26...Nxb4! 27.Bb3 [27.cxb4? Qd4+ 28.Kh1 Nf2+ ] 27...Nxd3 28.Bxe6 Qxe6 29.Re2 Qc4 30.Kh1 Nc5 31.Qe1 Nxe4 0-1