chessflex
The Hague & Moscow · Mar 1948
Botvinnik won with 14 of 20. A match-tournament: 5 players, 50 games.
The move that cost the match's loser the most, in a game they lost.
Euwe v Keres · 0–1
34. Qd4 by Euwe: chances 40% → 0%
The coach: Qb3 instead (the arrow) — with it, Euwe was slightly worse.
Replay it: Study › Follow a live game › World Championship 1948: The Hague–Moscow tournament › Round 21
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.
56 moves · e4 e5 Nf3 Nc6 · accuracy Euwe 89.5, Keres 92.4
Costliest move: 39. h3 (Euwe, 30% → 0%)
41 moves · e4 e5 Nf3 Nc6 · accuracy Smyslov 90.4, Reshevsky 90.5
Costliest move: 14. Nb3 (Smyslov, 58% → 46%)
27 moves · c4 Nf6 Nf3 c6 · accuracy Keres 93.7, Smyslov 87.4
Costliest move: 23... Bh6 (Smyslov, 39% → 17%)
32 moves · d4 d5 c4 e6 · accuracy Botvinnik 94.0, Euwe 89.8
Costliest move: 13. Ne4 (Botvinnik, 64% → 50%)
41 moves · Nf3 Nf6 c4 b6 · accuracy Reshevsky 93.0, Keres 89.1
Costliest move: 39... Bd4 (Keres, 22% → 2%)
44 moves · d4 Nf6 c4 g6 · accuracy Smyslov 93.9, Botvinnik 94.9
No move cost more than 12%.
42 moves · e4 e5 Nf3 Nc6 · accuracy Euwe 87.7, Smyslov 90.9
Costliest move: 13. dxc5 (Euwe, 62% → 43%)
32 moves · d4 Nf6 c4 e6 · accuracy Botvinnik 90.4, Reshevsky 89.1
Costliest move: 29... Qxf5 (Reshevsky, 65% → 28%)
58 moves · c4 e6 g3 d5 · accuracy Keres 89.8, Botvinnik 91.7
Costliest move: 52... Qe3+ (Botvinnik, 82% → 65%)
41 moves · d4 d5 c4 e6 · accuracy Reshevsky 92.9, Euwe 91.8
Costliest move: 12... c5 (Euwe, 44% → 27%)
34 moves · e4 e5 Nf3 Nc6 · accuracy Keres 91.8, Euwe 91.5
No move cost more than 12%.
45 moves · c4 Nf6 Nc3 d5 · accuracy Reshevsky 90.7, Smyslov 90.7
Costliest move: 39. Kd4 (Reshevsky, 72% → 51%)
40 moves · e4 e6 d4 d5 · accuracy Euwe 90.9, Botvinnik 90.7
No move cost more than 12%.
57 moves · d4 Nf6 c4 e6 · accuracy Smyslov 92.8, Keres 95.3
Costliest move: 47. Qc3 (Smyslov, 39% → 19%)
79 moves · d4 Nf6 c4 g6 · accuracy Botvinnik 91.4, Smyslov 91.6
Costliest move: 74. Rxa5 (Botvinnik, 68% → 50%)
24 moves · e4 e5 Nf3 Nc6 · accuracy Keres 93.4, Reshevsky 95.6
No move cost more than 12%.
33 moves · d4 e6 c4 f5 · accuracy Reshevsky 85.3, Botvinnik 84.5
Costliest move: 28. Kf2 (Reshevsky, 68% → 32%)
70 moves · e4 e5 Nf3 Nc6 · accuracy Smyslov 90.6, Euwe 88.6
Costliest move: 62... Nd6 (Euwe, 24% → 5%)
23 moves · d4 Nf6 c4 e6 · accuracy Botvinnik 92.6, Keres 88.9
No move cost more than 12%.
57 moves · e4 e5 Nf3 Nc6 · accuracy Euwe 90.6, Reshevsky 90.6
Costliest move: 35... Rb4 (Reshevsky, 44% → 23%)
52 moves · e4 e5 Nf3 Nc6 · accuracy Smyslov 93.5, Reshevsky 91.0
No move cost more than 12%.
25 moves · e4 e5 Nf3 Nc6 · accuracy Euwe 91.0, Keres 97.0
Costliest move: 23. Qd2 (Euwe, 19% → 2%)
42 moves · d4 Nf6 c4 g6 · accuracy Keres 94.8, Smyslov 95.0
No move cost more than 12%.
36 moves · d4 d5 Nf3 Nf6 · accuracy Botvinnik 89.6, Euwe 87.3
Costliest move: 34... Rc7 (Euwe, 18% → 2%)
41 moves · e4 c5 Nf3 Nc6 · accuracy Smyslov 86.5, Botvinnik 90.4
Costliest move: 10... gxf6 (Botvinnik, 58% → 42%)
63 moves · d4 d5 c4 c6 · accuracy Reshevsky 89.9, Keres 92.2
Costliest move: 56. e4 (Reshevsky, 50% → 24%)
42 moves · d4 Nf6 c4 g6 · accuracy Euwe 92.7, Smyslov 89.5
Costliest move: 27. Qe3 (Euwe, 94% → 71%)
42 moves · d4 Nf6 c4 e6 · accuracy Botvinnik 87.5, Reshevsky 91.9
Costliest move: 36. Nd5+ (Botvinnik, 21% → 4%)
26 moves · c4 e6 Nf3 d5 · accuracy Reshevsky 93.5, Euwe 94.0
No move cost more than 12%.
72 moves · d4 e6 e4 d5 · accuracy Keres 89.9, Botvinnik 92.6
Costliest move: 28... Be6 (Botvinnik, 62% → 50%)
41 moves · d4 d5 c4 c6 · accuracy Reshevsky 93.8, Smyslov 92.9
Costliest move: 21... Qb6 (Smyslov, 55% → 34%)
34 moves · e4 e5 Nf3 Nc6 · accuracy Keres 92.7, Euwe 87.9
Costliest move: 33... Qe7 (Euwe, 32% → 4%)
29 moves · e4 e6 d4 d5 · accuracy Euwe 94.9, Botvinnik 95.2
No move cost more than 12%.
41 moves · d4 d5 c4 e6 · accuracy Smyslov 92.9, Keres 90.1
No move cost more than 12%.
41 moves · e4 e5 Nf3 Nc6 · accuracy Keres 91.7, Reshevsky 93.3
No move cost more than 12%.
80 moves · d4 Nf6 c4 g6 · accuracy Botvinnik 90.4, Smyslov 89.7
Costliest move: 73... Kg7 (Smyslov, 43% → 6%)
26 moves · e4 e5 Nf3 Nc6 · accuracy Smyslov 94.4, Euwe 90.1
Costliest move: 14... Ne7 (Euwe, 48% → 30%)
47 moves · d4 e6 e4 d5 · accuracy Reshevsky 88.7, Botvinnik 92.3
Costliest move: 39. Nf4 (Reshevsky, 37% → 16%)
42 moves · d4 Nf6 c4 e6 · accuracy Euwe 91.2, Reshevsky 94.1
Costliest move: 11. dxe5 (Euwe, 66% → 52%)
60 moves · d4 d5 Nf3 Bf5 · accuracy Botvinnik 93.2, Keres 90.4
Costliest move: 47... Nc5 (Keres, 42% → 22%)
73 moves · e4 e5 Nf3 Nc6 · accuracy Smyslov 93.9, Reshevsky 94.6
No move cost more than 12%.
35 moves · d4 Nf6 c4 e6 · accuracy Euwe 87.0, Keres 90.5
Costliest move: 34. Qd4 (Euwe, 40% → 0%)
49 moves · c4 Nf6 Nc3 d5 · accuracy Keres 93.1, Smyslov 94.7
No move cost more than 12%.
14 moves · d4 d5 Nf3 Nf6 · accuracy Botvinnik 91.9, Euwe 95.7
No move cost more than 12%.
17 moves · d4 d5 c4 dxc4 · accuracy Smyslov 91.7, Botvinnik 92.5
No move cost more than 12%.
26 moves · d4 Nf6 c4 e6 · accuracy Reshevsky 92.0, Keres 92.5
No move cost more than 12%.
38 moves · d4 Nf6 c4 g6 · accuracy Euwe 89.3, Smyslov 93.0
Costliest move: 26. Bxc5 (Euwe, 34% → 22%)
41 moves · e4 e5 Nf3 Nc6 · accuracy Botvinnik 94.8, Reshevsky 91.9
Costliest move: 34... Ra8 (Reshevsky, 27% → 1%)
36 moves · d4 d5 c4 e6 · accuracy Reshevsky 91.7, Euwe 88.0
Costliest move: 26. Nxe4 (Reshevsky, 81% → 57%)
39 moves · e4 e6 d4 d5 · accuracy Keres 90.1, Botvinnik 87.1
Costliest move: 27... Rxf4 (Botvinnik, 55% → 28%)
Every game of this match is in ChessFlex. Replay it move by move with the coach's three best moves, guess each of Botvinnik'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 1948: The Hague–Moscow tournament › Round 1
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