Lines of single_doc/二解.md from check-in 9148d06d49 that are changed by the sequence of edits moving toward check-in 213ed0577e:

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                         2: <div class="title">二解</div>
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                         4: 「二解」指超越了原残局作者设定血量的解局方法。
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                         6: 一般情况下，残局设定血量就是目前最优解的解局血量。
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9148d06d49 2023-07-05    8: 如果出现了二解，就表明残局设定血量需要更改了。