Polymer T-spins use a roof to kick in a T piece into the cavity. They are difficult to spot, but they may open up some options. More often, they are unclean as they leave a terrible overhang that must sometimes be skimmed off. Here is a list of tips:
- The key to using Polymers lies in only using them when there are no better or cleaner alternatives.
- Clean up the residue overhang properly through soft drops, skims, freestyle T-spins, or Tetrises.
- Fin T-spin double is the only practical Polymer. The rest are only used for fun, and I don’t encourage them.
- Extreme Polymers like Trehalose are outright worthless mid-game.
- Neo T-spin doubles are not too optimal, as, in most games, they count only as a T-spin double mini, sending only one line of garbage if back-to-backs are not on. The soft drop finesse and time penalties make them not so worthwhile.
I don’t have too many clips on Polymers. However, I will add more to this page in the future.
I present my Twitch Tetris clips, featuring my actual gameplay, to demonstrate the above. Below every video is a set of commentaries unique to that clip.
Enjoy! I hope you will learn from my demonstrations.
Please click on the Twitch links in the demonstrations below.
STMB Cave on Fin T-spin:
https://www.twitch.tv/videos/2532508478
- Note how the Fin T-spin double can be stacked and freestyled above it.
Standard Fin:
https://www.twitch.tv/videos/2532420251
- The J or L overhang is the most common way to make Fin T-spins.
Another Fin:
https://www.twitch.tv/videos/2454876030
- Same.
Another Fin 2:
https://www.twitch.tv/videos/2454805157
- S and Z are also good overhang alternatives.
Concatenated Fin:
https://www.twitch.tv/videos/2479461371
- You can stack floating T-spins over Fins.
Exotic Polymer:
https://www.twitch.tv/videos/2287343298
- This is a rare spliced Polymer setup.
Unusual Overhang Fin:
https://www.twitch.tv/videos/2129027643
- The Fin overhang can be freestyled with combined pieces.
Iso Polymer Splicing:
https://www.twitch.tv/videos/868256834
- Another rare spliced Iso T-spin.
Fin T-spin Splicing:
https://www.twitch.tv/videos/868262319
- Another rare spliced method.
Spliced Polymer:
https://www.twitch.tv/videos/583163040
- Another.
- From an old 2020 clip.
Over-the-top Polymer:
https://www.twitch.tv/videos/581513851
- Don’t try this.
- Impractical.
Trehalose:
https://www.twitch.tv/videos/544644803
- Totally impractical spliced Polymer.
How to Tetris 