The KIDScore D3 tool provides decision support for prediction of likelihood of embryos developing to the blastocyststage by scoring them according to their statistical viability.Adjunctive information provided by KIDScore D3 aids in the selection of embryo(s) for either transfer on Day 3, freezingor continued embryo development when, following morphological assessment on Day 3, there are multiple embryosdeemed suitable for transfer or freezing.The KIDScore D3 tool is only to be used with the EmbryoScope and EmbryoScope+ timelapse incubator systems.