Dot Cannon

Dot Cannon is a C-Spin Opener similar to Gamushiro Stacking that gives a C-Spin -> Perfect Clear. It's notable for being much more streamlined than Gamushiro Stacking. The main form results in an 85.24% chance to PC in the third bag with only 5 minimals.

First Bag

The first bag is always built like this, or the mirrored version of it. With the mirrored version combined with the normal version, the build rate is 100%, but with only the standard form the build rate is 91.67%, or 4620/5040.

Unbuildable bags for the standard orientation's build have SLJO/LSJO queue order (8.33% of possible orders), while complementarily, the mirrored orientation's unbuildable bags have ZJLO/JZLO queue order - these being nonintersecting, you'll always be able to build the mirror when the standard orientation build is unbuildable, hence the 100% combined setup rate.

Second Bag

Assuming you're playing a game that has 180 spins and you're able to softdrop, the second bag will always be able to be built this way.

Third Bag

You now have an 85.24% PC chance with 5 minimals.

(47.62%, Save S)

(33.33%, Save T)

(30.79%, Save Z)

(26.19%, Save Z)

(13.33%, Save T)

From this minimal set, the three save S/Z solutions have 65.16% PC chance and 46.83% T-Spin chance.

See Also

Gamushiro Stacking - A similar opener that gives a C-Spin into a PC

Mountainous Stacking - Another C-Spin PC Opener

C-Spin - The original C-Spin opener.

External Links

An excellent resource for this opener made by myaobyao!#3892 on Discord.

The original page for this opener.