chess puzzles from the Four Knights (ECO C49).

1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Bb4
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) 
Viktor Cherednichenko vs Sergei Bondarenko, Voronezh, 2004
1rbb2k1/3pRrpp/p2p4/1p6/5B2/8/PPP2PPP/R5K1 w - - 1 0
[ Re8+ Rf8 Rxf8+ Kxf8 Bxd6+ ]
b) 
Aleksey Khomenko vs Vadim Zainetdinov, Ufa, 2012
r4rk1/ppp2pp1/2p1q2p/8/4P1RQ/3P3P/2P3P1/5R1K w - - 1 0
[ Rf6 Qd7 Rxg7+ Kxg7 Qxh6+ Kg8 ]
c) 
Shahram Salari vs Kin Keuw Chek, Shiraz, 2013
1r1qr1k1/p1p2ppp/3p1n2/2p1p1B1/4P2N/2PPQ3/b1P2PPP/1R3RK1 w - - 1 0
[ Rxb8 Qxb8 Bxf6 gxf6 Nf5 Re6 Qg3+ ]
d) 
Anastasya Paramzina vs Diana-Alexandra Ciungan, Batumi, 2014
r1b2rk1/pp3ppp/2p2n2/1B2N3/3P1p2/q1P2Q2/P1P2PPP/R3R1K1 w - - 1 0
[ Nc4 Bg4 Qd3 Bf5 Qd2 Ne4 Rxe4 ]
e) 
Alexander Zhiliaev vs Evgeny Gafner, Orsk, 2001
r1bqr1k1/pp3pp1/2pp2np/8/2BQn3/B1P2N2/P1P2PPP/R3R1K1 w - - 1 0
[ Rxe4 Rxe4 Qxe4 d5 Qd4 ]
1d) 
Anastasya Paramzina vs Diana-Alexandra Ciungan
Four Knights (C49) puzzles, pt. ii.
The color disk on the diagram indicates who moves first.
a) 
Erhan Tanrikulu vs Nevzat Ozenmis, Yalova, 2005
r1b2r2/ppq2pkp/3pnn2/b1p1p3/B3P2N/2PP1Q2/PP3PPP/R1B2RK1 w - - 1 0
[ Bh6+ if Kg8 Bxf8 Kxf8 Qxf6 or if Kxh6 Qxf6+ Kh5 Bd1# ]
b) 
Cvetko Petrovcic vs Alberto Pecchiari, Nova Gorica, 2008
r1b2rk1/ppp2pp1/2np1q1p/1B2p3/1b1PP3/2N2N2/PPP2PPP/R2Q1RK1 w - - 1 0
[ Nd5 Qd8 Bxc6 bxc6 Nxb4 ]
c) 
Tommi Franssila vs Joose Norri, Finland, 2012
r4r1k/ppp2p1p/3p1pnQ/4p3/4PPqN/2PP4/P1P3PP/R4RK1 w - - 1 0
[ Nf5 Rg8 h3 if Qe2 Rf2 ]
d) 
Yakov Meister vs Igor Kurnosov, Satka, 2008
r3r1k1/ppp2ppp/2pb4/8/q7/2PP1QPb/PP2BP1P/R1B1R1K1 b - - 0 1
[ ...Bg4 Qxg4 Qxg4 Bxg4 Rxe1+ ]
e) 
Black mates in 2.
Aneta Zitna vs Magdalena Miturova, Teplice, 2012
5rk1/Qpp3p1/2p4p/3qp3/5n2/P1PP1rB1/2P2P1P/3RR1K1 b - - 0 1
[ ...Rxg3+ ]
2c) 
Tommi Franssila vs Joose Norri
Four Knights (C49) puzzles, pt. iii.
The color disk on the diagram indicates who moves first.
a) 
Black mates in 3.
Camile Chiodini vs Margarita Riabinina, Blumenau, 2013
r5k1/p1p3p1/2pp2rp/4pP1n/1P5q/P2P1P1P/2PBNb1K/R2Q1R2 b - - 0 1
[ ...Rg3 Nxg3 Qxg3+ ]
b) 
Jiri Malivanek vs Milan Kratochvil, Czech Republic, 2013
r4rk1/2p1qppp/1p2nn2/p2pp3/P3P3/1PPPB2P/2QN1PP1/R4RK1 b - - 0 1
[ ...d4 cxd4 exd4 e5 Nd5 ]
c) 
Alexander Dubinin vs Alexei Bezgodov, Nizhnij Tagil, 2016
r2qr1k1/1p2nppp/4bn2/p2p4/B7/B1PP4/P1PN2PP/R2Q1RK1 b - - 0 1
[ ...b5 if Bxb5 Qb6+ or if Bxe7 Qxe7 Bxb5 Qc5+ ]
3b) 
Jiri Malivanek vs Milan Kratochvil
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