verview
This overview shows the three main variations of the Lion, the Lion's den, the Lion's claw and the Lion's head. Click on the buttons on the top of this page to view the variations. Of course there are many more variations of the Lion. In the book three more variations are described: the Lion's roar where white sacrifices it's bishop at f7, the Lion's yawn with 3. ....., e7-e5 and the Lion's mouth with a white advance with f3 and g4. For more information on the Dutch book 'De Leeuw, hét zwarte wapen' click on The Book.

Lion's den
 
1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.f4 e5  
var. 1 5.dxe5 dxe5 6.fxe5 6.fxe5 Nxe5 7.Qxd8+ Kxd8  

1.1 8.Bg5  

1.1.1 8. ... c6 9.0-0-0+ Kc7   

1.1.2 8. ... Be6 9.0-0-0+ Kc8 10.Nf3 Bd6   

1.2 8.Bf4  

1.2.1 8. ... Nfd7 9.0-0-0 Bd6  

1.2.2 8. ... Bd6 9.0-0-0 Ke7 10.Kb1 Bg4 11.Be2 Bxe2  

1.3 8.Nf3!  

1.3.1 8. ... Nfd7 9.Bf4 Bd6 10.0-0-0 Nd3+ 11.Rxd3 Bxf4+ 12.Kb1 c6  

1.3.2 8. ... Bd6 9.Bg5 Be6 10.0-0-0 Kc8   
var. 2 5.Nf3  

2.1 5. ... exd4   

2.1.1 6.Nxd4  

2.1.1.1 6. ... Nc5 7.Bd3 Bg4 8.Nf3 h5 9.h3 Bxf3 10.Qxf3 Nxd3 11.cxd3 c6 12.Be3 d5 13.e5 Nd7   

2.1.1.2 6. ...  g6 7.Bc4 Bg7 8.0-0 0-0 9.Nf3 (9.Re1 Nc5) 9. ... Qe7!   

2.1.2 6.Qxd4 c6  

2.1.2.1 7.e5 dxe5 8.fxe5 Bc5 9.Qh4 Qe7 10.Bf4  

2.1.2.1.1
10. ... Ng4 11.Qxe7+ Kxe7 12.Ne4 Be3 13.Bg3 f6 14.exf6 Ndxf6   

2.1.2.1.2 10. ... Bb4 11.0-0-0 Bxc3 12.exf6 Bxf6 13.Qg3 0-0 14.Bd6 Qe3+ 15.Kb1 Qb6 16.b3 Rfe8 17.Bc4 Nc5 18.Ng5 Bxg5 19.Qxg5  

2.1.2.2 7.Be3 d5   

2.1.2.2.1 8.0-0-0 c5 9.Qa4 d4 10.Bxd4 cxd4 11.Nxd4 Bc5 12.e5 0-0 13.exf6 Nxf6  

2.1.2.2.2 8.exd5 Bc5 9.Qd3 0-0 10.0-0-0 Qb6 11.Bxc5 Nxc5 12.Qd4 cxd5  

2.1.2.2.3 8.e5 Ng4 9.Bg1 Bc5 10.Qd2 Bxg1 11.Rxg1 h5 12.0-0-0 Nh6 13.Be2 Nc5  

2.2 5. ... c6  

2.2.1 6.dxe5 dxe5  

2.2.1.1 7.fxe5 Ng4 8.e6 fxe6 9.Ng5 Nde5 10.Qxd8+ Kxd8 11.h3 Nh6 12.Bf4  

2.2.1.1.1 12. ... Nhf7 13.0-0-0+ Ke8 14.Nxf7 Nxf7 15.e5  

2.2.1.1.2 12. ... Ng6 13.0-0-0+ Ke8 14.Bc7  

2.2.1.1.2.1 14. ... Bc5 15.Rd8+ Ke7 16.Rxh8 Be3+ 17.Kd1 Nxh8 18.Nf3 Nh6 19.Bc4 b5 20.Bb3 a5 21.a3 Ra7  

2.2.1.1.2.2 14. ... Be7 15.Nf3 Bb4 16.e5 Bxc3 17.bxc3 Nf7 18.Bd3 Nf4 19.c4 Nxd3 20.Rxd3 c5   

2.2.1.1.2.2.1 21.Ng5 h6 22.Ne4 b6 23.Rg3 g5 24.h4 gxh4 25.Rxh4 Bb7 26.Nd6+  

2.2.1.1.2.2.2 21.Rhd1 b6 22.Ng5 Ba6 23.Nxe6 Bxc4 24.Nxg7+ Kf8 25.Rg3 Rg8   

2.2.1.1.2.2.3 21.Ra3 Kd7 22.Bb6 Kc6 23.Rxa7 Rxa7 24.Bxa7 b6 25.Bb8 Ba6   

2.2.1.1.2.3 14. ... Bd7 15.e5 Rc8 16.Bd6 Be7   

2.2.1.2 7.Nxe5 Nxe5 8.Qxd8+ Kxd8 9.fxe5 Ng4 10.Bf4  

2.2.1.2.1 10. ... Bc5 11.Bc4 Ke8 12.Ke2 b5 13.Bd3 Bd4   

2.2.1.2.2 10. ... Be6 11.h3 Nh6 12.Ne2 Bc5 13.Bg5+ Kc7 14.Nf4 Bd4 15.Nd3   

2.2.1.3 7.Bc4 Bb4 8.Ng5   

2.2.1.3.1 8. ... Qa5 9.Bxf7+ Ke7 10.Bb3 h6 11.Nf3 Nxe4  

2.2.1.3.2 8. ... 0-0 9.Nxf7 Rxf7 10.fxe5 Nd5 11.Qh5 g6 12.Qh6 Nxe5  

2.2.2 6.Be2 Qc7 7.0-0  

2.2.2.1 7. ... b5 8.d5 b4 9.dxc6 bxc3 10.cxd7+ Bxd7 11.b3 Be7 12.Bd3 0-0 13.Ba3 Rae8 14.fxe5 dxe5 15.Bxe7 Rxe7 16.Qe1  

2.2.2.2 7. ... Be7  

2.2.2.2.1 8.a4 h6 9.Rb1 a5 10.Kg1 exf4 11.Bxf4 g5 12.Be3 Nf8 13.d5 Ng6 14.Nd4 Ne5 15.Nf5 Bxf5 16.Rxf5 Nd7 17.Qd2 f6   

2.2.2.2.2 8.Kh1 exd4 9.Nxd4 Nb6 10.Qe1 Bg4   

2.2.2.3 7. ... h6 8.Kh1 exf4 9.Bxf4 g5 10.Be3 Bg7 11.Qe1 Nf8  

2.2.3 6.Bd3  

2.2.3.1 6. ... Qc7 7.Ne2 Be7 8.c3 0-0 9.0-0 d5 10.Nxe5 dxe4 11.Bc2 c5  

2.2.3.2 6. ... exd4 7.Nxd4 Nc5 8.h3 Nxd3 9.cxd3 Qb6 10.Ne2 h5  

2.2.3.3 6. ... Qa5 7.0-0 Be7 8.Kh1 0-0 9.Ne2 Re8 10.c3 d5 11.b4 Qc7 12.fxe5 dxe4 13.exf6 Bxf6  

2.2.4 6.Bc4  

2.2.4.1 6. ... exd4   

2.2.4.1.1 7.Nxd4 d5 8.exd5 Nb6 9.Qe2+ Be7 10.0-0 Nxc4 11.Qxc4 Nxd5  

2.2.4.1.2 7.Qxd4 d5 8.exd5 Bc5 9.Qd3 0-0   

2.2.4.1.2.1 10.dxc6 bxc6 11.Bd2 Re8+ 12.Ne2 Ne4 13.Rf1 Nxd2 14.Nxd2 Re3 15.Qf5 Ne5 16.Qg5 Be7 17.Qh5 Bg4 18.Bxf7+ Kh8   

2.2.4.1.2.2 10.Bd2 Re8+ 11.Ne2 cxd5 12.Bb3 Qe7 13.Bc3   

2.2.4.1.2.2.1 13. ... Be3 14.Be5 Bb6 15.Bxd5 Nxe5 16.Nxe5 Nxd5   

2.2.4.1.2.2.2 13. ... Ne4 14.Bd4 Bxd4 15.Nxd4 Nc5 16.Qf3 Nf6 17.h3 b6 18.0-0-0 Ba6 19.Rhe1  

2.2.4.2 6. ... Qa5   

2.2.4.2.1 7.Ng5 d5 8.exd5 exd4 9.dxc6 dxc3 10.cxd7+ Bxd7 11.Bxf7+   

2.2.4.2.2 7.Bd2 Be7 8.0-0 0-0 9.Kh1 exd4 10.Nd5 Qd8 11.Nxe7+ Qxe7 12.Bxf7+   

2.2.4.3 6. ... Be7  

2.2.4.3.1 7.dxe5 dxe5 8.fxe5 Ng4 9.e6 fxe6 10.Bxe6 Ne5   

2.2.4.3.2 7.a4 Qc7 8.0-0 0-0 9.Kh1 exd4 10.Nxd4 Bc5 11.Qf3 Rd8 12.h3 Nxe4 13.Bxf7+ Kxf7 14.Nxe4 Nxe4  

2.2.5 6.Be3 Ng4   

2.2.5.1 7.Bg1 exf4 8.Qd2 Qf6 9.0-0-0 Be7 10.Bc4 Qh6 11.Rde1 Nb6 12.Bb3 0-0 13.h3 Ne3   

2.2.5.2 7.Qd2 Nxe3 8.Qxe3 exf4 9.Qxf4 Qf6   

2.2.6 6.a4 Qc7 7.Bc4 exd4 8.Qxd4 d5 9.Bb3 Bc5 10.Qd3 dxe4   

The Lion's claw
 
1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.Nf3 e5  
var. 1 5.Be2 Be7 6.0-0 c6  

1.1 7.a4  h6  

1.1.1 8.h3  

1.1.2 8.Be3  
  1.1.3 8.a5  

1.2 7.b3 h6 8.Bb2 g5 9.Qd2 Qc7  

1.2.1 10.Rfd1  

1.2.2 10.Rad1   
var. 2 5.Bc4  

2.1 5. ... h6 6.0-0 c6 7.a4 Qc7 8.b3?! Nb6!  

2.2 5. ... Be7 6.0-0 h6  

2.2.1 7.a4 c6  

2.2.2 7.h3 c6 8.a4 Qc7  

The Lion's head
 
1.e4 d6 2.d4 Nf6 3.Nc3 Nbd7 4.Nf3 e5 5.Bc4 Be7 6.0-0 0-0  
var. 1 7.Qe2  

1.1 7. ... exd4! 8.Nxd4 Ne5 9.Bb3 c5 10.Nf5 Bxf5 11.exf5 Qd7!  

1.1.1 12.Nd5   

1.1.2 12.f4   

1.1.3 12.Bf4?  

1.2 7. ... c6  

1.2.1 8.a4  

1.2.2 8.dxe5 dxe5   

1.2.3 8.Bb3   

1.2.4 8.Bg5   

1.2.5 8.Rd1?!   
var. 2 7.Re1 c6 8.a4  

2.1 8. ... a5  

2.1.1 9.h3  

2.1.2 9.Ba2  

2.1.3 9.b3  

2.2 8. ... b6  

2.2.1 9.d5  

2.2.2 9.h3  

2.2.3 9.Ba2  

2.2.4 9.b3  

2.3 8. ... Qc7  

2.3.1 9.h3  

2.3.2 9.b3  

2.3.3 9.a5  

2.3.4 9.Bg5  

2.3.5 9.Ba2  

2.4 8. ... Qe8?!  
var. 3 7.h3 c6 8.a4  

3.1 8. ... b6  

3.2 8. ... Qc7  

3.3 8. ... Nxe4!  

3.4 8. ... a5?!  
var. 4 7.Be3 c6  

4.1 8.a4!  

4.2 8.dxe5  

4.3 8.Bb3?!  
var. 5 7.dxe5  

5.1 7. ...dxe5  

5.1.1 8.Bg5  

5.1.2 8.h3  

5.1.3 8.Re1!  

5.2 7. ... Nxe5 8.Nxe5 dxe5  

5.2.1 9.Qf3  

5.2.2 9.Qe2  
var. 6 7.a4 c6  

6.1 8.a5  

6.1.1 8. ... Qc7  

6.1.2 8. ... h6!?  

6.1.3 8. ... Nxe4?!  

6.1.4 8. ... Rb8 9.Qe2  

6.2 8.Ba2  

6.2.1 8. ... Qc7  

6.2.2 8. ... b6  

6.2.3 8. ... exd4?!  

6.2.4 8. ... a5  

6.2.5 8. ... h6  

6.3 8.dxe5  

6.3.1 8. ... dxe5  

6.3.2 8. ... Nxe5