19.dxe4
Diagram
19...Bxh2+
20.Kxh2
Rh6+
21.Kg1
Qh4
22.f3
Qh2+
23.Kf1
Qh1+
24.Kf2
Qh4+
25.Kg1
[25.g3?
Qh2+
26.Kf1
(26.Ke1
Qxg3+
27.Qf2
Rh1+
28.Ke2
Rh2
Ouch!) 26...Qh1+
27.Kf2
Rh2#
]
25...Qh1+
1/2-1/2