It produces a typeset PDF. You play by editing a .tex file and compiling with pdflatex. The output is a beautifully typeset chess document (because, after all, it’s still TeX running inside the LaTeX ecosystem).
I’ve got a couple more questions. You said you want to automate or streamline more things if you were doing it commercially. What kind of things?，更多细节参见新收录的资料
，详情可参考新收录的资料
全面停飞将严重打乱全球航班的精密调度。目前，大量飞机与机组人员因领空关闭已偏离原定部署，这意味着即便运营恢复，也可能需要数天时间才能消化航班积压。，更多细节参见新收录的资料
收货人已经行使海上货物运输合同权利但是迟延、拒绝提取货物的，船长可以按照前款规定处理货物，由此产生的费用和风险由收货人承担。