411 REFERENCE · Wikibooks
Custom Chess Theory/1.d4/1...d5/2.Kd2/2...Nc6
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
2...Nc6 develops the knight toward the center, increases pressure on d4, and takes advantage of White's unusual 2.Kd2?! by allowing Black to develop naturally while White's king remains exposed.