Exoq

Exoq is a variant opener of Hart; it can be made into the same shape after the 2nd bag. The name "Exoq" is formed by shifting the ASCII code for "Hart" forward three places. This opener was invented by Syrup on July 20, 2022 Japan time.

1st bag
There are four stacking methods. Setup rates are 99.72% on one side and 100.00% on both sides.

3rd bag(PC)
PC rate is 100.00%, TSSPC rate is 25.48%, TSDPC rate is 14.76%, 17 filter solutions.

Reference

 * [Tetris Opener Organizing Wiki]