Daeth cannoedd o ferched 12 a 13 mlwydd oed o bob cwr o Gymru at ei gilydd dros y penwythnos i roi prawf ar eu sgiliau seiber mewn cyfres o heriau torri-cod hwyl a chyffrous. Y wobr oedd lle yn y rownd derfynol ac ar ôl diwrnod o ddatrys problemau cyhoeddwyd mai Ysgol Eglwys Gadeiriol Llandaf oedd yr enillwyr dros Gymru.
Hundreds of girls aged 12 and 13 from across Wales came together over the weekend to put their cyber skills to the test in a series of fun and exciting codebreaking challenges. Up for grabs was a place in the national final and after a day of problem solving the Cathedral School in Llandaff was announced as Wales’ winners.