E20 is the opening Nimzo-Indian Defense of the volume E · Indian defences: 6 half-moves to the position in the diagram, 7 variations in the ECO table.
What the games say
3,283 games in the collections, from 1850 to 2022. Mean rating of the games with ratings: 2463.
White wins 34 %, draws 40 %, Black wins 26 %
Most games: Moiseenko, Alexander (66), Ward, Christopher (56), Miladinovic, Igor (55), Volkov, Sergey (46), Moskalenko, Viktor (44)
All 7 variations
- Nimzo-Indian Defense 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4
- Nimzo-Indian Defense: Dilworth Gambit 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.e4
- Nimzo-Indian Defense: Kmoch Variation 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.f3
- Nimzo-Indian Defense: Mikenas Attack 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.♕d3
- Nimzo-Indian Defense: Romanishin Variation 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.g3
- Nimzo-Indian Defense: Romanishin Variation 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.♘f3 c5 5.g3 O-O 6.♗g2
- Nimzo-Indian Defense: Romanishin Variation, English Hybrid 1.d4 ♘f6 2.c4 e6 3.♘c3 ♗b4 4.♘f3 c5 5.g3 cxd4 6.♘xd4 O-O 7.♗g2 d5 8.cxd5 ♘xd5