01 · 入门 · 横向通道：只从左、右进出
展开作者解与路线
c2 → c1 → c0 → c3 → c4 → c5
推理依据
- c1 在第 2 步，必须左右直行
关键分叉：第 2 步应走 c1，诱惑路线走 c5。排除依据：进出方向不符。
逐项机制必要性反例
解除 direction:c1 后：c2 → c5 → c4 → c1 → c0 → c3
每格一次。通道图形连接哪两条边，就必须从这两边进出：横线只通左右，竖线只通上下，拐角只通图示两边，均可反向。通道格不能是起终点。
原始盘面和作者解分开展示。标题是设计任务，真人推理路径与难度仍需试玩验证。数字、窗口、方向、类别和开关显示在格内；步差与先后关系见逐关推理依据。
c2 → c1 → c0 → c3 → c4 → c5
关键分叉：第 2 步应走 c1，诱惑路线走 c5。排除依据：进出方向不符。
解除 direction:c1 后：c2 → c5 → c4 → c1 → c0 → c3
c1 → c0 → c3 → c6 → c7 → c4 → c5 → c2
关键分叉：第 2 步应走 c0，诱惑路线走 c2。排除依据：进出方向不符。
解除 direction:c0 后：c1 → c2 → c5 → c4 → c7 → c6 → c3 → c0
c4 → c0 → c1 → c5 → c8 → c9 → c6 → c2 → c3 → c7
关键分叉：第 2 步应走 c0，诱惑路线走 c5。排除依据：进出方向不符。
解除 direction:c5 后：c4 → c5 → c8 → c9 → c6 → c7 → c3 → c2 → c1 → c0
c0 → c4 → c8 → c9 → c10 → c11 → c7 → c6 → c5 → c1 → c2 → c3
关键分叉：第 2 步应走 c4，诱惑路线走 c1。排除依据：进出方向不符。
解除 direction:c5 后：c0 → c1 → c5 → c4 → c8 → c9 → c10 → c11 → c7 → c6 → c2 → c3
解除 direction:c7 后：c0 → c1 → c5 → c6 → c2 → c3 → c7 → c11 → c10 → c9 → c8 → c4
c11 → c10 → c13 → c12 → c9 → c8 → c4 → c0 → c1 → c2 → c3 → c7 → c6 → c5
关键分叉：第 10 步应走 c2，诱惑路线走 c5。排除依据：进出方向不符。
解除 direction:c1 后：c11 → c10 → c13 → c12 → c9 → c8 → c4 → c0 → c1 → c5 → c6 → c2 → c3 → c7
解除 direction:c4 后：c11 → c10 → c13 → c12 → c9 → c8 → c4 → c5 → c6 → c7 → c3 → c2 → c1 → c0
解除 direction:c10 后：c11 → c7 → c3 → c2 → c1 → c0 → c4 → c8 → c9 → c5 → c6 → c10 → c13 → c12
c8 → c4 → c0 → c1 → c5 → c9 → c10 → c6 → c2 → c3 → c7 → c11 → c15 → c14 → c13 → c12
关键分叉：第 5 步应走 c5，诱惑路线走 c2。排除依据：进出方向不符。
解除 direction:c2 后：c8 → c4 → c0 → c1 → c2 → c3 → c7 → c6 → c5 → c9 → c10 → c11 → c15 → c14 → c13 → c12
解除 direction:c4 后：c8 → c12 → c13 → c14 → c15 → c11 → c7 → c3 → c2 → c6 → c10 → c9 → c5 → c1 → c0 → c4
解除 direction:c13 后：c8 → c4 → c0 → c1 → c5 → c6 → c2 → c3 → c7 → c11 → c15 → c14 → c10 → c9 → c13 → c12
c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c17 → c16 → c13 → c9 → c10 → c6 → c5 → c4 → c8 → c12
关键分叉：第 3 步应走 c2，诱惑路线走 c5。排除依据：进出方向不符。
解除 direction:c2 后：c0 → c1 → c5 → c4 → c8 → c12 → c13 → c9 → c10 → c6 → c2 → c3 → c7 → c11 → c15 → c14 → c17 → c16
解除 direction:c4 后：c0 → c4 → c8 → c12 → c13 → c9 → c10 → c6 → c5 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c17 → c16
解除 direction:c7 后：c0 → c1 → c2 → c3 → c7 → c6 → c5 → c4 → c8 → c12 → c13 → c9 → c10 → c11 → c15 → c14 → c17 → c16
解除 direction:c9 后：c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c17 → c16 → c13 → c12 → c8 → c4 → c5 → c6 → c10 → c9
c13 → c9 → c5 → c6 → c10 → c11 → c15 → c14 → c18 → c17 → c16 → c12 → c8 → c4 → c0 → c1 → c2 → c3 → c7
关键分叉：第 1 步应走 c13，诱惑路线走 c2。排除依据：进出方向不符。
解除 direction:c1 后：c2 → c3 → c7 → c6 → c10 → c11 → c15 → c14 → c18 → c17 → c16 → c12 → c8 → c4 → c0 → c1 → c5 → c9 → c13
解除 direction:c9 后：c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c18 → c17 → c16 → c12 → c8 → c4 → c5 → c6 → c10 → c9 → c13
解除 direction:c16 后：c16 → c17 → c18 → c14 → c15 → c11 → c10 → c6 → c7 → c3 → c2 → c1 → c0 → c4 → c5 → c9 → c13 → c12 → c8
解除 direction:c18 后：c5 → c9 → c13 → c14 → c15 → c11 → c10 → c6 → c7 → c3 → c2 → c1 → c0 → c4 → c8 → c12 → c16 → c17 → c18