Portal
|
| name | Code ECO | Parent | place of origin | moves |
|---|---|---|---|---|
| Albin Countergambit | D08–D09 | Queen's gambit | Milan | 1.d4 d5 2.c4 e5 |
| Alekhine's Defence | B02–B05 | Apertura de peón de rey | Hungary | 1.e4 Nf6 |
| Amar Opening | A00 | Modern Defense | France | 1.Nh3 |
| Black Knights' Tango | A50 | Indian Defence | Germany | 1.d4 Nf6 2.c4 Nc6 |
| Budapest gambit | A51–A52 | Indian Defence | Germany | 1.d4 Nf6 2.c4 e5 |
| Catalan opening | E00–E09 | Indian Defence | Barcelona | 1.d4 Nf6 2.c4 e6 3.g3 |
| Danish Gambit | C21 | Danish Gambit | France | 1.e4 e5 2.d4 exd4 3.c3 |
| Grünfeld Defence | D70–D99 | Indian Defence | Slovakia | 1.d4 Nf6 2.c4 g6 3.Nc3 d5 |
| Lisitsin Gambit | A04 | Zukertort Opening | Russia | |
| Mora gambit | B20 or B21[a] | Sicilian defence | 1.e4 c5 2.d4 cxd4 3.c3 |