## 'Characteristic Puzzles in the Opening' series

### Here are some chess puzzles from the games of John Van der Wiel. The color disk on the diagram indicates who moves first.

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

a)
White mates in 6.
John Van der Wiel vs Paulo Baptista, Graz, 1978
r1r3k1/pp2np2/1q2p1pQ/3p3p/3P1PP1/1PPB3R/P6P/4R1K1 w - - 0 1
[ Rxh5 if gxh5 Bh7+ ]

b)
John Van der Wiel vs Vaidyanathan Ravikumar, Graz, 1978
r1r1nbk1/1p3ppp/pBb3q1/P2N2P1/5P1Q/2R2B2/1P5P/3R2K1 w - - 0 1
[ f5 if Qxf5 Be4 or if Qd6 Nf6+ ]

c)
John Van der Wiel vs Mateu, Groningen, 1979
r5r1/1p2pp1k/p1qp1B1p/3N1P1P/4P3/1P3p2/1PPQ4/2K3R1 w - - 0 1
[ Rg6 if Rxg6 fxg6+ fxg6 Nxe7 ]

d)
White mates in 4.
John Van der Wiel vs Georg Danner, Lucerne, 1982
1Qb2b1r/1p1k1p1p/3p1p2/3p4/p2NPP2/1R6/q1P3PP/4K2R w K - 0 1
[ Rxb7+ Bxb7 Qxb7+ ]

e)
John Van der Wiel vs Gyula Sax, Plovdiv, 1983
2r3k1/pr2pbb1/5nQ1/1pq1B3/5P2/P1N5/1PP3P1/1K1R3R w - - 0 1
[ Rh8+ Kxh8 Qxf7 w/Rh1+ ]

John Van der Wiel Puzzles, Part II.
The color disk on the diagram indicates who moves first.
a)
John Van der Wiel vs Nigel Short, Biel, 1985
2kr4/p1pN1p1p/1pR5/8/3PQ3/6P1/b2q2PK/8 w - - 0 1
[ Rd6 ]

b)
White mates in 5.
John Van der Wiel vs Hans Ree, Wijk aan Zee, 1986
2qb3r/1b3pk1/1Bnp1N2/4pPPQ/4P3/rP6/2P5/1K1R1BR1 w - - 0 1
[ Qxh8+ ]

c)
John Van der Wiel vs Paul Van Der Sterren, Hilversum, 1986
r2k3r/1pp2b1N/1b1p1p1R/5N2/1P2Pp2/8/P4PP1/R3K3 w Q - 0 1
[ Ng5 ]

d)
John Van der Wiel vs Jan Timman, Tilburg, 1988
r3kb1r/pppq1ppp/2p3b1/2n1P3/5P2/4B3/PPP1Q1PP/RN2NRK1 w kq - 0 1
[ f5 if Bxf5 Qf2 ]

e)
White mates in 5.
John Van der Wiel vs J Vanhest, Rotterdam, 1990
1r6/6kp/pp3RnN/4p2Q/P7/8/2q1p2P/5RK1 w - - 0 1
[ Rf7+ w/Rxh7+ ]

John Van der Wiel Puzzles, Part III.
The color disk on the diagram indicates who moves first.
a)
John Van der Wiel vs Helgi Olafsson, Wijk aan Zee, 1991
3rk3/2qbnpbN/3pp1p1/2r1n1B1/3NP3/2P3P1/3Q1PB1/R3R1K1 w - - 0 1
[ Bf6 ]

b)
John Van der Wiel vs Emmanuel Bricard, Brussels, 1993
r2bk2r/pbpq1ppp/1p2p1n1/3nP3/PPNP4/5N2/2QBBPPP/R2R2K1 w kq - 0 1
[ Nd6+ if cxd6 Bb5 ]

c)
John Van der Wiel vs Alexander Mikhalevski, Amsterdam, 1995
r3k2r/p1ppnppp/b1p5/2b1P3/2P4q/PP6/R3QPPP/1NB1KB1R w Kkq - 0 1
[ g3 if Qd4 Bb2 ]

d)
John Van der Wiel vs Computer "Frenchess", Hague, 1996
r5k1/1p3pp1/r1ppn2p/p1b1p3/2P1P3/PP1RPP2/3BNqPP/R2Q3K w - - 0 1
[ Ng3 if Ng5 Be1 ]

e)
John Van der Wiel vs Oliver Brendel, Germany, 1997
r1bqk2r/ppnpb1pp/5p2/1Np3N1/4Q3/8/PPPP1PPP/R1B1K2R w KQkq - 0 1
[ Nd6+ Kf8 Ngf7 ]

f)
John Van der Wiel vs Mahdi Atia, Elista, 1998
2k2b1r/1pp2ppp/p2q1n2/8/QnP1p3/2N1B3/PP2BPPP/2K4R w - - 0 1
[ c5 if Nd3+ Bxd3 Qxd3 Rd1 ]

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