(1) 无国际象棋 Anti-Chess
所有格都不能和另一些格相等,一般是通过国际象棋能到达的另一格。All the numbers cannot be equal to other several cells. Usually another cell, which can be arrived by one-step Chess.
∎无象Anti-Elephant
(2) 不连续 Non-Consecutive
所有格都不能和另一些格连续。All the numbers cannot be consecutive with some other cells.
∎斜不连续Diagonal Non-Consecutive
(3) 基于其他规则 Basic on other rules
在另一种规则上,所有数字受到某种限制。Basic on another variants, all the numbers are limitted.
✿相亲Disparity
✿奇偶对称Symmetrical
(4) 部分数字限制 Not all numbers limitted
只有达成某种条件的所有数字受到限制。Only all the numbers fit the rules are limitted.
✿9无后9-Anti-Queen
✿海盗Pirate
(5) 其他 Others
✿镜面Mirror
✿无四No Four
✿不平均Non-Average