Tuesday 30 August 2016

Visiting all edges of the board 3

P. Quindt
Feenschach (tt)
1954
1st Prize

Draw

1. Nf1+ Kh3 2. Ng1+ Kg4 3. Nh2+ Kg5 4. Nh3+ Kh6 5. Ng4+ Kh7 6. Ng5+ Kg8 7. Nh6+ Kf8 8. Nh7+ Ke7 9. Ng8+ Kd7 10. Nf8+ Kc8 11. Ne7+ Kb8 12. Nd7+ Ka7 13. Nc8+ Ka6 14. Nb8+ Kb5 15. Na7+ Kb4 16. Na6+ Ka3 17. Nb5+ Ka2 18. Nb4+ Kb1 19. Na3+ Kc1 20. Na2+ Kd2 21. Nb1+ Ke2 22. Nc1+ Kf1 23. Nd2+ Kg1 24. Ne2+ Kh2 25. Nf1+ perpetual check

Both white knights visit every files and ranks of the board! Every edge is visited exactly twice by each knight. For this task, the author used an initial position with several promoted black knights...

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