William Bosi flashes 8b+ and 8a+ twice: A hat-trick for the history books

William Bosi set a new record in the Czech Republic. Within a day he flashed the Boulder Charizard (8b +), Fénixovy Slzy (8a +) and The Swirl King Sitstart (8a +, FA). And as if that wasn't enough, he combined the first two lineages to recreate Bulbasaur (8c, FA).

The Scot William Bosi are among the strongest climbers in the world. In the Czech Republic he once again demonstrated his extraordinary skills. cheered on by Adam Ondra get him in the bouldering area Sklapsko the lines Charizard (8b +) and Fenixovy Slzy (8a+) – flash of course. He climbed the same style on the same day The Swirl King Sitstart (8a +), with the newly added sit start at the same time a first ascent.

Video: William Bosi flashes Charizard (8b +)

Illustrious group of 8b+ flashers

With his inspection of Martin Stranik Line Charizard now officially includes William Bosi in the elevated circle of 8b+ flashers. Only a few athletes before him managed to climb such difficult boulder flashes, including Adam Ondra with Jade and gecko assis, Daniel Woods with Entlinge, Jimmy Webb with The Globalist, Tomoa Narasaki with Decided, Ned Feehally with Trust Issues or Jakob Schubert with Never Ending Story, Catalan Witness the Fitness and Anam Cara. "I'm incredibly happy to flash my first 8b+ with this Martin Stráník line," said William Bosi after his ascent.

"I am incredibly happy to flash my first 8b+ with this Martin Stráník line."

William Bosi

First ascent at 8c-Linkup

During his trip to the Czech Republic, William Bosi also left a new test piece in the Sklapsko bouldering area. He climbed the Martin Stranik Boulder Charizard (8b +) backwards and got out via Fénixovy Slzy (8a +). He baptized his new creation Bulbasaur and rated them 8c.

Video: Martin Stráník climbs Bosi-Boulder-Bulbasaur

The second ascent was not long in coming. Shortly after William Bosi's First Ascent, Martin Stráník came and secured the first repetition of the boulder. After the failed start of the World Cup in Meiringen, it was refreshing to enjoy this new hard line. "I was able to climb it during my second session because I already knew the second part."

That might interest you

+ + +

Credits: Cover picture Will Bosi

News

A tie in the final: The decision at the German Lead Championships 2026 was that close.

Anna Maria Apel (cover photo) and Yannick Nagel remain Germany's number one in lead climbing. Both successfully defended their titles at the German Championships in Darmstadt. While Apel had to wait anxiously until the very last moment, Nagel set the decisive mark in the men's competition.

Ice climbing and ski touring in Norway: The Mountain Equipment Oreus and Xenith jackets put to the test

Frozen waterfalls, steep approaches, and cold belay stations: Norway is one of the most impressive destinations for ice climbers in Europe – but it also places high demands on equipment and clothing. Ice climber Anna embarked on a winter trip through Norway and tested two models from Mountain Equipment under realistic conditions. In the following review, Anna explains why these jackets complement each other surprisingly well in winter conditions.

Tenzing Norgay: A film about the first person to climb Everest

Since October 16th, Apple TV has been streaming "Tenzing": an Everest film that, for the first time, focuses not on Edmund Hillary, but on Tenzing Norgay. Who was this man whom the world long only knew as a companion – and how close does the film get to him?

More than ever before: Alpine Club awards nine huts with environmental quality seal

On October 17th, the Austrian Alpine Club awarded nine of its mountain huts with the environmental quality seal – more than ever before in a single year. The goal is for at least half of the Austrian Alpine Club's managed huts to carry the seal by 2033.

A tie in the final: The decision at the German Lead Championships 2026 was that close.

Anna Maria Apel (cover photo) and Yannick Nagel remain Germany's number one in lead climbing. Both successfully defended their titles at the German Championships in Darmstadt. While Apel had to wait anxiously until the very last moment, Nagel set the decisive mark in the men's competition.

Ice climbing and ski touring in Norway: The Mountain Equipment Oreus and Xenith jackets put to the test

Frozen waterfalls, steep approaches, and cold belay stations: Norway is one of the most impressive destinations for ice climbers in Europe – but it also places high demands on equipment and clothing. Ice climber Anna embarked on a winter trip through Norway and tested two models from Mountain Equipment under realistic conditions. In the following review, Anna explains why these jackets complement each other surprisingly well in winter conditions.

Tenzing Norgay: A film about the first person to climb Everest

Since October 16th, Apple TV has been streaming "Tenzing": an Everest film that, for the first time, focuses not on Edmund Hillary, but on Tenzing Norgay. Who was this man whom the world long only knew as a companion – and how close does the film get to him?