Alexander Grischuk still alone on the top of Baku Grand Prix

Neither of the players on 2nd place tie scored a win, Cheparinov with 4th consecutive defeat

Round 4 results:

Kamsky Gata 2726 ½ - ½ Grischuk Alexander 2716
Adams Michael 2729 1 - 0 Navara David 2672
Bacrot Etienne 2705 ½ - ½ Karjakin Sergey 2732
Yue Wang 2689 1 - 0 Cheparinov Ivan 2695
Svidler Peter 2746 ½ - ½ Radjabov Teimour 2751
Inarkiev Ernesto 2684 ½ - ½ Gashimov Vugar 2679
Mamedyarov Shakhriyar 2752 1 - 0 Carlsen Magnus 2765

Tomorrow LIVE on Chessdom: Magnus Carlsen vs Gata Kamsky. See you there!

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Mamedyarov stood with his words that he will be more careful in the following rounds and started off with relatively quiet Queen's Indian. Carlsen defended with precision and held equal position until a small inaccuracy allowed white to launch kingside assault. Still no permanent damage was done, but an attempt of counter-activity 30...a5 hit him back on the head after Mamedyarov found deflecting sacrifice. Everything was over in the next few moves. Mamedyarov revealed that fan letter from Ireland raised his spirit before the round. Replay the game with commentary.

Navara was well prepared to run into Adams' favorite Tarasch variation of French defence. Already on 8th move he deviated from Adams-Berg, Crete 2007 and on 9th played a novelty. Our commentator IM David Kanovsky was delighted to see an open fight from the very beginning, and particularly after his friend Navara took over the initiative with black. Adams surprised us all when deciding for a Queens exchange being two pawns down, but his pair of Rooks and annoying Knight "forced" black to make a mistake 33...Kg8 and English Grandmaster nets second win in this tournament.

Unlike Mamedyarov, Bulgarian star Cheparinov is not even considering safe option. After three consecutive defeats, he still chose sharp Benoni defence against Wang Yue. Instead of settling for equal position, black initiated complications with 21...Bd4. Everything was still under control, but new inaccuracies granted the advantage to Chinese. He went on to win the game and Cheparinov was left with no points after four rounds.

Grischuk once again used moves repetition to bypass Sofia rules, this time with black pieces against Kamsky. The strategy must be working great as Grischuk remains sole leader after the 4th round. Svidler certainly had to count with Janish Gambit in Ruy Lopez as Radjabov's weapon of choice against 1. e4. Russian still used more time on the clock but game ended in a fair draw. Radjabov commented that eternal debate over the gambit correctness won't affect his desire to continue with playing Janish.

Michael Adams and Gata Kamsky

Round 4 standings:

1. Grischuk Alexander 2716 RUS - 3.0
2-7. Kamsky Gata 2726 USA, Radjabov Teimour 2751 AZE, Karjakin Sergey 2732 UKR, Gashimov Vugar 2679 AZE, Adams Michael 2729 ENG and Yue Wang 2689 CHN - 2.5
8-10. Carlsen Magnus 2765 NOR, Mamedyarov Shakhriyar 2752 AZE and Bacrot Etienne 2705 FRA - 2.0
11-12. Svidler Peter 2746 RUS and Inarkiev Ernesto 2684 RUS - 1.5
13. Navara David 2672 CZE - 1.0
14. Cheparinov Ivan 2695 BUL - 0.0

Round 5 on 25th April at 15:00 local time

Carlsen Magnus 2765 - Kamsky Gata 2726
Gashimov Vugar 2679 - Mamedyarov Shakhriyar 2752
Radjabov Teimour 2751 - Inarkiev Ernesto 2684
Cheparinov Ivan 2695 - Svidler Peter 2746
Karjakin Sergey 2732 - Wang Yue 2689
Navara David 2672 - Bacrot Etienne 2705
Grischuk Alexander 2716 - Adams Michael 2729