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Here are some chess puzzles from Alekhine's Defense, Modern (ECO B04).



1.e4 Nf6 2.e5 Nd5 3.d4 d6 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)
Hans Beijar vs Mats Eriksson, Sweden, 1980
rnbqkb1r/1pp1p2p/1n1pPpp1/p7/3P4/1B3N2/PPP2PPP/RNBQK2R w KQkq - 0 1
[ Ng5 if fxg5 Qf3 ]

b)
Winter vs Muller, corr., 1986
rn1q1b1r/pp2pkpp/1npp4/3Pp2P/2P3P1/3B4/PP3P2/RNBQK2R w - - 0 1
[ Bg6+ if hxg6 hxg6+ Kxg6 Qc2 mates ]

c)
Frank Witthus vs Reinhard Geisler, Detmold, 1988
r1b2k1r/ppp2pbp/1nn1pNp1/4q3/5Q2/1B6/PPPB1PPP/RN2K2R w - - 0 1
[ Qxe5 if Nxe5 Bb4+ mates ]

d)
Stefano La Fontana vs Moreno Bauli, Lombardia, 1991
r4rk1/pp1nppbp/2np2p1/8/2PP2b1/qPN1BN2/4BPPP/2RQ1RK1 w - - 0 1
[ Ra1 if Qb4 Nd5 ]

e)
Winter vs Peter Hegner, corr., 1985
r2q1rk1/pp2bp1p/2p3pQ/3pPbB1/7P/3B4/PPP2PP1/2KR3R w - - 0 1
[ Bxf5 if gxf5 Bf6 ]

Recent B04 Games


B04 Puzzles, Part II. Black to move and win except where noted.
a)
Roland Schmaltz vs Uwe Braeuner, Baden-Baden, 1990
1r1q1rk1/p3ppbp/Q1n3p1/n1Pp4/3P2b1/1PN1BN2/P3BPPP/R4RK1 b - - 0 1
[ ...Nb4 if Qxa7 Rb7 ]

b)
Didier Comes vs Bruno Bonnin, Paris, 2001
r2qr1k1/pp1bppbp/1nn3pB/3p4/3P1Q1N/1BP5/PP3PPP/RN3RK1 b - - 0 1
[ ...e5 if dxe5 Bxe5 ]

c)
Shyamol Dutta vs Bernard Cafferty, London, 1994
rnbq1rk1/ppn1ppbp/6p1/4N3/2PB4/2N4P/PP2BPP1/R2Q1RK1 b - - 0 1
[ ...Ne6 if Nd5 Nxd4 Qxd4 e6 ]

d)
Black Mates in 3. Jana Pirklova va M Rebicek, Pizen, 1995
1k1r1r2/ppp1b1pp/4Q3/1Pq1P3/2n5/P1P5/5PPP/RNB2RK1 b - - 0 1
[ ...Qxf2+ ]

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