Mini Cactpot

Click on a square to enter a digit.

À propos

Mini Cactpot is a scratchcard lottery where each of the numbers through are hidden in a grid. One cell is initially revealed, and after selecting 3 more to uncover one at a time, you may select any row, column, or diagonal. The sum of your selected line determines how much MGP you win.

Sum	MGP	Sum	MGP
6	10 000	16	72
7	36	17	180
8	720	18	119
9	360	19	36
10	80	20	306
11	252	21	1 080
12	108	22	144
13	72	23	1 800
14	54	24	3 600
15	180

This calculator works by computing the expected value of selecting any line or cell. A strategy that doesn’t involve heavy computation is to first reveal a “Y” shape on the board.

Create any of these shapes. At least one of these is always possible.

Next, select a line as follows:

If a line can be the line, select it.
If a line can be the line, select it.
Select whatever line can have the biggest sum (not payout).

This strategy gives an expected value of 1 259, whereas perfect play gives 1 484. Note that in steps 1 and 2, if a or line exists, you will always select it without ambiguity. In step 3, you may have to guess which lines may have a large sum.

A very similar strategy is to make a Tetris “T” shape, but this performs slightly worse on average.