Sudoku/Complete/Models/LargeCell.xaml

<UserControl x:Class="SudokuWeek4.Models.LargeCell"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             Padding="1,1,0,0">
    <UniformGrid Name="bigCellGrid" />
</UserControl>