[Annotations by WGM Tatev Abrahamyan] The pawn structure is rather ugly. White has more pawn islands, but it is Black who has clear targets (the b7- and f5-pawns) and needs to play accurately.30.Qb4...30.Qb2!?would pose some difficult problems for Caruana to solve.Qxe531.Qxb7Qc332.Qxa6Qxc533.Rc2Qa334.Kh2While the engines give White only a slight edge, the position looks scary for Black. The a-pawn might start marching down the board very soon, the black king is more exposed, and the f5-pawn is still weak. Black can find quick counterplay withQd6followed by ... Rf7-e7 going after the e3-pawn and ... h5-h4 targeting the g3-pawn.30....Bc831.Bxf5Rxf532.Rxf5Bxf533.Rxf5Rxe534.Rxe5Qxe535.Qxb7Qxg336.Qxc6Qe1+37.Kh2Qh4+38.Kg1Qe1+39.Kh2Qh4+40.Kg1Qe1+1/2-1/2 The game is a draw.1/2-1/2