Brain Challenge

I had forgotten about this composition until yesterday. Another masterpiece by Ostmoe.

8/2PP4/1rPp4/3p4/1k1P4/2p1B2p/KpP4P/8 w - - 0 1

Comments
No. 1-4
DaveCubby
DaveCubby

After Qxa6, 2...b1=Q+!, 3. Kxb1 stalemate!!

Alena
Alena

It was a very beautiful puzzle.

Alena
Alena

1.c8=B! Rb5
2.d8=B! Rb8
3.Bb7 Rxd8
4.c7 Rf8
5.Ba6 Ra8
6.c8=B Ka5
7.Bf2 Rxa6
8.Bxa6 Kxa6
9.Be1 b1=Q
10.Kxb1 Ka5
11.Bxc3+ Kb5
12.Ka2 Kc6
13.Kb3 Kd7
14.Kb4 Kc6
15.Be1 Kb6
16.Bg3 Kc6
17.c3 Kd7
18.Kb5 Kc7
19.Bf4 Kd7
20.Kb6 Ke6
21.Kc7 Kf5
22.Bg3 Ke4
23.Kxd6 Kf5
24.Kxd5 Kf6
It's a winning position for white.
I saw the idea how to solve this puzzle very quickly.

DaveCubby
DaveCubby
  1. c8=B!!! (Not 1. c8=Q?? Ra6+!!, 2. Qxa6 stalemate!!)

Stories