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. 2018 Jun 30;46(17):9181–9188. doi: 10.1093/nar/gky559

Figure 7.

Figure 7.

Three ways Inline graphic can be formed via a single crossing change. This shows how one crossing change on the unknot, Inline graphic or 41 can result in the knot Inline graphic. The double arrows indicate moves that do not change the knot type; they are the Reidemeister moves I, II and III and planar isotopies. The single arrow indicates when a crossing change is made at the highlighted crossing.