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The Foxes And Geese
Answer :

The smallest possible number of moves is twenty-two—that is, eleven for the foxes and eleven for the geese.

Here is one way of solving the puzzle:

10—5 11—6 12—7 5—12 6—1 7—6
—— —— —— —— —— ——
1—8 2—9 3—4 8—3 9—10 4—9
12—7 1—8 6—1 7—2 8—3
—— —— —— —— ——
3—4 10—5 9—10 4—11 5—12

Of course, the reader will play the first move in the top line, then the first move in the second line, then the second move in the top line, and so on alternately.


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