JBlock.cs

namespace Tetris
{
    public class JBlock : Block
    {
        public override int Id => 2;

        protected override Position StartOffset => new Position(0, 3);

        protected override Position[][] Tiles => new Position[][] {
            new Position[] {new Position(0, 0), new Position(1, 0), new Position(1, 1), new Position(1, 2)},
            new Position[] {new Position(0, 1), new Position(0, 2), new Position(1, 1), new Position(2, 1)},
            new Position[] {new Position(1, 0), new Position(1, 1), new Position(1, 2), new Position(2, 2)},
            new Position[] {new Position(0, 1), new Position(1, 1), new Position(2, 1), new Position(2, 0)}
        };
    }
}