Magnus Carlsen vs. Viswanathan Anand, 2014
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The final position after 38. Re7+
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| White | Magnus Carlsen |
|---|---|
| Black | Viswanathan Anand |
| Result | 1–0 |
| Date | 15 November 2014 |
| Event | World Championship |
| Round | 6 |
| Site | Sochi RUS |
| Opening | B41 |
| Moves | 38 |
| Analysis | Stockfish 19, depth 22 |
| Critical moments | 1, 2, 3 |
Magnus Carlsen vs. Viswanathan Anand is a chess game played on 15 November 2014 at Sochi RUS, in round 6 of “World Championship”. Magnus Carlsen, with the white pieces, won in 38 moves. The opening is classified as ECO B41. The engine found three critical moments, where a single move cost at least 20 points of winning chances or changed the expected result; each is a “what would you play?” question below.
The game
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Qd3 Nc6 8. Nxc6 dxc6 9. Qxd8+ Kxd8 10. e5 Nd7 11. Bf4 Bxc3+ 12. bxc3 Kc7 13. h4 b6 14. h5 h6 15. O-O-O Bb7 16. Rd3 c5 17. Rg3 Rag8 18. Bd3 Nf8 19. Be3 g6 20. hxg6 Nxg6 21. Rh5 Bc6 22. Bc2 Kb7 23. Rg4 a5 24. Bd1 Rd8 25. Bc2 Rdg8
Show the answer
Best was 26. Rg3, the engine's line being 26. Rg3 a4 27. Kd2 a3 28. Ke2 Ka6 29. f3 Ka5 =. With it, White's winning chances stay at 51%.
In the game White played 26. Kd2?, a mistake that turned a level game into a losing one. White's winning chances fell from 51% to 25%. The refutation: 26... Nxe5 27. Rxg8 Nxc4+ 28. Kd3 Nb2+ 29. Ke2 Rxg8 30. Rxh6 −+.
26. Kd2? (A mistake that turned a level game into a losing one: White's winning chances fall from 51% to 25%.)
Show the answer
Best was 26... Nxe5, the engine's line being 26... Nxe5 27. Rxg8 Nxc4+ 28. Kd3 Nb2+ 29. Ke2 Rxg8 30. Rxh6 −+. With it, Black's winning chances stay at 75%.
In the game Black played 26... a4?, a mistake that turned a winning game into a level one. Black's winning chances fell from 75% to 45%. The refutation: 27. Ke2 Ne7 28. Rxg8 Rxg8 29. g3 Rg4 30. Bd3 Be4 ⩲.
26... a4? (A mistake that turned a winning game into a level one: Black's winning chances fall from 75% to 45%.) 27. Ke2 a3 28. f3 Rd8 29. Ke1 Rd7 30. Bc1 Ra8 31. Ke2 Ba4 32. Be4+
Show the answer
Best was 32... Ka7, the engine's line being 32... Ka7 33. Bxa8 Kxa8 34. Bxa3 Rd1 35. Rxh6 Ra1 36. Rg5 ⩲. With it, Black's winning chances stay at 42%.
In the game Black played 32... Bc6?!, an inaccuracy that turned a level game into a losing one. Black's winning chances fell from 42% to 28%. The refutation: 33. Bxg6 fxg6 34. Rxg6 Re8 35. Rhxh6 Ba4 36. Bxa3 Bc2 ±.
32... Bc6?! (An inaccuracy that turned a level game into a losing one: Black's winning chances fall from 42% to 28%.) 33. Bxg6 fxg6 34. Rxg6 Ba4 35. Rxe6 Rd1 36. Bxa3 Ra1 37. Ke3 Bc2 38. Re7+ 1–0
Conclusion
The game ended 1–0 after 38. Re7+. Magnus Carlsen was clearly ahead: the engine gives 92% winning chances. In the engine's grading, White made one mistake, and Black made one inaccuracy and one mistake.
PGN
[Event "World Championship"] [Site "Sochi RUS"] [Date "2014.11.15"] [Round "6"] [White "Magnus Carlsen"] [Black "Viswanathan Anand"] [Result "1-0"] [ECO "B41"] [PostmortemId "2e47c73beb"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Qd3 Nc6 8. Nxc6 dxc6 9. Qxd8+ Kxd8 10. e5 Nd7 11. Bf4 Bxc3+ 12. bxc3 Kc7 13. h4 b6 14. h5 h6 15. O-O-O Bb7 16. Rd3 c5 17. Rg3 Rag8 18. Bd3 Nf8 19. Be3 g6 20. hxg6 Nxg6 21. Rh5 Bc6 22. Bc2 Kb7 23. Rg4 a5 24. Bd1 Rd8 25. Bc2 Rdg8 26. Kd2 a4 27. Ke2 a3 28. f3 Rd8 29. Ke1 Rd7 30. Bc1 Ra8 31. Ke2 Ba4 32. Be4+ Bc6 33. Bxg6 fxg6 34. Rxg6 Ba4 35. Rxe6 Rd1 36. Bxa3 Ra1 37. Ke3 Bc2 38. Re7+ 1-0