0.
1.Rf8+
Attacker wins on every file except for same cases on b and g files 0.
1...Re8
2.Rf7
Re2!
3.Rh7
This waiting move forces the black rook to a worse square. The sixth rank is worst.
3...Re1
4.Rb7
Rc1
[ 4...Kc8
5.Ra7
Rb1
6.Rh7
Kb8
7.Rh8+
Ka7
8.Ra8+
Kb6
9.Rb8+
]
5.Bb3!
By controling d1 (no check) white forces black rook to the sixth rank
5...Rc3
[ 5...Kc8
6.Rb4
Kd8
7.Rg4
Re1
8.Ba4!
Kc8
9.Bc6
( 9.Rb4
rf; Bd7) 9...Kb8
10.Ra4
Rd1+
11.Bd5
]
6.Be6!
White returns his bishop to d5 with tempo after which the rook on the sixth rank is dominated - both f3 and b3 are unavailable
6...Rd3+
7.Bd5
Rc3
Now he needs to get the rook to b4 with tempo
8.Rd7+
Kc8
[ 8...Ke8
9.Rg7
]
9.Rh7
Kb8
10.Rb7+
Kc8
11.Rb4!
Kd8
[ 11...Rd3
12.Ra4
]
12.Bc4
with mate next *