Reviewed games / 41st European Chess Club Cup 2026, Open, round 2

Erigaisi Arjun vs Vignir Vatnar Stefansson: game review

Erigaisi Arjun won on 18 October 2026, in the Lion Defense: Lion's Jaw. Stockfish 19 reviewed every move of both players at depth 18, double-checked the sharp moments deeper, and labelled each one from Brilliant to Blunder.

The board after 33.Qxe7, with both players' accuracy
Erigaisi Arjun 274692.3
Vignir Vatnar Stefansson 253484.9
Erigaisi ArjunLabelVignir Vatnar Stefansson
1!Great0
29Best22
3Excellent3
2Good10
4Book3
3?!Inaccuracy3
Step through every moveReview your own game

Key moments

The Brilliant and Great moves, and the costliest mistakes, as the review explains them.

33.Qxe7: Great

33.Qxe7! The only good move here: every alternative is clearly worse.

  • Takes the queen on e7.
  • The next best move, 33.b4, would drop White's winning chances from 86% to 76% (+3.10).
  • 33.Qxe7 trades off the attacked queen instead of losing it to …Qxc5+ and trades queens.
  • Black was threatening …Qxc5+, winning the queen and a bishop. The queen takes something with it instead.
  • Trades queens: the queens come off while ahead, which makes the extra material easier to convert.
  • The queen on e7 can be taken by the knight on d5 or the bishop on f6.

The opening

Lion Defense: Lion's Jaw (B00)

  • Both sides followed opening theory up to 4.Be3: 7 moves in all, 4 by White and 3 by Black.
  • Theory runs out after 4.Be3: too few games between strong players reached this position to go further.

Every move

The moves from the official broadcast on Lichess (the game), each with its label. Step through them on the board for the engine lines and an explanation of every move.

  1. 1.e4d6
  2. 2.d4Nf6
  3. 3.f3e6
  4. 4.Be3Be7
  5. 5.c4O-O
  6. 6.Nc3c5
  7. 7.d5exd5
  8. 8.cxd5Nfd7
  9. 9.?!Nh3Bf6
  10. 10.Qd2b6
  11. 11.Nf2Ba6
  12. 12.Nb5Bxb5
  13. 13.Bxb5a6
  14. 14.Be2b5
  15. 15.Ng4Be7
  16. 16.a4bxa4
  17. 17.Rxa4a5
  18. 18.O-O?!Na6
  19. 19.Rxa5Nb4
  20. 20.Rxa8Qxa8
  21. 21.?!Bf4f5
  22. 22.?!Ne3g5
  23. 23.Nxf5Rxf5
  24. 24.exf5gxf4
  25. 25.Qxf4Qf8
  26. 26.Bb5?!Ne5
  27. 27.Qe4Qf7
  28. 28.Rd1Bf6
  29. 29.f4Nd7
  30. 30.Qe6Nb6
  31. 31.Qxd6N4xd5
  32. 32.Qxc5?!Qe7
  33. 33.!Qxe7Nxe7
  34. 34.g4Bxb2
  35. 35.Kg2Kg7
  36. 36.Kf3h6
  37. 37.Rd6Nbc8
  38. 38.Re6Bf6
  39. 39.Bd7Na7
  40. 40.Ra6Nac8
  41. 41.Bxc8Nxc8
  42. 42.g5

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