Anna Muzychuk climbed to sole first place in the Norway Chess Women tournament by defeating Humpy Koneru in the only classical victory of the second round. With 4½ points, Muzychuk now leads the standings ahead of both Humpy and Lei Tingjie, who share second place on 3 points.
Lei scored her second consecutive Armageddon win, this time against Vaishali Rameshbabu. In the remaining matchup, Ju Wenjun got the better of Sara Khadem in the tiebreaker after drawing with the black pieces in the classical portion.
Standings after round 2
| Rk | Name | FED | Rtg | Pts |
| 1 | Anna Muzychuk | UKR | 2526 | 4½ |
| 2 | Lei Tingjie | CHN | 2552 | 3 |
| 3 | Humpy Koneru | IND | 2543 | 3 |
| 4 | Ju Wenjun | CHN | 2580 | 2½ |
| 5 | Sara Khadem | SPA | 2449 | 2 |
| 6 | Vaishali R | IND | 2475 | 1 |

Lei Tingjie has twice prevailed in Armageddon | Photo: Michal Walusza
For a second day running, Muzychuk had the white pieces, and once again showed strong preparation in the opening. Against Humpy, the Ukrainan GM gradually built up pressure, entering a major-piece endgame (queen and two rooks per side) with the more active pieces and the safer king. Despite the material balance, Muzychuk held the clear advantage and managed to win a pawn amidst tactical complications.
Both players were in time trouble by move 41, when Muzychuk missed a clear tactical shot. Instead of 41.Kh1, which stepped aside from a potential discovered check but lacked punch, the immediate 41.Ra8 was winning.
The threat of mate on h8 forces concessions, and defensive tries like 41...Rce5 are met by 42.f4 Qc3 43.Qxc3 bxc3 44.fxe5, giving White a decisive advantage.
Even after missing that, Muzychuk remained a pawn up, and a further miscalculation by Humpy on move 56 sealed her fate: 56...Qxe4 turned out to be a losing queen trade, when 56...Qc3 would have kept drawing chances.
In the ensuing pawn endgame, Muzychuk demonstrated excellent technique. A particularly elegant moment came on move 61, when 61.g3 all but forced 61...Kxe5 62.Ke3, securing the opposition and the win.
Humpy resigned after Muzychuk's 72nd move.

Humpy Koneru was the only player to score a classical win in the first round of the event | Photo: Michal Walusza
The remaining two encounters were decided in Armageddon. Lei Tingjie played the Petroff Defence twice on Tuesday, holding Vaishali Rameshbabu to a draw in classical and Armageddon formats, thus gaining 1½ points.
Ju Wenjun, on her part, faced Sara Khadem with black. After drawing in the classical section, Ju won their sudden-death game in convincing fashion. The final sequence saw 43...Rxf2+ prompting resignation.
44.Kxf2 allows 44...Ne4+, winning the queen on d8.

Sara Khadem admits defeat after seeing the fine tactical shot played by Ju Wenjun | Photo: Michal Waluszha
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