Here are some chess puzzles from the games of Peter Heine Nielsen.
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)
Nielsen vs Marcelo Playa, Buenos Aires, 1993
5rk1/5ppp/p1p2rn1/2Qp4/3N1Pq1/4R1P1/PPP2P2/R5K1 w - - 0 1
[ f5 if Nh4 Rae1 Nxf5 Qxf8+ mates ]

b)
White Mates in 3. Nielsen vs Jonas Barkhagen, Copenhagen, 1995
r2r1b1k/pR6/6pp/5Q2/3qB3/6P1/P3PP1P/6K1 w - - 0 1
[ Rh7+ ]

c)
Nielsen vs Hannes Stefansson, Aarhus, 1997
r4rk1/p4ppp/bbp1p3/1q1n4/N3B3/P5P1/1PQ1PP1P/R1B2RK1 w - - 0 1
[ Bd3 if Qa5 Bxh7+ w/Bd2 & Bd3 ]

d)
White Mates in 6. Nielsen vs Ole Jakobsen, Copenhagen, 1998
5r2/4P1bk/p1qr3p/8/5p2/1QB2Rn1/PP4P1/4R1K1 w - - 0 1
[ exf8N+ Kh8 Bxg7+ Kxg7 Re7+ Kf6 Qf7+ Kg5 Nh7+ Kg4 Rxf4# ]

e)
Nielsen vs Henrik El-Kher, Aarhus, 1999
1rb2rk1/1p1nQp1p/p3p1p1/2q5/2PN3P/4P1P1/P4PB1/1R1R2K1 w - - 0 1
[ Nc6 if bxc6 Qxc5 or if Ra8 Rxd7 Qxe7 Nxe7+ ]



Nielsen Puzzles, Part II. White to move and win except where noted.
a)
Nielsen vs Jonathan Speelman, Esbjerg, 2001
2b3Q1/p1r5/4q2p/7k/3Bpp2/P6P/6P1/2R3K1 w - - 0 1
[ Qg4+ ]

b)
Nielsen vs Sergey Kishnev, Germany, 2001
2r2rk1/pp2nppp/4p3/1qn5/1B6/6P1/P2QPPBP/1R3RK1 w - - 0 1
[ Rfc1 ]

c)
Nielsen vs Robert Rabiega, Germany, 2001
5rk1/p4pp1/2pr2n1/3q4/4RP2/P4NP1/2Q2PK1/4R3 w - - 0 1
[ Rd4 ]

d)
Nielsen vs Jan Timman, Malme, 2002
4kb1r/1p2pp1p/rnp3p1/p7/P2PP3/1QN1BqP1/1P5P/2KRR3 w k - 0 1
[ d5 ]

b)
White Mates in 4. Nielsen vs Ferenc Berkes, Panormo, 2002
1q1r1k2/1b2Rpp1/p1pQ3p/PpPp4/3P1NP1/1P3P1P/6K1/8 w - - 0 1
[ Rxf7+ ]

New Title from wtharvey.com


2,817 Checkmates !

Nielsen Puzzles, Part III. White to move and win except where noted.
a)
Nielsen vs Alexander Huzman, Panormo, 2002
1k4r1/pp6/2p5/2br3p/P7/5NP1/1P2P2K/2R2R2 w - - 0 1
[ e4 ]

b)
Nielsen vs Valerij Popov, Panormo, 2002
1r4k1/5p1p/pn3Bp1/3pP3/8/7P/P4PP1/1R4K1 w - - 0 1
[ e6 if fxe6 Be5 ]

c)
Nielsen vs Sergey Karjakin, Hastings, 2003
3k1b1r/p5pp/1q1P1p2/2p1p3/Q1B1n3/5N2/P4PPP/5RK1 w - - 0 1
[ Be6 Qb7 Qa5+ if Qb6 Rb1 ]
Solution juiced by Pablo Pena. Thx!

d)
Nielsen vs Nils-Gustaf Renman, Malme, 2003
r7/pp1qnkp1/2p3r1/2PpQpP1/3P1P1P/1P4P1/P7/2R1R1K1 w - - 0 1
[ h5 Re6 g6+ if Nxg6 Qxf5 Ke7 Qxg6 ]

e)
Nielsen vs Nigel Short, Reykjavik, 2004
2RNq1bk/6p1/1p3n1p/3Pnp1P/p2Q4/P3BBP1/5PK1/1r6 w - - 0 1
[ Qxe5 ]

Nielsen Puzzles, Part IV. White to move and win except where noted.
a)
Nielsen vs Mihail Golubev, Internet, 2004
3r1r1k/p2bN1bp/1p1P4/5pQ1/8/6P1/Pq4BP/3R1R1K w - - 0 1
[ Ng6+ hxg6 Qh4+ Kg8 Bd5+ Rf7 Bxf7+ w/Qe7+ & Qxd8+ ]

b)
Nielsen vs Igor Glek, Internet, 2004
1rb2r2/1p2qpbk/pNp1n1pp/1nP1p3/1PN1P3/4B2P/P4PP1/R1QR1BK1 w - - 0 1
[ Nd6 ]

c)
Nielsen vs Victor Nithander, Copenhagen, 2007
3q2k1/5r1p/p2p4/n1pP1p2/2P2b2/2BQ2NP/P7/1R4K1 w - - 0 1
[ Bxa5 Qxa5 Rb8+ Kg7 Nh5+ ]

d)
Nielsen vs Veselin Topalov, Monte Carlo, 2006
1b4k1/1B3pp1/1P2b2p/8/3p4/6P1/2rB1P1P/R5K1 w - - 0 1
[ Bf4 if Bxf4 Ra8+ w/Be4+ ]

e)
Nielsen vs Thies Heinemann, Germany, 2008
rn3rk1/p4ppp/1pq2n2/2p3N1/8/2N3P1/PPQ2P1P/3RR1K1 w - - 0 1
[ Nd5 ]

Peter Heine Nielsen Puzzles, Part V.
The color disk on the diagram indicates who moves first.
a)
White mates in 4.
Peter Heine Nielsen vs Vasily Papin, Aix les Bains, 3/30/2011
r3r2q/pp6/2n5/3p1B2/k2P3P/PR6/1P1Q1PP1/6K1 w - - 1 0
[ Rxb7 ]

b)
Peter Heine Nielsen vs Jacob Carstensen, Helsingor, 7/31/2011
r2r2k1/6p1/2p1R2p/1p1n4/7P/2q2B2/PQ3PP1/3R2K1 w - - 1 0
[ Re8+ if Kh7 Qxc3 or if Rxe8 Bxd5+ ]

c)
Peter Heine Nielsen vs Andrei Volokitin, Rogaska Slatina, 10/1/2011
r1b3k1/pp3pbp/q3pnp1/6N1/4PB2/1BNn3P/PP3PP1/3Q1RK1 w - - 1 0
[ Bc2 if Nc5 Qd8+ mates ]

d)
Peter Heine Nielsen vs Andreas Skytte Hagen, Denmark, 10/29/2011
b1r5/pq2kpp1/4pn2/PPp1Q2p/2P5/2B1PPN1/2r1B1PP/R5K1 w - - 1 0
[ Nf5+ w/Nd6 ]

e)
Mircea Parligras vs Peter Heine Nielsen, Khanty Mansyisk, 9/5/2011
5rk1/p3ppbp/1q1pb1p1/1N3r2/2PB1Qn1/1P4P1/P3PPBP/R4RK1 b - - 0 1
[ ...Bxd4 if Qxd4 Rxb5 ]

f)
Tapani Sammalvuo vs Peter Heine Nielsen, Sweden, 11/22/2013
6k1/p5b1/4p1Q1/2B2p1p/q1P5/6P1/P6P/3r1RK1 b - - 0 1
[ ...Rxf1+ Kxf1 Qxc4+ ]

g)
White mates in 2.
Peter Heine Nielsen vs Tahir Vakhidov, Dubai, 6/19/2014
4rk2/p4p2/1p6/2p1Nb2/2B5/q1P1Q3/P4PP1/3RK3 w - - 1 0
[ Qh6+ ]


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