A23 is the opening English Opening: King's English Variation, Two Knights Variation, Keres Variation of the volume A · Flank openings: 6 half-moves to the position in the diagram, 2 variations in the ECO table.
What the games say
461 games in the collections, from 1903 to 2021. Mean rating of the games with ratings: 2412.
White wins 35 %, draws 31 %, Black wins 34 %
Most games: Miezis, Normunds (14), Keres, Paul (12), Markowski, Tomasz (8), Raetsky, Alexander (7), Garcia, Gildardo (6)
All 2 variations
- English Opening: King's English Variation, Two Knights Variation, Keres Variation 1.c4 e5 2.♘c3 ♘f6 3.g3 c6
- English Opening: King's English Variation, Two Knights Variation, Keres Variation 1.c4 e5 2.♘c3 ♘f6 3.g3 ♗c5 4.♗g2 c6