Robert Ris: "I take a look at the spectacular queen sacrifice from the 1st-round game Suleymanli–Karthikeyan at the FIDE Grand Swiss in Samarkand.
White came very well prepared in one of the main lines of the Sicilian Alapin Variation, while his opponent clearly neither knew nor expected this particular line. White obtained fantastic compensation for the queen, although with precise play Black should still have been fine. One big mistake (18…Bg6??) and it was game over! In the diagram below, we see the first moment in the game when White actually had to spend some time thinking."
Exercise: White to play and win!
Feel free to move the pieces on the live diagram!
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