01 · 入门 · A 必须先于 B
展开作者解与路线
c2 → c5 → c4 → c3 → c0 → c1
推理依据
- c5 先于 c0，作者步号 2<5
关键分叉：第 2 步应走 c5，诱惑路线走 c1。排除依据：标记次序不符。
逐项机制必要性反例
解除 order:0:0 后：c2 → c1 → c0 → c3 → c4 → c5
每格一次。链中的标记必须依次访问，例如 A < B < C；相隔几步不受限制。
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 → c5 → c4 → c3 → c0 → c1
关键分叉：第 2 步应走 c5，诱惑路线走 c1。排除依据：标记次序不符。
解除 order:0:0 后：c2 → c1 → c0 → c3 → c4 → c5
c3 → c0 → c1 → c2 → c5 → c4 → c7 → c6
关键分叉：第 2 步应走 c0，诱惑路线走 c6。排除依据：标记次序不符。
解除 order:0:0 后：c3 → c6 → c7 → c4 → c5 → c2 → c1 → c0
c8 → c9 → c6 → c5 → c4 → c0 → c1 → c2 → c3 → c7
关键分叉：第 2 步应走 c9，诱惑路线走 c5。排除依据：标记次序不符。
解除 order:0:0 后：c8 → c5 → c4 → c0 → c1 → c2 → c3 → c7 → c6 → c9
解除 order:0:1 后：c8 → c9 → c6 → c7 → c3 → c2 → c1 → c0 → c4 → c5
c9 → c8 → c4 → c0 → c1 → c5 → c6 → c10 → c11 → c7 → c3 → c2
关键分叉：第 2 步应走 c8，诱惑路线走 c10。排除依据：标记次序不符。
解除 order:0:0 后：c9 → c10 → c11 → c7 → c3 → c2 → c6 → c5 → c1 → c0 → c4 → c8
解除 order:1:0 后：c9 → c8 → c4 → c0 → c1 → c5 → c6 → c2 → c3 → c7 → c11 → c10
c5 → c6 → c2 → c1 → c0 → c4 → c8 → c9 → c12 → c13 → c10 → c11 → c7 → c3
关键分叉：第 2 步应走 c6，诱惑路线走 c1。排除依据：标记次序不符。
解除 order:0:0 后：c5 → c1 → c0 → c4 → c8 → c9 → c12 → c13 → c10 → c6 → c2 → c3 → c7 → c11
解除 order:1:0 后：c5 → c6 → c10 → c13 → c12 → c9 → c8 → c4 → c0 → c1 → c2 → c3 → c7 → c11
c6 → c5 → c9 → c10 → c14 → c15 → c11 → c7 → c3 → c2 → c1 → c0 → c4 → c8 → c12 → c13
关键分叉：第 2 步应走 c5，诱惑路线走 c2。排除依据：标记次序不符。
解除 order:0:0 后：c6 → c2 → c3 → c7 → c11 → c15 → c14 → c10 → c9 → c5 → c1 → c0 → c4 → c8 → c12 → c13
解除 order:0:1 后：c6 → c5 → c9 → c10 → c11 → c15 → c14 → c13 → c12 → c8 → c4 → c0 → c1 → c2 → c3 → c7
c16 → c17 → c14 → c13 → c12 → c8 → c4 → c0 → c1 → c5 → c9 → c10 → c6 → c2 → c3 → c7 → c11 → c15
关键分叉：第 2 步应走 c17，诱惑路线走 c13。排除依据：标记次序不符。
解除 order:0:0 后：c16 → c13 → c12 → c8 → c9 → c5 → c4 → c0 → c1 → c2 → c3 → c7 → c6 → c10 → c11 → c15 → c14 → c17
解除 order:0:1 后：c16 → c17 → c14 → c15 → c11 → c10 → c9 → c13 → c12 → c8 → c4 → c5 → c6 → c7 → c3 → c2 → c1 → c0
解除 order:1:0 后：c16 → c17 → c14 → c15 → c11 → c7 → c3 → c2 → c1 → c0 → c4 → c5 → c6 → c10 → c9 → c8 → c12 → c13
解除 order:1:1 后：c16 → c17 → c14 → c13 → c12 → c8 → c4 → c0 → c1 → c2 → c3 → c7 → c6 → c5 → c9 → c10 → c11 → c15
c8 → c12 → c16 → c17 → c13 → c9 → c10 → c6 → c5 → c4 → c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c18
关键分叉：第 1 步应走 c8，诱惑路线走 c13。排除依据：标记次序不符。
解除 order:0:0 后：c13 → c17 → c16 → c12 → c8 → c9 → c10 → c6 → c5 → c4 → c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c18
解除 order:0:1 后：c18 → c17 → c16 → c12 → c8 → c9 → c10 → c6 → c5 → c4 → c0 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c13
解除 order:1:0 后：c0 → c4 → c8 → c12 → c13 → c9 → c10 → c6 → c5 → c1 → c2 → c3 → c7 → c11 → c15 → c14 → c18 → c17 → c16
解除 order:1:1 后：c16 → c12 → c8 → c4 → c5 → c6 → c10 → c9 → c13 → c17 → c18 → c14 → c15 → c11 → c7 → c3 → c2 → c1 → c0