1.Ra3+!
[Thematic try 1.Rh3+!?
Rxh3
2.0-0-0
Ra1+!
(2...Rc6+!?
3.Kb2
Rh2+
4.Ka3
Ra6+
5.Kb4+-
) 3.Kb2
Rxd1
4.f8Q
Rd2+
(Rh2)+=; 1.0-0-0!?
Rhc6+=
; 1.Kd1?
Rhd6+=
; 1.0-0??
Rag6#
] 1...Rxa3
2.0-0!
Rg6+
3.Kh2
[3.Kh1!?
Rh6+
4.Kg2
Ra2+
5.Kg3
Rg6+
6.Kh3
Rh6+
7.Kg4+-
loss of time (see main line after 5.Kg4)]
3...Ra2+
4.Kh3
Rh6+
5.Kg4
Rh8
6.Re1+
[6.f8Q??
Rg2+
] 6...Kf2
[6...Kd3
7.Re8+-
; 6...Kd2
7.Re8+-
]
7.Re8+-
.
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