It was clear one of the 7th-rank pawns had to promote to a piece that could deliver checkmate. After a bit of thought I found the solution, including all the variations, so I'm happy with that! Thank you, Mikael (and Sam Loyd). 👍👍👍👍👍
I went with try and error (nearly the same path as your explanation) and finally solved it. Thank you for taking time to present all these marvelous puzzles.
Mr. von Bargen, your studies must be paying off. I solved this one, remaining open to the idea of underpromotion, and even identifying the stalemate traps. It could be that I'm merely a blind squirrel finding the acorn, but at least today I'll not go hungry.
Found it after some time. Promoting to a Queen leads to a mate in 2 when black takes the Queen. But Black is not forced to take the Queen. And you have a stalemate trap. Underpromoting to a knight and protecting the pawn is not the solution. When promoting to a Queen leads to a stalemate, promoting to a Rock is the natural solution.
I did, after realizing that 1.f8Q+,Kxh7 would lead to a stalemate after Kf6, and 1,,,,, Kg6 would lead to a stalemate after h8Q. I decided to consider two minor-promotions instead.
It was clear one of the 7th-rank pawns had to promote to a piece that could deliver checkmate. After a bit of thought I found the solution, including all the variations, so I'm happy with that! Thank you, Mikael (and Sam Loyd). 👍👍👍👍👍
I went with try and error (nearly the same path as your explanation) and finally solved it.
Thank you for taking time to present all these marvelous puzzles.
Mr. von Bargen, your studies must be paying off. I solved this one, remaining open to the idea of underpromotion, and even identifying the stalemate traps. It could be that I'm merely a blind squirrel finding the acorn, but at least today I'll not go hungry.
Lloyd was the best!
Excellent puzzle, I loved it. Great learning. Thank you very much.
Obviously an underpromotion to avoid stalemate. Still, a little tricky.
Found it after some time. Promoting to a Queen leads to a mate in 2 when black takes the Queen. But Black is not forced to take the Queen. And you have a stalemate trap. Underpromoting to a knight and protecting the pawn is not the solution. When promoting to a Queen leads to a stalemate, promoting to a Rock is the natural solution.
I did, after realizing that 1.f8Q+,Kxh7 would lead to a stalemate after Kf6, and 1,,,,, Kg6 would lead to a stalemate after h8Q. I decided to consider two minor-promotions instead.
muy interesante. lo anima a uno a tratar de jugar.
Looked quite tricky at first. But then I saw the underpromotion.
Good❤
Promoting to a knight is working too!!
Пешка f4 лишняя
Wrong
The f4 pawn prevents the black king from escaping to g5 when white delivers the coup de gras.
certainly 🙂