Here are some chess puzzles from the games of Jon Ludvig Hammer.
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)
White Mates in 4. Hammer vs Eirik Gullaksen, Tromsoe, 2006
1k6/5Q2/2Rr2pp/pqP5/1p6/7P/2P3PK/4r3 w - - 0 1
[ Qc7+ Ka8 Qc8+ ]

b)
Hammer vs O Lundeby, Norway, 2007
5nk1/1p1b3p/3q1rpQ/1p1p4/3P4/r1NBP3/6P1/4RRK1 w - - 0 1
[ Nxd5 if Rxf1+ Rxf1 Rxd3 Nf6+ Kh8 Ne4 ]

c)
Hammer vs Heikki Westerinen, Gausdal, 2007
7r/p3bpk1/qp2p1p1/4P2p/1PR5/P4Q2/3N1PPP/6K1 w - - 0 1
[ Rc7 if Re8 Rxe7 or if Rc8 b5 ]

d)
White Mates in 4. Hammer vs Joran Aulin-Jansson, Hamar, 2007
1r3k2/5p1p/1qbRp3/2r1Pp2/ppB4Q/1P6/P1P4P/1K1R4 w - - 0 1
[ Qh6+ if Ke8 Rxe6+ ]

e)
Hammer vs Nicolai Getz, Oslo, 2008
4r3/1n3pkp/pB2p1p1/P3p3/1Pr3P1/5P1P/3R4/3R3K w - - 0 1
[ Rd7 if Rb8 Bc7 ]



Hammer Puzzles, Part II. White to move and win except where noted.
a)
White Mates in 3. Hammer vs Bo Garner Christensen, Borup, 2008
2r1k3/3n1p2/6p1/1p1Qb3/1B2N1q1/2P1p3/P4PP1/2KR4 w - - 0 1
[ Qxe5+ ]

b)
White Mates in 2. Hammer vs Shakil Abu Sufian, Dresden, 2008
1Q6/r3R2p/k2p2pP/p1q5/Pp4P1/5P2/1PP3K1/8 w - - 0 1
[ Rxa7+ ]

c)
White Mates in 6. Hammer vs Oleg Korneev, Gjovik, 2009
1r6/3R1pk1/q3p1p1/4PbPp/8/2R5/3Q2PK/8 w - - 0 1
[ Rxf7+ ]

d)
White Mates in 4. Hammer vs Magnus Carlhammar, Gibraltar, 2009
3rk3/1q4pp/3B1p2/3R4/1pQ5/1Pb5/P4PPP/6K1 w - - 0 1
[ Re5+ if Kd7 Qe6+ Kc6 Bb8+ ]

e)
Hammer vs Mads Borup, Helsingor, 2009
6k1/pb5p/np2pp1q/6p1/1PP4P/4BPQ1/P1B3P1/7K w - - 0 1
[ b5 if Nb4 Qb8+ ]

f)
Hammer vs Sune Berg Hansen, Helsingor, 2009
1qrr1n2/1b3k2/pQ1p2p1/P2P1p1p/1PN1pP1P/1B4P1/8/2R1R1K1 w - - 0 1
[ Nxd6+ if Rxd6 Rxc8 or if Qxd6 Qxb7+ ]

Jon Ludvig Hammer Puzzles, Part III.
The color disk on the diagram indicates who moves first.
a)
Jon Ludvig Hammer vs Dan Cramling, Stockholm, 2010
r2r2k1/5ppp/8/2p1n3/1P1pq3/1BP3P1/P2R1R1P/3Q2K1 w - - 1 0
[ Rde2 ]

b)
Jon Ludvig Hammer vs Daniel King, England, 2010
1r3k2/p2r2p1/4bp2/2np1N1Q/2p2P2/P1q1P3/6PP/1B1R1RK1 w - - 1 0
[ Qh8+ Bg8 Rxd5 ]

c)
Jon Ludvig Hammer vs Carsten Hoi, Oslo, 2010
7r/3b4/p3p1k1/1p1q1p2/3N2p1/2Q5/PPP5/2KR4 w - - 1 0
[ Ne2 Rc8 Nf4+ ]

d)
White mates in 3.
Jon Ludvig Hammer vs Andrzej Szewczak, Warsaw, 2010
r1bqr3/pp5Q/4pkn1/3p1p2/3P3P/1P2N1P1/PB6/R3R1K1 w - - 1 0
[ Ng4+ fxg4 Rf1+ ]

e)
Jon Ludvig Hammer vs Anna Zozulia, Warsaw, 2010
2rqk2r/1p4pn/p2pNbb1/2nPp2p/4P2P/1Q6/PP3PN1/R1B1RBK1 w k - 1 0
[ Qg3 ]


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