PURPOSE: To increase the winning rate of a purchased pool ticket by combining a specific number of groups at a start line and the six items of calender notes and generating a chance of winning.

CONSTITUTION: When the day of a race is 'TAIAN' (lucky day), 1 is assigned to 'TAIAN' (lucky day), 2 to 'SHAKKO' (lucky only in the forenoon) right below 'TAIAN', 3 to 'SENSHO' (lucky in the forenoon, unlucky in the afternoon) below 'TAIAN', 4 to 'TOMOBIKI' (unlucky in the daytime) left below, 5 to 'SENBU' (lucky in the forenoon, unlucky in the afternoon) left above, 6 to 'BUTUMETU' (unlucky in all day) left above, 7 to 'TAIAN' right above, and 8 to 'SHAKKO' right below. Then a rotation is made similarly starting at 1 to obtain 175 at 'TAIAN' and 286 at 'SHAKKO'. The day is 'TAIAN', so the likely winner is 1, 7, and 5, so 1-5, 1-7, and 5-7 and selected; when a dark horse is 3, 1-3, 3-5, and 3-7 are selected.