- Sullukol via the left counterfort of the North face (D. Sukhodolsky's route, cat.4B) The path from the "Adylsu" alp camp (group of 4-5 people) along the Tyutyusu gorge to the initial bivouac on the saddle of the Northern spur of the Western ridge of Sullukol summit is described in route 184. Ascend the Severny Sullukol glacier (departure at 2:00-3:00 am) upwards to the left, bypass the icefall of the glacier from the left and reach a small upper snow plateau above it. From the plateau, bypass large crevices on the left, reach the snow slopes at the foot of the left counterfort of Sullukol's North face. Cross the bergschrund via an avalanche chute and ascend an 80-meter steep snow slope to the left side of the lower rocky ridge of the left counterfort. Ascend simple and moderately difficult, then steeper and more challenging rocks of the ridge (pitons for belay!) 180-200 m up to a flat area at its top. There's a control point on the flat area. It takes 3.5-4 hours from the plateau. From the top of the lower ridge, ascend a steep ice-and-snow 130-meter ridge, then a 60-meter ice slope (pitons for belay!) to reach a wide snow terrace on the right side of the second rocky ridge of the counterfort. Traverse left along the wide, steep terrace and from its end ascend 60 m up (pitons for belay!) monolithic, difficult rocks with few holds on the wall of the second ridge, featuring a 6-meter internal corner and a wide ledge in its middle part, to reach its top. From there, ascend obliquely upwards to the left along icy rocky ledges alternating with small walls, then under the wall of the rocky ascent of the upper ridge of the counterfort. Ascend monolithic rocks of the wall with small snow-covered ledges obliquely upwards to the left (pitons for belay!) to a flat area on the wall. From the flat area, ascend another 15-20 m straight up the wall. Then ascend 50 m up an ice-and-snow couloir to reach the shoulder of Sullukol's Eastern ridge. Bivouac on the shoulder. It takes 14-15 hours from the glacier. From the shoulder, turn right and ascend moderately difficult rocks, then a 40-meter snow ascent of a wide couloir, and further along a simple snow-covered rocky Eastern ridge to reach Sullukol's summit. It takes 1-1.5 hours from the point of reaching the Eastern ridge. Descend via the Western ridge (see route 184). The route takes 4 days. Special equipment for 4 people: main rope - 2 x 40 m, auxiliary cord - 5 m, rock pitons - 15-18, ice pitons - 4-5, rock hammers - 2, carabiners - 10-12, headlamps - 4, helmets - 4, crampons - 4 pairs, tent - 1. Possible bivouac locations - on flat areas, on the ice-and-snow 130-meter ridge, on the Eastern ridge, on the summit, and on the Western ridge.