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第二轮 - 传统谜题 - 第2题 数回 Draw a single closed loop into the grid so that it does not touch or cross itself. A number in a cell indicates the number of sides of that cell occupied by the loop. 将点与点横向或纵向相连接，形成一条回路，回路不能交叉或接触自身，提示数表示其周围四边属于回路的边有几条。 2-1 [在线玩链接] 题目难度不大，解析略。
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第二轮 - 传统谜题 - 第1题 数墙 Shade some empty cells black so that the grid is divided into white areas, each containing exactly one number and with an area in cells equal to the value of that number. Two white areas may only touch diagonally. All black cells must be connected with each other, but no 2 x 2 square of cells can be entirely shaded black. 将数盘内的一些方格涂黑。已标示有数字的方格不可涂黑。每个数字是一个岛，代表数字四周白色方格的数目（含有数字格子）；每一个小岛内必须有且仅有一个数字。所有黑格以横向纵向相连形成一个不间断的网络，任意2×2区域不能同时被涂黑。 1-1 [在线玩链接] 本题难度不大，利用左侧黑格和右侧黑格的连通即可完成。
