ChessPivot
Pirc Defense

Li, RuifengPetrosian, TL.

2548 2017 · Draw

Pirc Defense, 2017: Li, Ruifeng (2548) against Petrosian, TL. (2615), a game played at a high level throughout — 84% accuracy for White, 90% for Black. After 21.f5 White pries the position open and goes hunting with 27.Rxf7. The turning point is 29.Qg4: a missed opportunity that shifts the evaluation from 0.0 to +2.3 for White. What follows is a long run of checks, from 31.Rxh7+ onward, with the black king walked from h7 all the way to e4 — but the position repeats and the game ends drawn. The lesson: in these attacking races, move order decides everything; one choice converts, or lets it slip.

Li, Ruifeng(2548)
-0.3
1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
Petrosian, TL.(2615)
Analysis mode
1/5
Starting position
?!??!???
Accuracy
Petrosian, TL.92%
Li, Ruifeng86%
1.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.21.22.23.24.25.26.27.28.29.30.31.32.33.34.35.36.37.38.39.40.41.42.43.44.45.46.47.48.49.