[%c_effect e3;square;e3;type;Interesting;persistent;true] This is a modern idea that Svidler confessed was suggested to him by Praggnanandhaa. The old main line is
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. b1c3  3... g8f6  4. d2d4  4... c5d4  5. d1d4 [%cal dd1d4][%c_arrow d1d4;keyPressed;none;from;d1;opacity;0.8;to;d4;persistent;false] Svidler decides to take the game along paths a little less traveled in the Sicilian Defense. The queen capture on d4 has always had its supporters and is a dangerous attempt when used as a surprise. 5... b8c6 