1.d6!
[try 1.Sdc5+!?
Ka5!
2.d6
a2
3.d7
Rb8
4.Sb3+
Kb6=
] 1...a2
[1...Ka5
2.Se5!
(2.Sdc5?
a2
3.d7
Rb8
4.Sb3+
Kb6=
) 2...a2
3.d7
Rb8
4.Sc6++-
fork-1] 2.Sc3+
Ka5
[2...Kb4
3.Sxa2+
Rxa2
4.Se5
Ra8
5.d7+-
] 3.Sxa2
Rxa2
And so we have a position which generally is won by the white. However, to reach a win not so simple action [3...Rd2
4.Se5
Rxd6
5.Sc4++-
fork-2] 4.Bd3!!
zz [try 4.Sc5!?
Kb6
(not 4...Rd2?
5.Sb3+
fork-3) 5.d7
Kc7
(Rd2)=] 4...Ra4
[4...Ra1+
5.Kf2
Rd1
6.Ke3
Re1+
7.Kd4
Rc1
8.Kd5
Rd1
9.Se5+-
; 4...Rd2
5.Se5
Rd1+
6.Kf2
Kb6
7.Ke3
Ra1
8.Kd4+-
] 5.Sc5
[5.Se5!?
Kb6
6.Kf2
Rd4
7.d7
Kc7=
] 5...Rg4+!
[5...Rd4
6.Sb3++-
fork-4] 6.Kf2
Kb6
7.Sd7+!
blocking Pd6 7...Kb7
[7...Kc6
8.Se5+
fork-5] 8.Be4+!
Kc8
[8...Rxe4
9.Sc5+
fork-6] 9.Sb6+
Kd8
10.Ke3!
[Thematic try 10.Kf3!?
Rg6!
(not 10...Rh4?
11.Ke3
Rh6
12.Sc4
Kd7
13.Bf5+
Kc6
14.Se5+
Kd5
15.d7+-
) 11.Sc4
(11.Bxg6 model stalemate) 11...Rf6+!
12.Ke3
Kd7!=
] 10...Rg6
11.Sc4!
(Compare a position to thematic try after 11.Kc4. Thanks to the move 1.Ke3! the Black have no check). [11.Bxg6?
model stalemate]
11...Rf6
12.Kd4+-