Opening the diagonal
By moving a piece, the diagonal is opened for the bishop.
Spassky -- Ribli
Tilburg
1980 1-0
1.d5!! exd5
- ( 1...Kg8 2.dxe6 Nc6 3.exf7+ Kxf7 4.Qh7 )
2.Qh7 f6 3.Nh4 Ke8
- ( 3...d4 4.Bxa5 Qxa5 5.Nf5 )
4.Qg8+ Kd7 5.Qxd5+ Qd6 6.Qf5+ 1-0
Kasparov -- Portisch
Niksic
1983 1-0
1.d5!! exd5
- ( 1...Nxc4 2.Qe4! g6 3.Bxc4 Qxc4 4.Qe5 f6 5.Qxe6+ Rf7 6.
Rc1 Qa6 7.d6 +- )
2.cxd5 Bxd5 3.Bxh7+ Kxh7 4.Rxd5 Kg8 5.Bxg7! Kxg7 6.Ne5! Rfd8
- ( 6...Qc2 7.Qg4+ Kh7 8.Rd3 Rc6 9.Qf5+ +- )
- ( 6...Rh8 7.Qg4+ Kf8 8.Qf5 f6 9.Re1 Nc6 10.Nd7+ Kf7 11.
Rxe7+ +- )
7.Qg4+ Kf8 8.Qf5! f6
- ( 8...Bf6 9.Qxf6 Rxd5 10.Ng6+ Ke8 11.Re1+ +- )
9.Nd7+ Rxd7 10.Rxd7 Qc5 11.Qh7 Rc7 12.Qh8+! Kf7 13.Rd3 Nc4 14.Rfd1! Ne5?
- ( 14...Bd6 15.Rd5 Qc6 16.h4 +/- )
15.Qh7+ Ke6 16.Qg8+ Kf5 17.g4+! Kf4 18.Rd4+ Kf3 19.Qb3+ 1-0
Ernst -- Plachetka
Gausdal
1986 0-1
1...Nxg2! 2.Kxg2 d4!! 3.Nd5
- ( 3.Qxe4 dxc3! )
- ( 3.Nb5 axb5 4.Bxd4 Ng5! 5.Qxg5 Rxd4 )
3...Rxd5! 4.Qxe4 Rdxe5! 5.Qh4 Rxe1 6.Rxe1 Qc6! 0-1
W.Watson -- Spraggett
England
1985 0-1
1...d4!! 2.Nxd4 Qa8! 3.Nef3
- ( 3.Rf2 h5! )
3...Re4 4.Qb5! Bb6 5.c4 Rxf4 6.c5 Rd5! 7.Rbc1 Ne4 8.Ne2 Rg4 9.d4 Rh5! 10.
Qd7 Nf6 11.Qd6?
- ( 11.Qb5 Bxf3!! 12.Rxf3 Bc7! 13.Ng3 Bxg3 -+ )
- ( 11.Qe7 Re4 12.Ne5 Rhxe5 13.dxe5! Rxe2 -+ )
11...Rd5 12.Qe7 Re4 13.Qxe4 Nxe4 14.cxb6 axb6 0-1
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