Bozhena Piddubna is student of Kyiv chess school.[1] She won medals in the Ukrainian Girls' Chess Championships: silver in the G14 age group (2023,[2] 2024[3]) and bronze in G12 age group (2021[4]). She has represented Ukraine several times at the European Youth Chess Championships and World Youth Chess Championships.
In 2023 Bozhena Piddubna won Ukrainian Women's Rapid Chess Championship[5] and finished 2nd in Ukrainian Women's Blitz Chess Championship.[6]
In September 2025 in Kyiv, she won Qualifying tournament to clarify the Ukrainian team member for the European Women's Team Chess Championship.[7]
Bozhena Piddubna played for Ukraine in the European Women's Team Chess Championship:
- In 2025, at reserve board in the 16th European Team Chess Championship (women) in Batumi (+5, =2, -1) and won team and individual silver medals.[8][9]