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22053c2c BA |
1 | p.boxed |
2 | | Click on an empty square to start the game. | |
3 | | The first player unable to move the knight loses. | |
4 | ||
5 | p. | |
6 | White puts a knight on any square of an empty chessboard. | |
7 | Black moves the knight, and its initial square vanish: | |
8 | the knight will no longer be able to land on that square. | |
9 | Play alternates, always with the vanishing initial square condition. | |
10 | The first player unable to make a move loses. | |
11 | ||
12 | figure.diagram-container | |
13 | .diagram | |
14 | | fen:3xx2x/1x1xNxx1/2xxxxxx/xxxxxx2/2xxxxx1/x1xxxx2/1xxxxx2/1x2xx2 g8,c8: | |
15 | figcaption Ng8 wins, but Nc8 loses because it allows Na7. | |
16 | ||
17 | p | |
18 | | Note about the name: when the game ends, the knight has walked on an | |
19 | a(href="https://en.wikipedia.org/wiki/Hamiltonian_path") Hamiltonian path | |
20 | | considering the subgraph formed by all the removed squares | |
21 | | plus the final square. | |
22 | ||
23 | p | |
24 | | Inventor: David Silverman (1971) according to | |
25 | a(href="https://www.jsbeasley.co.uk/encyc.htm") | |
26 | | The Classified Encyclopedia of Chess Variants | |
27 | | . The game idea is probably quite older. |