Petir 4.72 released

[Isaksen]

http://ah.peter.googlepages.com/home
Estimated playing strength : 2550-2650 elo
The author name is Peter Alloysius, 25 years old, born and raised in Surabaya, Indonesia, 12 July 1982

[Tony Thomas]

Petir is a well known engine so everyone knows the name of the author. Thanks for the update by the way.