A55 is the opening Old Indian Defense: Normal Variation of the volume A · Flank openings: 9 half-moves to the position in the diagram, 1 variations in the ECO table.
What the games say
2,644 games in the collections, from 1903 to 2022. Mean rating of the games with ratings: 2414.
White wins 44 %, draws 35 %, Black wins 20 %
Most games: Espig, Lutz (101), Hickl, Joerg (86), Malaniuk, Vladimir P (48), Vukic, Milan (47), Zapata, Alonso (34)
All 1 variations
- Old Indian Defense: Normal Variation 1.d4 ♘f6 2.c4 d6 3.♘c3 ♘bd7 4.e4 e5 5.♘f3