THE ‘administrator’ of a sick suicide game named Blue Whale has been traced by police back to a Moscow postman. And he allegedly had more than 30 schoolgirls under his spell.

Ilya Sidorov, 26, has reportedly confessed he had conceived and created a social media game which set youths a series of increasingly risky dares — ending in their own suicides.

Police questioned Sidorov over allegedly instructing a 13-year-old girl in the remote village of Yetkul to jump under a passenger train.

The girl had been taken to hospital with cut wounds from an attempted suicide. Previous tasks he had allegedly set her included outlining a blue whale on her arm and inflicting self-harm.

Sidorov allegedly broke down under interrogation, admitting to ‘administrating’ a broader online ‘Blue Whale’ challenge.

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Sidorov has since been detained and extradited to Chelyabinsk in the Urals where he faces charges relating to inciting the schoolgirl’s death.

A police spokeswoman said mobile phones, a tablet computer and several SIM cards had been seized as evidence.

“The suspect clarified that he is the administrator of a so-called suicide group that had 32 members, all of them underage,” she said. “He assigned them tasks aimed at inuring themselves in order to incite suicide.”

But Sidorov is not the only suicide-game ‘administrator’ to have been arrested.

Philipp Budeikin, 21, is also being held by Russian police, charged with coaxing up to 16 schoolgirls to kill themselves.

The suicide game got its name from the way whales appear to beach themselves deliberately.

Its popularity has spread beyond the bounds of Russia, with related suicide attempts being reported in Spain, Portugal, France and Britain.

If you or someone you love is in crisis or needs support right now, please contact Lifeline on 13 11 14 or Suicide Call Back Service 1300 659 467.

Young people aged 5 to 25 years can call Kids Helpline on 1800 55 1800