Here are some chess puzzles from the Bogo-Indian Defense (ECO E11).



1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+



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)
Frank Marshall vs Vladimir Petrov, Hamburg, 1930
r4r1k/pb2qp1p/1p3p2/2np4/1Q6/3BPN2/PP3PPP/2R2RK1 w - - 0 1
[ Rxc5 if bxc5 or Qxc5 Qh4 ]

b)
Gert-Jan De Boer vs Ingo Meyer, Groningen, 1989
r1b2rk1/ppp1qppp/2npp3/8/1bPP4/1N3NP1/PP2PPBP/R2Q1RK1 w - - 0 1
[ a3 if Ba5 d5 ]

c)
Bent Christensen vs Jesper Bojsen, Denmark, 1991
rn3rk1/pb3ppp/1p1qp3/1B1nN1B1/3P4/P7/1P2QPPP/2RR2K1 w - - 0 1
[ Nc4 if Qc7 Na5 ]

d)
Gennadi Sosonko vs Rudy Douven, Netherlands, 1991
r1b2rk1/pppnq1pp/3pp3/8/2PN4/2R3P1/PP2PPBP/3QK2R w K - 0 1
[ Nxe6 ]

e)
Evelien Pater vs S Bensouda, Warsaw, 1991
r4rk1/1bppqppp/ppnb1n2/4p3/2PP4/P1N1PN2/1PQB1PPP/1BR1K2R w K - 0 1
[ Nd5 ]

Recent E11 Games


E11 Puzzles, Part II. White to move and win except where noted.
a)
Gennady Smougalev vs Igor Moizhess, Moscow, 1995
r2qnr1k/pb1n2pp/1p2Qb2/2pp4/3P4/P2B1N2/1P1N1PPP/R1B1R1K1 w - - 0 1
[ Qh3 if h6 Qf5 ]

b)
Aleksander Wojtkiewicz vs Edoardo Daverio, Neuchatel, 1996
r4rk1/2pq1pp1/1pbbp1np/p2n4/2NP4/P4NP1/1PQBPPBP/R3R1K1 w - - 0 1
[ e4 ]

c)
Stephan Niewerth vs Malte Bolczek, Oberhof, 1998
r1b2rk1/1pp1qpp1/5n1p/p1n1p1N1/2P5/P1N3P1/1PQ1PPBP/R4RK1 w - - 0 1
[ Nd5 ]

d)
Julio Hernando Rodrigo vs Miquel Serrano, Sitges, 2000
r5k1/1b2qppp/1Q1ppn2/8/2rPP3/R4NP1/5PBP/5RK1 w - - 0 1
[ Rxa8+ if Bxa8 Qa6 ]

e)
Hans-Werner Ackermann vs Sarah Brethauer, Bad Zwesten, 2002
rn1qnr2/pbpp1pk1/1p2p3/4P1Np/2PP3P/P2B4/1PQ2PP1/R3K2R w KQ - 0 1
[ Be4 if Nc6 Bxc6 Bxc6 Qh7# ]

E11 Puzzles, Part III. White to move and win except where noted.
a)
Igor Zakharevich vs Ivan Akimov, St. Petersburg, 2002
r1b2rk1/ppppqppp/8/3P4/1n2n3/2B2NP1/PP2PP1P/2RQKB1R w K - 0 1
[ d6 if Qxd6 Qxd6 w/Bxb4 ]

b)
Joern Schulz vs Bernd Schulenburg, Germany, 2003
rn1q3r/1b3p1p/pppbk1p1/3p3P/1P1P2P1/P2B1N2/2QB1P2/R3K2R w KQ - 0 1
[ Bf5+ Ke7 Bg5+ if f6 Qe2+ mates ]

c)
Vera Nebolsina vs Margarita Cherepovskaya, Dagomys, 2004
r4rk1/1b1nqppp/pp1p4/1B1P4/3NP3/R7/1P3PPP/3Q1RK1 w - - 0 1
[ Nf5 if Qd8 Bxd7 Qxd7 Qg4 ]

d)
Michel Saucey vs Jean-Paul Bonneville, Saint Chely d'Aubrac, 2007
3r1rk1/pb2qp1p/2npp2Q/2p2p2/2P5/5NP1/PP2PPBP/3R1RK1 w - - 0 1
[ Ng5 f6 Nxe6 if Qxe6 Bd5 ]

e)
Lucian Filip vs Mario Olea Perez, Oviedo, 2008
rnq2rk1/pb2bppp/1p2p3/3p3n/3P4/2NN2P1/PPQBPPBP/2RR2K1 w - - 0 1
[ Nxd5 if exd5 Qxc8 ]

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