Jam Thru

From an 8 chain: all Pass Thru. Then the new centers Pass Thru, 1/4 In, and Pass Thru, while the ends Cross Cloverleaf.

\sxvlines{b3s,g4n,b4s,g1n} \syhlines{g4e,g1w,b1e,b2w}
3 1 4 2 4 2 1 3 4 2 1 3 1 3 2 4
before Jam Thru after