Shuttle
<direction>
, Shuttle
<anything>
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From an 8 chain: all Pass Thru. The centers Slide Thru while the ends Quarter in the given direction, or take the given call. If no direction is given, they do nothing.
\sxvlines{b3s,g3n,b4s,g4n}
\sxvlines{g3w,g4w,b3w,b4e}
3
1
3
1
4
2
4
2
3
1
4
2
3
1
4
2
before Shuttle Left
after
\sxvlines{b3s,g3n,b4s,g4n}
\syhlines{g1e,b1e,g4w,b2w}
3
1
3
1
4
2
4
2
1
3
1
3
4
2
2
4
before Shuttle Sidetrack
after