7.8
3 GMIS邀请您通过Daily Chess Problem来发展国际象棋技能。
3个国际大师邀请您通过选定的Daily Chess Problem来发展国际象棋技能。
选择一个问题,
尝试通过拖放碎片来解决它,
并得到帮助。
每天都有一个新问题!
这是免费的第一个版本,因此请反馈以改进它。
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