Yu Bin a brief introduction to the discussion group with the Coal line of basic information, focusing on the situation on the comprehensive utilization of coal enterprises are introduced.

于斌向课题组一行简要介绍了同煤集团的基本情况，重点就企业煤矸石的综合利用情况作了介绍。

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Study games, played by Kobayashi Koichi, Yu Bin, Lee Changho, Paek Yeonghun and follow their ideas.

可以学习一下小林光一、俞斌、李昌镐、朴永训的棋谱，体会他们的思路。

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