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Muhammed Muheisen, Associated Press
In this Dec. 14, 2011 photo, Victor Koslov, the leader of the Russian expedition to K2, gestures during an interview in Islamabad, Pakistan. Summiting K2 in summer is one of mountaineering's most deadly and difficult challenges. Now, a team of Russians is attempting what no other has yet achieved: Scaling the peak in winter.

ISLAMABAD — Reaching the summit of K2 in summer is one of mountaineering's most deadly and difficult challenges.

Now, a team of Russians is attempting what no other has yet achieved — scaling the world's second highest peak in winter.

The 15 climbers will endure temperatures plunging more than 50 below zero and winds of up to 70 kilometers an hour (40 miles per hour) as they inch up the stunning giant pyramid that straddles Pakistan and China. The assault is expected to take 2 1/2 months.

"This is only possible for a Russian team," said Victor Kozlov, the affable leader of the expedition, whose members put up a new route on K2 in 2007. "God willing, we can make it," he said this week in the Pakistani capital, ahead of his journey to the Karakoram range in the far north of the country.

Winter ascents of the world's 14 highest mountains are some of most prized achievements left in climbing.

The "eight-thousanders," as they're known since they all top 8,000 meters (5 miles), were all conquered in summertime long ago. Amid a crowded field where each year hundreds pay around $80,000 to be guided up Everest, winter ascents can help a climber stand out and get his or her name in the history books.

Winter climbers have been summitting the 14 one by one the past decades — starting with Everest — but peaks of the Karakorum remained unconquered. The range is further north than the Himalayas, where Everest is located, and thus sees harsher winters. K2 is the northernmost peak of the lot.

Teams attempted winter ascents in the Karakorum 16 times in recent years. The first success came this year, when a three-member team including American Cory Richards summitted Gasherbrum II. That left only four peaks, three of them in the Karakorum and one nearby in the Himalayas.

"If they make it up K2 in winter, it will be huge," said Billi Bierling, a mountaineering journalist with three "eight thousanders" to her name, including Everest.

Elite mountaineers thrive on first ascents, new routes on established peaks and climbing in the "purest style" possible. That typically means no porter assistance high up on the slopes, no oxygen bottles or no reliance on fixed ropes left by other parties.

The Russians, who start their ascent around Christmas, are not using oxygen and will have porters at base camp only. Their gear and food — including three freshly slaughtered yaks and, according to Kozlov, a little vodka — is being flown in by Pakistani army helicopters charging more than $7,000 an hour.

Winter climbing means less daylight and temperatures around twice as cold as summer, making frostbite more of a danger. Living conditions at base camp are more miserable, winds are more vicious, there is more snow, greater avalanche risk and climbers need more food and equipment to stay alive.

The one plus: "The mountains are less crowded," said Bierling.

By the mid 1960s, all of the world's tallest 14 mountains had seen summer ascents.

A Polish team was first up an "eight-thousander" in winter, topping out on Everest in February 1980. The triumph set the stage for a decade of other successful expeditions, mostly by a group Polish climbers nicknamed "The Ice Warriors."

The Russians intend to follow the "Cesen" route up K2 before venturing to the 8,611-meter summit from a face that has never been climbed, hoping it will allow them to avoid the worst of the wind. They plan to fix ropes and establish camps up the mountain. They will then wait for a window of clear weather, at most a few days sometime in February or early March, and make a summit dash.

K2 is renowned for terrible, unpredictable weather and steeper slopes than Everest. In the summer of 2008, 11 climbers died in an avalanche, the deadliest incident on a peak that has the second-highest fatality rate among the "eight-thousanders." More than 300 have reached the top, but at least 80 have died trying.

Andrzej Zawada, the Polish climber who made Everest's first winter ascent, tried K2 in 1987.

In a written account, he said that from the end of December there was so much snow at base camp they had to dig tunnels to get into their tents. In 80 days on the mountain, they had just 10 days of good weather. They retreated after reaching a high point of 7,300 meters, frostbitten, their tents and ropes ripped off the mountain in the wind.

"We did everything that was humanly possible in those inhospitable conditions," he wrote. "We were simply powerless in the face of such dangerous, formidable and life threatening elements which people have to confront in the highest mountains."

Ashraf Aman, the first Pakistani climber to summit K2, said he thought the Russians stood a chance.

"They are a strong team, and experienced, but it depends on the weather," he said.

He urged them to be fearless: "If you face death in the face, it will run away like a dog."

There are two other expeditions elsewhere in the Karakorams this winter.

Pakistan has long welcomed foreign mountaineering expeditions, which bring cash and jobs into one of the country's poorest regions. While climbers are hardy types, the spike in Islamist terrorism in the country over the last five years has led to a sharp drop in arrivals, said Naiknam Karim, from Adventure Tours Pakistan, which is organizing the Russian push.

"The biggest hurdle is the law and order situation and the perception outside the country," he said. "Sometimes the climbers want to come, but their families don't allow it."


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