Opening the diagonal

By moving a piece, the diagonal is opened for the bishop.

Spassky    --    Ribli
   Tilburg
1980     1-0


:: BR BR BK ::
:: BQ BB BP BP
:: :: BP :: BP
BN BP :: ::
:: WP WQ :: ::
BP WB :: WN :: WP
WP :: :: WP WP ::
:: WR WR :: WK


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


:: BR :: BR BK ::
BP BB BQ BB BP BP BP
BP :: BP :: ::
BN :: :: ::
:: WP WP :: ::
WP :: WB :: WN ::
WB :: WQ WP WP WP
:: :: WR :: WR WK


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


:: BR BR BB BK ::
:: BB BQ :: BP BP BP
BP BP :: :: ::
:: :: BP WP WP ::
WP :: BN BN ::
:: WN WQ WN ::
WP WB :: :: WP WP
:: WB :: WR WR :: WK


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


:: BQ BR BR :: BK ::
BP BB :: :: BP BP BP
:: :: BN ::
:: WN BB BP WN ::
:: :: WP ::
WP :: WQ :: ::
WB WP WP :: WP WP
:: WR :: :: WR :: WK


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