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## 'Slippery Snail' printed from http://nrich.maths.org/

This is a game for two players. You will need a game board and
four counters (or coins). You can print out this copy . If you are
drawing it yourself, count the spots carefully.

In the interactive game below, four blue counters are placed on
certain red spots on a spiral.

Players take turns to move any counter, moving out towards the
snail's tail (the white spot).

A counter can only be moved by sliding it ahead 1, 2 or 3
spots.

Counters cannot jump on or pass each other.

When a counter reaches the tail (the white spot), it slides off and
is out of the game.

The winner is the player who slides the last counter off the
snail.

This text is usually replaced by the Flash movie.

Can you find any strategies that might help you to win?

You might wish to change the settings to make analysing it
easier.

In the interactive Slippery Snail game below, you first choose the
number of red spots and the locations of the blue counters before
the game begins. You can also increase the maximum number of steps
a blue counter can make on each move.

This text is usually replaced by the Flash movie.

Could it make a difference who goes first?

What happens if there are more or fewer spots to start
with?

Does it matter if the counters begin in different
places?