Blunder (11)

Position from Potkin - Caruana (Russian League 2010). White is already in difficulties, but could have played on with 30.Rb4 - securing the square b3. Instead he played 30.Re1??

No problem for Caruana to close the game with 30.- Qc1+ and mate in 2, 0-1

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Tactics (22)

White to move in Sargissian - Caruana (Ohrid 2009).



Solution (diff. ●●●○○): 1.Re6 fxe6 2.Bxh6+ Kg8 3.Rb3! 1-0 (3.-Qxb3 4.Qxe6+ Kh8 5.Qf7! with mate to follow)