China, November,18 - The semi-final of the championship for boxing took place in the city Minyan. Russian boxers Alexey Tichenko, Habib Allahverdiev, Matvey Korobov, Alexander Alexeev and Roman Romanchuk went to the semi-final. The Olympic champion Alexey Tichenko won over the Kazakh Berik Serikbayev with the score 30:10. Habib Allahverdiyev defeated the Hungarian Tibor Dudash with the score 45:27. One more finalist Matvey Korobov taking part in the category of boxers with weight less than 75kg conquered the Irish Darren Sazerland - 35:15. Heavy-weights Alexander Alexeev and Roman Romanchuk needed only one round to win their opponents.