From Hard Drop Tetris Wiki
These openers are a series.
Hart
Hart is an opener invented on October 4, 2021, with the world's first performance that the first bag can always be loaded without reversing left to right, the second bag can always be TSD, and the third bag can always be PC. This opener was invented by Sioyaki.
The name "Hart" comes from the German word Hart, meaning "difficult," and the shape at the end of the second bag, which looks like a "heart".
1st bag
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The first bag can always be loaded. No left-right reversal is required. There are 6 ways to stack.
2nd bag
S>L |
L>S |
Single |
TSD |
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You can always do a TSD after the Single; S-piece, J-piece, and L-piece are interchangeable in placement.
3rd bag(PC)
26.1% |
26.0% |
24.4% |
22.7% |
22.7% |
22.1% |
16.7% |
16.7% |
16.1% |
13.7% |
13.6% |
13.3% |
13.2% |
12.7% |
12.7% |
6.3% |
6.3% |
PC rate is 100.00%, TSSPC rate is ??.??%, TSDPC rate is ??.??%, 17 filter solutions.