Chess opening · ECO A00
Kádas Opening: Koola-Koola Variation
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1. h4 a5
Kádas Opening: Koola-Koola Variation is catalogued under ECO code A00. It is reached after 1 move (2 half-moves): 1. h4 a5. After the last move it is White to play. White opens with a less common first move. It is a named variation of the Kádas Opening, which has 9 catalogued lines in total.