411 REFERENCE · Wikibooks
Custom Chess Theory/1.d4/1...d5/2.c3/2...c5
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
Estonian Gambit
1. d4 d5 2. c3 c5
This Gambit Resembles a Queen's Gambit, But in reverse.
3.dxc5, accepting is the Normal Variation. Black should play 3... Nf6 - Miraś Gambit. 3...Nc6 Also Works. - Wart Gambit
3.e3, Resembles a Queen's Gambit Declined System
3.Bf4, Playing A London system style.