= Oriented bond percolation
{title2=$p_c^{\mathrm{bond}}$}
Independently open the bonds of a <directed graph> with a common <probability> $p$, and ask whether an infinite open directed path starts at a specified root. On the oriented <square lattice>, edges run from $(x,n)$ to $(x\pm1,n+1)$ with $x+n$ even. The critical probability is the infimum of parameters with positive survival probability. The <incoming-edge coupling of site and bond percolation> compares this threshold with that of <oriented site percolation>.
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