Unlike chess, chess.

Variant chess. Variant chess, also known as alternative chess, or xinqi and variant chess, is usually based on China chess or chess, which is similar to chess but not like chess through innovation, creation, combination, improvement, expansion, strengthening, reduction or simplification, such as combination chess, number chess, two-ball chess, four-nation chess, new China chess, dragon chess, golden cicada chess, camel chess and camel chess.