| 摘要 |
PROBLEM TO BE SOLVED: To increase the variations of the combinations of symbols valid in terms of the judgment of winning condition achievement, to prevent the state becoming stereotyped, to improve interest and to facilitate the judgment of the propriety of winning for a player. SOLUTION: Optional two symbols continued in the peripheral direction of three reels 14 respectively are displayed at respective upper and lower positions ('1 upper', '1 lower', '2 upper', '2 lower', '3 upper' and '3 lower') in a symbol display window 12. They are displayed on upper and lower horizontal lines 16. The upper horizontal line 16 is validated in the case of one paid medal and the two upper and lower horizontal lines 16 are validated in the case of two medals. In the case of three medals, all the combinations in the case of adopting optional one each for the entire display means from the symbols of upper and lower two each on three vertical lines 17 stopped and displayed by the respective reels 14 are validated.
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