## See 3 moves ahead from wtharvey.com

### Here are some chess puzzles from the Benoni, Classical, 9.O-O (ECO A73).1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Be2 O-O 9.0-0

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)
Torben Sorensen vs Dennis Rej, Haderslev, 1981
r3nrk1/3bq1bp/3p2p1/N1pP4/1p1nP3/3B4/1P1Q1BPP/R2NR2K b - - 0 1
[ ...Rxa5 Rxa5 Nb3 ]

b)
Black mates in 4.
Franz Hager vs Jozsef Palkovi, Werfen, 1989
4r2k/6bp/1R1p2p1/2pN4/4nPq1/4B2b/1PQ4P/3R3K b - - 0 1
[ ...Nf2+ if Qxf2 Qxd1+ Qg1 Qf3+ ]

c)
Patrick Lauferon vs Adam Szieberth, Budapest, 1992
r1b1n1k1/pp5p/n4r2/2pP2p1/3b1pNq/2N2P2/PP4PP/R1BQRB1K b - - 0 1
[ ...Bxg4 if fxg4 Qxh2+ mates ]

d)
Barot Casany vs Molina Mansilla, Catalunia, 1993
rn1qr1k1/1p3p1p/p2p2p1/2pP3n/P2bP3/2NQ1P2/1P1N2PP/R1B2R1K b - - 0 1
[ ...Ng3+ hxg3 Qg5 ]

1c)

A73 Puzzles, Part II.
The color disk on the diagram indicates who moves first.
a)
Giovanni Dallaglio vs Massimo Zammarchi, Bozen, 1998
6k1/2Br1p1p/R2P2p1/2p1r2n/1pBb4/8/1P4PP/5R1K w - - 0 1
[ g4 (if Bb5 Ng3+ mates) Ng7 Bb5 ]

b)
Ariel Marichal vs Omar Almeida, Cuba, 2000
4r1k1/1p5p/pN1p1np1/P1pP3n/3b4/4NQPq/1P5P/4RR1K b - - 0 1
[ ...Rxe3 if Rxe3 Nxg3+ ]

c)
Mikhail Ivanov vs Romuald Mainka, Bad Woerishofen, 2000
r3r1k1/2n2pb1/pp3npp/2pPP3/P1B3qB/2N5/1P4PP/R2QR1K1 w - - 0 1
[ Bxf6 if Qxc4 Re4 ]

d)
Anders Nilsson vs Bent Pedersen, Copenhagen, 2005
r3r3/3nn1bk/pqNpp1pp/1ppP4/P4P2/2N2QB1/1P2R1PP/5R1K w - - 0 1
[ Nxe7 if Rxe7 dxe6 ]

2d)
Anders Nilsson vs Bent Pedersen

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