2,474
(1,000)

## Tetris: The Grandmaster Ace

There are a maximum of 50 Tetris: The Grandmaster Ace achievements worth 2,474 (1,000)

499 tracked gamers have this game, 15 have completed it (3.01%) | 10 want to boost

# 対戦テトリス　Ｓ－51 (20)

## Achievement Guide for 対戦テトリス　Ｓ－

Solution

To get this achievement, you need to reach Grade S-, which means you need to get 8000 Ranking Points.

The Grades are split up into the following Ranking Point ranges:

----------------------
TM = 14000-15000 RP (15000 is the maximum RP you can have.)
S+ = 12000-13999 RP
S = 10000-11999 RP
S- = 8000-9999 RP
A+ = 7000-7999 RP
A = 6000-6999 RP
A- = 5000-5999 RP
B+ = 4000-4999 RP
B = 3000-3999 RP
B- = 2000-2999 RP
C+ = 1200-1999 RP
C = 600-1199 RP
C- = 0-599 RP (0 is the minimum RP you can have.)

You start with 0 RP. You increase your multiplayer Tetris Grade by winning versus games across Xbox Live. You decrease your RP by losing versus games across Xbox Live. The way Ranking Points (RP) are awarded is very simple:

0-Grade difference: Winner = +200 RP. Loser = -200 RP.
1-Grade difference: Winner = +150 RP. Loser = -150 RP.
2-Grade difference: Winner = +100 RP. Loser = -100 RP.
3-Grade difference: Winner = +50 RP. Loser = -50 RP.
4-Grade difference (or more): Winner = +10 RP. Loser = -10 RP.

Examples:

Opponent Rank= C+ (or lower)
If you win, you gain 10 ranking points. If you lose, you lose 10 ranking points.

Opponent Rank= B-
If you win, you gain 50 ranking points. If you lose, you lose 50 ranking points.

Opponent Rank= B
If you win, you gain 100 ranking points. If you lose, you lose 100 ranking points.

Opponent Rank= B+
If you win, you gain 150 ranking points. If you lose, you lose 150 ranking points.

Opponent Rank= A-
If you win, you gain 200 ranking points. If you lose, you lose 200 ranking points.

Opponent Rank= A
If you win, you gain 150 ranking points. If you lose, you lose 150 ranking points.

Opponent Rank= A+
If you win, you gain 100 ranking points. If you lose, you lose 100 ranking points.