Position 461

 How should White play 63 here:

You can escape your rear most checker by playing 22/13:

But you will still be behind in the race. You are decreasing your contact when you should be keeping it at the maximum.

Consider 13/4:

This brings another checker into the zone to attack Black’s rear most checkers. The problem with this play is that you will only have 8 checkers in the zone and you need more to be able to launch a successful attack.

Also, Black would like to escape into the outfield as they are ahead in the race. This move does nothing to make it awkward for Black to move into the outfield.

Consider 13/7 13/10:

This attempts to create a prime, but let’s Black hit you from the bar with 53, 52, 51, 43 and 61. That is 10 rolls or 28% of the time.

Consider 13/10 22/16:

This move puts another checker into your outfield, meaning that if Black moves out into your outfield, they will be coming into a double shot.

It also gives you more chances to make your 9, 8 or 7 points. As you are behind in the race, it will be good to play a blocking game.

This is the correct move.