Comments (7)
No. 1-7
Yancey_Ward
Yancey_Ward

Editor

Well done.

Alena
Alena

V-1

1.R3h2! Bxh1
2.Rxh1 d2
3.Bxb7+ Kxb7
4.Rd1 c3
5.g6 Rc1
6.g7 c2
7.g8=Q Rb1+
8.Ka5 cxd1=Q
9.Qd5+ Kc7
10.Qc5+ Kd7
11.Qd5+ Ke7
12.Qe5+ Kf7
13.Qf5+ Kg7
14.Qg5+ Kh7
15.Qf5+ Kh6
16.Qf6

Here the black h-pawn comes in handy.It protects from escaping the black king.
There are a lot of perpetual checks. It's a draw.

V-2

1.R3h2! Bxh1
2.Rxh1 d2
3.Bxb7+ Kxb7
4.Rd1 c3
5.g6 Rc1
6.g7 c2
7.g8=Q cxd1=Q
8.Qd5+ Rc6
9.Qd7+ Kb6
10.Qd8+ Ka7
11.Qd7+ Kb6
12.Qd8+ Kb7
13.Qd7+ Rc7
14.Qd5+ Ka7
15.Qd4+ Ka8
16.Qd8+ Kb7
17.Qd5+
It's a draw.

Yancey_Ward
Yancey_Ward

Editor

Yes.

Alena
Alena

It's because of Rb1+.

Yancey_Ward
Yancey_Ward

Editor

However, before looking at the tablebase, do consider black's options after 6.g8(Q) to understand why black can win. It is important in finding the solution.

Yancey_Ward
Yancey_Ward

Editor

Alena, the position is los after 1.Rxh4?? You can confirm this by looking at the Nalimov Tablebase after Black's fifth move.

Alena
Alena

1.Rxh4! Bxh1
2.Bxb7+ Kxb7
3.Rxh1 d2
4.g6 Rc1
5.g7 Rxh1
6.g8=Q d1=Q
We reached the position: 6Q1/1k6/8/8/1Kp5/8/8/3q3r w - - 0 1. It's a critical position for white. Now white must be very cautious. The goal for white is to destroy the black c-pawn and give perpetual checks.The white queen must give precise checks so that the black queen couldn't protect the black king from checks.

7.Qf7+ Kc6
8.Qxc4+ Kd7
9.Qf7+ Kc6
10.Qc4+ Kd7
11.Qf7+ Kd6
12.Qf8+ Ke5
13.Qe7+ Kf5
14.Qf7+ Kg5
15.Qg7+ Kf5
16.Qf7+ Kg4
17.Qe6+ Kh4
18.Qe7+ Kh3
19.Qe3+ Kh4
20.Qe7+ Kg3
21.Qe5+ Kg2
22.Qg5+ Kh3
23.Qe3+ Kg2
24.Qg5+
It's a draw.


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