Here are some chess puzzles from the games of the 2009 US Championship.
White to move and win except where noted.

Solutions are between the brackets under each puzzle.
Drag your cursor from one bracket to the other.

a)
Boris Gulko vs Doug Eckert, Saint Louis, 2009
r1br2k1/pp2pp1p/6p1/2Pn4/3P1B2/q4B2/3Q1PPP/2R2RK1 w - - 0 1
[ Bxd5 if Rxd5 Ra1 Qb3 Rfb1 ]

b)
Black to move and win. Sabina-Francesca Foisor vs Alisa Melekhina, Saint Louis, 2009
2rB2k1/p1N2p2/6pp/4b2n/4Pqb1/1N1Q2P1/PP3P2/2R3K1 b - - 0 1
[ ...Qf3 if Qxf3 Bxf3 or if Qd5 Bh3 mates ]

c)
Alexander Shabalov vs Krina Krush, Saint Louis, 2009
3r2r1/4b1kp/b1p1Q3/p3pp1B/N7/q7/P1P3PP/1R1R3K w - - 0 1
[ Rb3 if Qxa4 Qxe7+ Kh6 Rh3 mates ]

d)
Black Mates in 3. Tyler Hughes vs Ildar Ibragimov, Saint Louis, 2009
2r3k1/p6R/1p2p1p1/nK4N1/P4P2/3n4/4r1P1/7R b - - 0 1
[ ...Rb2+ ]

e)
Black Mates in 2. Iryna Zenyuk vs Sabina-Francesca Foisor, Saint Louis, 2009
8/8/8/5P2/R2p1N2/4n1r1/PP6/5k1K b - - 0 1
[ ...Ng4 ]


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