Here are some chess puzzles from the games of Jaan Ehlvest.
White to move and win.

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


a)
Ehlvest vs Takhir Khasanov, Leningrad, 1982
r1bqkn1r/1p4b1/p2p1np1/2p3Bp/P1P1P3/4N3/1P2BNPP/R2Q1RK1 w - - 0 1
[ e5 dxe5 Qxd8+ Kxd8 Ne4 ]

b)
Ehlvest vs Yuri Kruppa, Lvov, 1985
r2q1k2/1pp2p1Q/1n2r1p1/1P2P1P1/3n3R/p6P/3N1PBK/4R3 w - - 0 1
[ Qh8+ Ke7 Qf6+ if Rxf6 exf6+ Kd6 Rxd4+ Kc5 Nb3+ ]

c)
Ehlvest vs Viktor Korchnoi, Skelleftea, 1989
8/3bk2p/3NppnP/1pP5/3P4/3Q2P1/6BK/4q3 w - - 0 1
[ Qxg6 ]

d)
Ehlvest vs Lars Karlsson, Haninge, 1990
2r1n2k/1pNqnrb1/pP2b2p/P2pp1p1/2N2p2/B2PP1P1/4QPBP/1R3RK1 w - - 0 1
[ Nxe8 ]

e)
Ehlvest vs Nick De Firmian, Manila, 1990
2rq1rk1/1b1nppbp/p2p2p1/3N4/2Q1P3/1P4P1/P2B1PBP/2RR2K1 w - - 0 1
[ Qxc8 Bxc8 Rxc8 Qxc8 Nxe7+ w/Nxc8 & Bh3 ]



Ehlvest Puzzles, Part II. White to move and win except where noted.
a)
Ehlvest vs Margeir Petursson, Reggio Emilia, 1990
8/1p4p1/p1p2k2/P1r1p3/3nR1PP/4B3/5PK1/8 w - - 0 1
[ Rxd4 if exd4 Bxd4+ Re5 f4 ]

b)
Ehlvest vs Boris Gelfand, Linares, 1991
1r6/kr4p1/q2p1p1p/2nPpP2/p1R5/Q1R3P1/1PPN3P/2K5 w - - 0 1
[ Ne4 ]

c)
White Mates in 4. Ehlvest vs Alexander Beliavsky, Reykjavik, 1991
8/1p3pkp/6p1/6P1/5n2/p5q1/PP1Q2P1/3R2K1 w - - 0 1
[ Qd4+ ]

d)
White Mates in 4. Ehlvest vs Ilya Gurevich, Saint Martin, 1993
3r1b2/3P1p2/p3rpkp/2q2N2/5Q1R/2P3BP/P5PK/8 w - - 0 1
[ Rxh6+ if Bxh6 Qxh6+ ]

e)
Ehlvest vs Gregory Markzon, Linares, 1994
2b1r1k1/rp1n1pbp/2p3p1/pnP1p3/N1B1P3/PN2BP2/1P4PP/3RK2R w K - 0 1
[ Bxb5 if cxb5 c6 ]

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2,817 Checkmates !

Ehlvest Puzzles, Part III. White to move and win.
a)
Ehlvest vs Judit Polgar, New York, 1995
2q1rbk1/3b3p/2nBprp1/pNp1N3/PnPp4/3P2P1/3Q1PBP/R3R1K1 w - - 0 1
[ Ng4 if Rf7 or Rf5 Bxf8 w/Nd6 or Nh6 ]

b)
Ehlvest vs Yaacov Zilberman, Eupen, 1997
2r3k1/q2nnp1p/p3p1pP/1pr1P3/5Q2/1B3N2/PP3PP1/2RR2K1 w - - 0 1
[ Rxc5 if Rxc5 or Nxc5 Qf6 ]

c)
Ehlvest vs Sten Safholm, Stockholm, 1997
r1b2rk1/pp1n1pp1/1b5p/3B4/2P4P/2B2Nq1/PPQ3P1/1K1R3R w - - 0 1
[ Ng5 if hxg5 hxg5 Rd8 Qg6 mates ]

d)
Ehlvest vs Viktorija Cmilyte, Mezezers, 2000
7k/1p4b1/2rr2pp/4p3/P3q3/1Q2B1P1/5P1P/2RR2K1 w - - 0 1
[ Rxd6 if Rxd6 Rc8+ mates ]

e)
Ehlvest vs Sergei Movsesian, New Delhi, 2000
2b1rnk1/1p2q1b1/r6p/pNp2pp1/2P1p3/P1N1P1P1/1PQ1BPP1/1R1R2K1 w - - 0 1
[ Nd5 w/Nc7 ]



Ehlvest Puzzles, Part IV. White to move and win except where noted.
a)
White Mates in 7. Ehlvest vs Luke McShane, Reykjavik, 2000
1r3q1k/4br1p/3p2n1/3Np1PR/p1BnP1Q1/P5P1/1P6/1KB4R w - - 0 1
[ Rxh7+ ]

b)
Ehlvest vs Cyrus Lakdawala, San Francisco, 2000
7k/pb2rB1p/2p3p1/4qp2/8/Q6P/P4PP1/3R2K1 w - - 0 1
[ Rd7 ]

c)
Ehlvest vs Pavel Smirnov, Panormo, 2002
3r1r1k/pp2b1p1/1qp1Rnpp/3n4/3P3B/1BN2Q1P/PP3PP1/3R2K1 w - - 0 1
[ Bxf6 if Rxf6 Nxd5 ]

d)
Ehlvest vs Alexander Stripunsky, New York, 2003
r1bq3k/ppp3bp/6p1/1P1Np3/2P5/6P1/P3PPB1/3Q1RK1 w - - 0 1
[ Nb6 Qxd1 Rxd1 axb6 Rd8+ Bf8 Rxf8 Kg7 Rd8 w/Bh3 ]

e)
Ehlvest vs Etienne Bacrot, Reykjavik, 2003
r3nr1k/ppp3bp/3p2q1/3Ppb2/2P1B2Q/2N1BR2/PP3P1P/2KR4 w - - 0 1
[ Rxf5 Rxf5 Qh3 if Rh5 Qf3 ]

Ehlvest Puzzles, Part V. White to move and win.
a)
Ehlvest vs Roman Jaquez, Santo-Domingo, 2006
r2qb1k1/1p2rnpp/3Np3/1PQpPp2/3P3P/5N2/5PP1/2RR2K1 w - - 0 1
[ Nc8 if Rd7 Nb6 ]

b)
Ehlvest vs Salvijus Bercys, Philadelphia, 2007
2q3r1/4bk2/p1npppp1/2r5/3NPP2/1P4P1/PB1Q2K1/2R4R w - - 0 1
[ b4 ]

c)
Ehlvest vs Jesse Kraai, Berkeley, 2005
br1r2k1/5pp1/1q2p2p/p3Q3/2pR4/2N2PP1/PP1RP1KP/8 w - - 0 1
[ Na4 ]


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