Champion Of Champions (part two)

HERE is how the tournament bracket looks after one match.

Round of 16               Quarter-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)

8.Tal
v--------------------------
9.Petrosian

6. Botvinnik
v--------------------------
11. Fischer

13. Kasparov
v--------------------------
4. Alekhine

3. Capablanca
v--------------------------
14. Kramnik

5. Euwe
v--------------------------
12. Karpov

7. Smyslov
v--------------------------
10. Spassky

15. Anand
v--------------------------
2. Lasker

Round of 16
Match Two: Tal v Petrosian
Game One
Mikhail Tal - Tigran V Petrosian
French Tarrasch
1.e4 e6
This narrowly beats 1...c5 by 164 appearances to 160 in ChessBase's 2020 Mega database as Petrosian's favourite reply to 1.e4.
2.d4 d5 3.Nd2!?
Another narrow decision - Tal preferred this over 3.Nc3 by 49 games to 46.
3...c5 4.Ngf3 Nf6 5.exd5 exd5
Petrosian has four games with the text and four with 5...Nxd5. He scored 50% with both moves, but the former wins on tiebreak as none of the 5...Nxd5 games were when he had a Fide rating.
6.Bb5+ Bd7 7.Bxd7+ Nbxd7 8.0-0 Be7 9.dxc5 Nxc5 10.Nb3 Nce4

Finally we have reached a position that does not occur in Tal's games

Stockfish11 and Komodo11.01 agree this position is better for White, their evaluations averaging as a score for Tal of +44.5

Game Two
Tigran V Petrosian - Mikhail Tal
QGD Semi-Tarrasch
1.d4 Nf6 2.c4 e6 3.Nf3
Petrosian narrowly preferred the text to 3.Nc3 by 118 games to 106.
3...d5 4.Nc3 c5!?
An aggressive response, much in Tal's style.
5.e3!?
The main move is 5.cxd5, which Petrosian played less often but with which he scored much better.
5...Nc6 6.cxd5 Nxd5 7.Bc4 cxd4 8.exd4 Be7 9.0-0 0-0 10.Re1 Nxc3

This position does not appear in Petrosian's games

The engines prefer White, but their averaged evaluations give Petrosian a score of +36, which is not enough to overcome Tal's +44.5 from game one.
Here is the updated bracket after two matches.

Round of 16               Quarter-Finals
1. Steinitz
v----------------------------Carlsen
16. Carlsen (+102.5)

8.Tal (+8.5)
v----------------------------Tal
9.Petrosian

6. Botvinnik
v--------------------------
11. Fischer

13. Kasparov
v--------------------------
4. Alekhine

3. Capablanca
v--------------------------
14. Kramnik

5. Euwe
v--------------------------
12. Karpov

7. Smyslov
v--------------------------
10. Spassky

15. Anand
v--------------------------
2. Lasker

Carlsen against Tal should make for an interesting first quarter-final.