flower, two stylized "dai" (大) characters, extracted from the kanjis of professional sumo (ōzumo, 大相撲), can be seen. The logo was created in 1909 for the opening of the first Ryōgoku Kokugikan. This symbol can be found in various places when the Association holds celebration. It can be mainly seen on the tsuriyane'''s (suspended roof above the dohyō) curtains (called mizuhiki, 水引). Ukiyo-e In 1985, the Japan Sumo Association created a partnership with nishiki-e artist in the hope of reviving old sumo ukiyo-e works. He collaborated on the official ebanzuke. His portraits of wrestlers are sold at the Ryōgoku Kokugikan. Mascots On August 31, 2009, the Japan Sumo Association unveiled a group of official mascots under the title . Designed to get more children interested in the sport, the characters are chickens (鶏, which can be read as とり, tori in Japanese) as chicken are considered good luck in sumo. A chicken walks on two legs, not four; similarly, a sumo wrestler loses the match if he is knocked off his feet and touches the ground with his hands or any part of his body. The characters compete in sumo and are centered around main character , a pun on hiyo (ひよ) meaning chick, and his rival . YouTube channels The Japan Sumo Association launched its first YouTube channel on November 5, 2018, with content all in Japanese language. The channel offers light-hearted and humoristic videos, such as a golf competition between former yokozuna Hakuho, Kisenosato and Kakuryu or Chanko-nabe receipes with small skits featuring low-ranking wrestlers. It also provides more serious contents with insights on ceremonies held in the Kokugikan, such as the consecration of the dohyo before each tournaments or danpatsu-shiki (hair cutting ceremony). Old tournaments are also regularly reruned on the channel. In August 2022, the association launched an English-language YouTube channel called Sumo Prime Time in hopes of drawing a larger international audience to the sport. This new channel, presented by former NHK sumo sportscaster , provides basic sumo explanations such as rikishi routine or training and kimarite moves. It also provides exclusive interviews of oyakata and rikishi, generally the winner of the previous tournament. The general tone of the channel is light-hearted. Partnerships In October 2021, the Japan Sumo Association formed a partnership with the Pokémon company to celebrate the 25th anniversary of Pokémon Red and Blue. During the Wanpaku National Championship (a kid sumo