chessflex
Merano · Oct 1981
Karpov 11–7 Korchnoi
Karpov won 11–7.
The score gap, game by game: up is Karpov.
The move that cost the match's loser the most, in a game they lost.
Korchnoi v Karpov · 1–0
32... Nxd3 by Karpov: chances 77% → 31%
The coach: Rxf2+ instead (the arrow) — with it, Karpov was clearly better.
Replay it: Study › Follow a live game › World Championship 1981: Karpov v Korchnoi › Game 13
Each line is White's chances move by move, as the coach saw them; above the middle, White is better. The mark is the costliest move.
43 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 92.6, Karpov 95.0
No move cost more than 12%.
57 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 93.2, Korchnoi 90.5
Costliest move: 53... Qg6 (Korchnoi, 24% → 12%)
41 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 93.4, Karpov 94.9
Costliest move: 38... Qb7 (Karpov, 62% → 50%)
53 moves · e4 e5 Nf3 Nf6 · accuracy Karpov 94.3, Korchnoi 91.8
Costliest move: 48... Qb7+ (Korchnoi, 24% → 0%)
45 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 95.4, Karpov 94.6
No move cost more than 12%.
41 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 90.2, Korchnoi 93.2
Costliest move: 40. Nf1 (Karpov, 50% → 33%)
31 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 90.8, Karpov 92.8
No move cost more than 12%.
84 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 93.3, Korchnoi 92.8
Costliest move: 69. Ne8 (Karpov, 82% → 67%)
43 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 92.5, Karpov 94.8
Costliest move: 39. Rxa5 (Korchnoi, 20% → 2%)
32 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 94.7, Korchnoi 94.8
No move cost more than 12%.
35 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 93.0, Karpov 93.8
No move cost more than 12%.
47 moves · c4 Nf6 Nc3 d5 · accuracy Karpov 94.0, Korchnoi 94.0
No move cost more than 12%.
41 moves · c4 e6 Nc3 d5 · accuracy Korchnoi 90.8, Karpov 88.0
Costliest move: 32... Nxd3 (Karpov, 77% → 31%)
46 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 94.2, Korchnoi 90.9
Costliest move: 17... Bxf6 (Korchnoi, 45% → 20%)
40 moves · c4 Nf6 Nc3 e5 · accuracy Korchnoi 94.6, Karpov 94.8
No move cost more than 12%.
42 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 90.3, Korchnoi 89.9
No move cost more than 12%.
23 moves · Nf3 Nf6 c4 e6 · accuracy Korchnoi 94.4, Karpov 94.6
No move cost more than 12%.
41 moves · e4 e5 Nf3 Nc6 · accuracy Karpov 94.4, Korchnoi 90.5
Costliest move: 18... Rfb8 (Korchnoi, 42% → 29%)
Every game of this match is in ChessFlex. Replay it move by move with the coach's three best moves, guess each of Karpov's moves before you see them, ask the coach why, or take the seat at any moment and play it out against the bots.
In the app: Study › Follow a live game › World Championship 1981: Karpov v Korchnoi › Game 1
Part of Study in ChessFlex: one purchase unlocks the coach, Follow a live game and all 53 title matches (on iPhone, try Study free first). Playing the bots is free, with no account and no ads.