Tricky, assuming some accuracy in the scale of your drawing the trench is around half a meter across which means your front wheel wants to be climbing out while your back wheel is still descending. Riding a diagonal traverse could work if gradient and grip allow it, but if not you're just gonna slide, and if you slide near the top you're gonna slide a long way.
I'd try to roll in straight but lock the rear and slide in sideways at the end, leaving me riding along the trench. The trouble now is that climbing out on a traverse, on what is drawn as a very steep lip, is also gonna be hard. There might be a chance to ride along to a more forgiving line out. If not, or if the more forgiving line is still challenging, I might try to roll the front up the foot of the first slope before turning back towards the climb out to try and hit it as square as possible.
Obviously, there would be some unweighting/popping of the front, followed by rocking forward to haul the rear over, or actually sitting back for traction and powering out; depends on the exact nature of the slope where you climb out and how fast you hit it.
Plenty of places to fail there, but (I hope!) not too easy to get hurt!