Tried barring the 10s with your first finger and fret 11 and 12 with the remaining fingers (I prefer using middle and ring finger)? Simply slide to the next chord with the same shape.
I hate it.
Can't do this chord properly.
--10----8----
--10----8----
--11----9----
--12----10---
ukelele?
Seriously though, you're talking about a stretch across two frets! Either your very young and/or very new to guitar playing.
Can you do a normal C chord? That requires an even further stretch! Perhaps it's an issue with your barre-ing technique?
RoRK
Guitar.
I just started 2 months ago, 14 going 15 years old.
I slightly got the hang of it already, been practising for 1 hour.