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Возврат к головоломкам

Сколько коней нужно, чтобы атаковать всю доску? Чтобы контролировать всю доску?

Ответ: Четырнадцать коней, чтобы атаковать все клетки доски:

 1 2 3 4 5 6 7 8
 ___ ___ ___ ___ ___ ___ ___ ___
h | | | | | | | | |
 --- --- --- --- --- --- --- ---
g | | | N | N | N | N | | |
 --- --- --- --- --- --- --- ---
f | | | | | | | | |
 --- --- --- --- --- --- --- ---
e | | N | N | | | N | N | |
 --- --- --- --- --- --- --- ---
d | | | | | | | | |
 --- --- --- --- --- --- --- ---
c | | N | N | N | N | N | N | |
 --- --- --- --- --- --- --- ---
b | | | | | | | | |
 --- --- --- --- --- --- --- ---
a | | | | | | | | |
 --- --- --- --- --- --- --- ---
 Можно воспользоваться таким вариантом:
 1 2 3 4 5 6 7 8
 ___ ___ ___ ___ ___ ___ ___ ___
h | | | | | | | | |
 --- --- --- --- --- --- --- ---
g | | | N | | | N | | |
 --- --- --- --- --- --- --- ---
f | | | N | N | N | N | | |
 --- --- --- --- --- --- --- ---
e | | | | | | | | |
 --- --- --- --- --- --- --- ---
d | | | N | N | N | N | | |
 --- --- --- --- --- --- --- ---
c | | N | N | | | N | N | |
 --- --- --- --- --- --- --- ---
b | | | | | | | | |
 --- --- --- --- --- --- --- ---
a | | | | | | | | |
 --- --- --- --- --- --- --- ---
 Чтобы контролировать (атаковать, либо занимать) все клетки доски, достаточно 12 коней:
 1 2 3 4 5 6 7 8
 ___ ___ ___ ___ ___ ___ ___ ___
a | | | | | | | | |
 --- --- --- --- --- --- --- ---
b | | | N | | | | | |
 --- --- --- --- --- --- --- ---
c | | | N | N | | N | N | |
 --- --- --- --- --- --- --- ---
d | | | | | | N | | |
 --- --- --- --- --- --- --- ---
e | | | N | | | | | |
 --- --- --- --- --- --- --- ---
f | | N | N | | N | N | | |
 --- --- --- --- --- --- --- ---
g | | | | | | N | | |
 --- --- --- --- --- --- --- ---
h | | | | | | | | |
 --- --- --- --- --- --- --- ---

Created/Updated: 25.05.2018

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