1e4+0.2e5+0.22Nf3!+0.2Nc6!+0.23Bc4+0.1...Attacks the f7 pawn, which is weak as it's only defended by the king. Taking it even after a sacrifice could be good if the king has to move out of safety.3...Bc5+0.2Similarly, attacks the f2 pawn which is only defended by the king4c30.0...Done with the intention of pushing d5 and controlling the center4...Qe7?!+0.7Inaccuracy. Nf6 was best.4...Nf65.d3a56.O-Od67.Re1O-O8.h3h69.d45O-O+0.8...Castle early in the game, preferably on the kingside. Postpones d4 for now to get king to safety5...d6+1.06d4+0.6...d4 with the hope that black will exchange pawns. White would have a very good centre at that point.6...Bb6+0.97a4+1.0...Trying to trap the bishop, development first was probably a better idea.7...a6+0.98a5?!+0.2...Inaccuracy. d5 was best.8.d5Nb89.a5Ba710.Bd3Nf611.c4O-O12.h3Nh58...Ba7?!+1.1Inaccuracy. Nxa5 was best.8...Nxa59.Ba29h3+1.4...This is the weak move here, it makes the kingside weaker, a strong kingside is one which has three pawns just above the king and a piece guarding the pawns (knight here). The h2 move here makes the g3 pawn weak.9...Nf6+1.310dxe5??−0.5...lichessBlunder. Re1 was best.iliekcomputersThis move is in black's favour, it opens up the center. Notice that the bishop on a7 becomes much stronger now. It also pins f2, making g3 even weaker.10.Re1O-O11.Bb3h612.Be3b513.axb6cxb614.Nbd2Qc715.Nf1b516.Bc2Bb610...Nxe5−0.511Nxe5?!−1.3...lichessInaccuracy. Nbd2 was best.iliekcomputersMaking the kingside even weaker. With Qxe5, white has essentially removed a piece from the kingside defence for nothing.11.Nbd211...Qxe5−1.212Nd2??−3.3...Blunder. Qf3 was best.12.Qf312...Bxh3!−3.2and we start attacking the kingside. sacrificing the bishop for a pawn and a check with the hope of more pawns.13gxh3−3.9Qg3+!−3.9f2 is pinned by the bishop and g3 was already weak.14Kh1−4.1Qxh3+−4.515Kg1−4.3Ng4−3.5attacking the g3 pawn even more16Nf3−4.7Qg3+−4.317Kh1−4.1Qh3+17...Bxf218.Bxf7+Kxf719.Qd5+Ke720.Bg5+Kd721.Qf5+Kc622.Qd5+Kd723.Qf5+23...Ke824.Qe6+23...Kc624.Qd5+Kd725.Qf5+Kc626.Qd5+Kd727.Qf5+18Kg1g519Bxf7+Ke720Qd3Qg3+21Kh1Nxf2+22Rxf2Bxf223Bxg5+Kxf724Qd5+