Combinatorial game theory has many ways of measuring game complexity. This study presents several measures of complexity for the card game Daihinmin to obtain some of its characteristics. Through computer experiments using programs playing Daihinmin, we collect data on the average number of possible moves and the average length of game in the case of the standard rules and in that of the rules including some local rules such as 11-Back. Then, we calculate some indicators such as the strategic complexity of the game and investigate the characteristics of these indicators. Furthermore, a questionnaire survey is conducted to find out which move a human will play from the initial hand in the specified situation. From moves made by various computer programs in the same situation, we show the difference in playing styles between humans and computers.