110.--_Ovid's Game._

The solution here is: The first player can always win, provided he plays

to the centre on his first move. But a good variation of the game is to

bar the centre for the first move of the first player. In that case the

second player should take the centre at once. This should always end in a

draw, but to ensure it the first player must play to two adjoining

corners (such as 1 and 3) on his first and second moves. The game then

requires great care on both sides.

The Canterbury Puzzles, and Other Curious Problems · 第 281 / 286 题