Jumping

In the following game, Red needs a ladder escape to the bottom ladder:

R10 C10 Q1 Vc2 Hf5 Ve6 He5 Vg5 Hg4 Vd6 Hd5 Vi3 Hh6 Vi4 Hf7 Vf6 Hd8 Vc8 Hb10 Vc9 Hc10 Vd9 Hd10 Ve9 He10 Hg7

Red can get this by going back &mdash; yielding &mdash; one row:

R10 C10 Q1 Vc2 Hf5 Ve6 He5 Vg5 Hg4 Vd6 Hd5 Vi3 Hh6 Vi4 Hf7 Vf6 Hd8 Vc8 Hb10 Vc9 Hc10 Vd9 Hd10 Ve9 He10 Hg7  Vg8 Hg9

Because now i8 is a working ladder escape fork:

R10 C10 Q1 Vc2 Hf5 Ve6 He5 Vg5 Hg4 Vd6 Hd5 Vi3 Hh6 Vi4 Hf7 Vf6 Hd8 Vc8 Hb10 Vc9 Hc10 Vd9 Hd10 Ve9 He10 Hg7  Vg8 Hg9   Vi8 Sj8 Sh9 Si9 Sj9 Sg10 Sh10 Si10 Sj10 Ph8 Pj5