1. KE4!

1. Ng6? KF5! (? 1 .... gxf4 2. KE4 + - Voir la solution) 2. Ne7 + Ke6! = (2 .... KF6 3. Nd5 + + -?!)

1 .... gxf4

2. Ng6 f3

3. Ne5 + KG5! (3 .... KG3 4. Nxf3 + -?)

4. Nxf3 +!

4. Kxf3? KF5! 5. Nd7 NC8 =

4 .... KF6

5. KD4!

5. Ne5? Ke6 (7)! =

5 .... KE7

6. KC5 NC8

7. KC6!

7. Nd4 +? Rd7! =

7 .... nd7 +

8. Rb6!

8. KB7? Nb5 !! =

8. KC5? Rd7 9. Rb6 Nb5! ?! = (9 ... Cc6 10. Ne5 + Cxe5 11. KB7 NF7 12. c8 = Q + + - ou

9 .... NC8 +? 10. KB7 ND6 + 11. KB8! + -)

8 .... NC8 +

9. KB7 + -