If you are familiar with promotion puzzles, you will know what you are looking for here in a general sense. This is a very special kind of promotion puzzle. After you solve it, can you see what is special about it? One last thing- the FEN is important here- pay attention to it.
All promotion puzzles have underpromotions as a theme, but this one was special in that white promoted pawns to all possible pieces from queen right down to a knight. That is unusual.
The theme was underpromotion.
The required solution ends at move 11 for white. Well done, so what is very special about this promotions puzzle? In other words, what was the theme?
It's a win for white. I like playing simple positions that's why I made 24th move.
Alena, it has never been clear to me if black can transpose the moves here to reach this stalemate theme. The main line queens the g-pawn first, and the composer gave 5. ....g1(Q) the exclamation point, so the composer thought 5. ....Rc2+ was probably inaccurate, or led to an uninteresting win for white. However, after 5. .....g1(Q) 6.Rxg1 Rc2+ 7.Kb1 Rb2+ 8.Ka1 Kc2 9.d8(Q) Rb1+ 10.Rxb1 Bd4 11.Qd4 stalemate is the main line. So, from this you need to find the method white must use to avoid the stalemate.