(Who) mates in 1?

• #1

(Who) mates in 1?

J.-L. Turco
diagrammes 60, 01/1983

• #2

Who's turn is it?

• #3

• #4

Blacks mates
• #5

Are you sure it has to be Black's turn?

• #6

If you're asking in a problem who's to move, there must be a well-defined answer. If I can arrange it such that it's black to move, it therefore must be black to move. (Proof by smart-alec logic.)

I jest, of course. There is a way to prove it properly.

• #7

No, you're reasoning it wrong. This problem appears on a magazine, so it cannot be cooked. Then you may follow with your reasoning. :P

• #8

chaotic_iak wrote:

This problem appears on a magazine, so it cannot be cooked.

This is always true. Especially so for my originals.

• #9

chaotic_iak wrote:

This problem appears on a magazine, so it cannot be cooked.

This is always true. Especially so for my originals.

It is so true that the new Android app double-posted it.

• #10

There really are many variations of this puzzle. The concept is the ability to lose a tempo (you can also add moves like a3/h6 etc). So now, the solution should be obvious. Or at least more so.

• #11
chaotic_iak wrote:

Are you sure it has to be Black's turn?

Yes, no pieces can triangulate

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