Five divisions, each of eight engines, played two or more ‘DRR’ double round robin phases each, with promotions and relegations following. Classic tempi gradually lengthened and the Premier division’s top two engines played a 100-game match to determine the Grand Champion. The strategy for the selection of mandated openings was finessed from division to division. The revised TCEC engine lineup is illustrated and listed in Fig. 1 and Table 1.

中文翻译：

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TCEC12：第12届顶级国际象棋引擎锦标赛

五个部门，每个部门有八个引擎，每个部门都进行了两个或更多的“DRR”双循环赛阶段，随后是晋级和降级。经典节奏逐渐拉长，英超赛区前两名引擎进行了100场比赛，决出总冠军。选择强制空缺的策略从一个部门到另一个部门都经过精心设计。修改后的 TCEC 发动机阵容如图 1 和表 1 所示。