How to Tetris

Mid-game Perfect Clears

Mid-game perfect clears happen occasionally. They seem difficult to spot, but one can prioritize easy-to-spot generic patterns and solve them. Here is a list of tips:

  1. Freestyle using parity management considerations.
  2. Try to identify, from the residues, which PC bag the mid-game PC is, then use the appropriate first to seventh PC patterns from Book 3 and chain them.
  3. Some patterns can be easily solved by following the L + J + vertical T being even rule.

Recent video clips of my mid-game PCs are rare (2024 onwards). Most are from 2020, when I was much slower.

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.

Mid-game PC with No Hesitation:

https://www.twitch.tv/videos/2545926530

  • This can only be freestyled.

4 Back-to-back PC at the Start:

https://www.twitch.tv/videos/2407265384

  • This uses the easily memorizable patterns in Book 3.

Mid-game Double PC with No Hesitation:

https://www.twitch.tv/videos/2344871231

  • This one uses the PCO pattern, followed by the second PC patterns, which are easy to apply instantly if one has memorized them.

Mid-game Double PC:

https://www.twitch.tv/videos/716104967

  • Same as the last video’s points.

Triple Mid-game PC:

https://www.twitch.tv/videos/692301173

  • Uses the traditional first, second, and third PC bag patterns in Book 3.

Triple Mid-game PC again:

https://www.twitch.tv/videos/691371063

  • The first PC is freestyled.
  • The second and third use the first and second PC bag patterns in Book 3.

Triple PC:

https://www.twitch.tv/videos/623861892

  • Uses the 2×10 PC pattern later.
  • The rest is freestyled.

T-spin Triple PC:

https://www.twitch.tv/videos/614681732

  • Uses a freestyle T-spin protected PC.
  • The rest use the third PC patterns from Book 3.

Freestyle PC:

https://www.twitch.tv/videos/595373119

  • Freestyle PC.

Freestyle Insane PC Sequence:

https://www.twitch.tv/videos/582315819

  • Uses a stacked third PC pattern from Book 3 as the first.

8 Back-to-back PCs:

https://www.twitch.tv/videos/582970164

  • Uses the first to seventh PC patterns in Book 3.

More clips may be added in the future. However, this list is enough to showcase the core points. Any further ones may be redundant.