These tips are meant for those who have already mastered all of the intermediate and beginner concepts, but you could read them if you are just starting out as well. Just try not to get too overwhelmed at first
So, you feel that you're almost there, the Grandmaster grade within your sights. Here is the information you need to know that will allow you to achieve this very exclusive and prestigous title.
Unlike the other grades in the game, there are some special conditions that you must accomplish in order to earn the GM grade.
If you accomplished all of the above conditions, your S9 grade will immediately change to GM upon completing the game. Additionally, you will get to continue to play the game while the credits roll. This credits roll playing is just for fun, so don't worry too much about topping out during it. Finally, after the credits complete you will be able to enter your intitials and save your score. Savour the moment, you've finally done it!
A synchro (short for synchronous action) is a difficult technique to execute. It is a "frame-perfect" maneuver and requires you to press a rotation button and a left or right input on the same frame (1/60th of a second). The game will move your piece and rotate it on the same frame, allowing for otherwise impossible movements to be accomplished. If DAS is charged, however, then a synchro will automatically occur when a rotation button is pressed and the frame perfect input will not be required.
Take the following case as an example of the usefulness of synchros. Normally, in 20G, the I piece could not be placed in the 10th column for a Tetris: rotating the I piece on the very edge could only get it to fall in the hole in column 8. However, the synchro maneouver allows the line piece to rotate and move to the right on the same frame, meaning that it wall fall onto column 9 and then can be moved over once more for a Tetris:
Take care when attempting synchros without DAS charged. If you do not input the maneuver correctly, you could land yourself with a very precarious stack.
Each piece in TGM has a unique colour and sound associated with it. Knowing what piece is coming up next is so important when playing at high speed so that you can prepare your IRS and know where to place it ahead of time. However, moving your vision away from the stack in order to see what the next piece is takes away your focus from the stack and from there, it easy to become overwhelmed by the pure speed of the game.
This is where the colours of the pieces come in handy. If you memorize the colour of each piece, you will not have to look away from the stack to the next piece section in order to know what is coming next. You will be able to see the colour of the piece in your peripheral vision and this is all of the information you require in order to know what type of piece it is.
Additionally, you may have noticed strange beeping noises each time a piece spawns into the well. This noise actually serves a purpose. The noise made indicates what piece is coming up next. Each of the seven pieces has a unique noise associated with it. Start actively memorizing these noises and you will no longer ever have to look away from your stack. You will always know what piece is coming up next and since, the average human reaction time to audio stimulus is faster than the average reaction time to visual stimulus, you will know what piece is coming up faster than your eyes could ever tell you.
This sound detecting is a very difficult technique to master and is not at all required to achieve a GM grade. However, mastering this technique will allow you to become not only a GM, but one of the best Tetris players in the world. Theoretically, this technique would also allow you to play blindfolded...
In the beginning sections of the game before you reach 20G, pieces take a definite amount of time before they reach your stack. This time for the pieces to fall will definitely increase your overall time to complete the game.
The best way to mitigate this time loss is by stacking very high in the early levels of the game, especially when the gravity resets at level 200. If you stack high, pieces will need to travel less distance in order to lock, it is as simple as that. You would be surprised at how much overall time you will lose by simply dropping the pieces very far distances.
This is of course a dangerous strategy because building high makes it much easier to top out. It is up to you as a player to effectively balance risk and reward and to challenge yourself to play as high as you possibly can.
If you have enough experience with the game, you will not even have to "think" about where to place a piece. Your instincts will take over and direct you automatically to where the best place for that piece is.
I have found that it is best not to fight these instincts or double guess yourself. You will get caught up in your own head and will find that it is easy to let your stack spiral out of control
Trust yourself and your instincts and keep stacking!
If your Tetris skills have advanced to a level where you can react to what the next piece is going to be while the current piece is still active, you can change where you might have initially planned to place a piece in order to better accomadate the next piece.
For example, if you decided to place a Z piece in your column 10 Tetris well in order to burn some lines, but you then noticed that your next piece is an I piece, you could make an adjustment and put your L piece elsewhere in order to accomadate this I piece and score a Tetris.