Continuing series from wtharvey.com



Here are some chess puzzles from the games of Jaan Ehlvest.
The color disk on the diagram indicates who moves first

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

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

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

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

e)
Jaan 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 ]

Jaan Ehlvest Puzzles, Part II.
The color disk on the diagram indicates who moves first
a)
Jaan 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)
Jaan Ehlvest vs Boris Gelfand, Linares, 1991
1r6/kr4p1/q2p1p1p/2nPpP2/p1R5/Q1R3P1/1PPN3P/2K5 w - - 0 1
[ Ne4 ]

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

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

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

Jaan Ehlvest Puzzles, Part III.
The color disk on the diagram indicates who moves first
a)
Jaan 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)
Jaan Ehlvest vs Yaacov Zilberman, Eupen, 1997
2r3k1/q2nnp1p/p3p1pP/1pr1P3/5Q2/1B3N2/PP3PP1/2RR2K1 w - - 0 1
[ Rxc5 if Rxc5 or Nxc5 Qf6 ]

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

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

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Jaan Ehlvest Puzzles, Part IV.
The color disk on the diagram indicates who moves first
a)
White mates in 7.
Jaan Ehlvest vs Luke McShane, Reykjavik, 2000
1r3q1k/4br1p/3p2n1/3Np1PR/p1BnP1Q1/P5P1/1P6/1KB4R w - - 0 1
[ Rxh7+ ]

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

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

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

Jaan Ehlvest Puzzles, Part V.
The color disk on the diagram indicates who moves first.
a)
Jaan Ehlvest vs Jesse Kraai, Berkeley, 2005
br1r2k1/5pp1/1q2p2p/p3Q3/2pR4/2N2PP1/PP1RP1KP/8 w - - 0 1
[ Na4 ]

b)
Jaan Ehlvest vs Roman Jaquez, Santo-Domingo, 2006
r2qb1k1/1p2rnpp/3Np3/1PQpPp2/3P3P/5N2/5PP1/2RR2K1 w - - 0 1
[ Nc8 if Rd7 Nb6 ]

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

d)
Jaan Ehlvest vs Klaus Bischoff, Dresden, 2018
2r3k1/5p1p/3P2p1/p7/Bb6/3R2P1/5PKP/8 w - - 1 0
[ d7 if Rd8 Re3 ]

e)
Jaan Ehlvest vs Margeir Petursson, Rhodes, 2019
r1b3k1/p1q2r1p/2p1p2Q/5p1p/2B5/2N2P2/PPP5/1K1R4 w - - 1 0
[ 1.Qg5+ if 1...Kh8 2.Rd8+ or if 1...Rg7 2.Rd8+ Kf7 3.Qxf5+ mates ]


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