# A Tough Ending Problem

Yancey_Ward

B7/1n6/2k5/6P1/1Kp4p/3p3R/2r3b1/7R w - - 0 1

Yancey_Ward

B7/1n6/2k5/6P1/1Kp4p/3p3R/2r3b1/7R w - - 0 1

Comments (7)

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No. 1-7

Editor

Well done.

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.

Editor

Yes.

It's because of Rb1+.

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.

Editor

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

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.