mate in 1

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Avatar of CHEZ08
u can promote to any piece insteadwk.png
Avatar of gingerninja2003

there is a mate in two but not a mate in one. i even checked with an engine to confirm my suspicions.  

Avatar of TripleParakeetShoes
It's a trick where you have to "promote"to a black knight to lock down the b8 square.I think it's an illegal move though,not sure if FIDE specifies.
Avatar of DarkKnight1980

You are correct gingerninja2003 & I would have to agree with TripleParakeetShoes here.

Just a thought:

To get a checkmate in one move is only possible if you change setup of the puzzle.

You would have change the position of the Queen & Rook. Queen on c7 & Rook on g6 instead.

Avatar of DarkKnight1980

LilBoat21 wrote:

Promote to a black knight

LilBoat21 wrote: Promote to a black knight

Avatar of DarkKnight1980

I messed up that last message. LilBoat21, did you check TripleParakeetShoes post#3?

Avatar of Ageiswisdom

TripleParakeetShoes wrote:

It's a trick where you have to "promote"to a black knight to lock down the b8 square.I think it's an illegal move though,not sure if FIDE specifies.

That's clever. I would never have seen that.

Avatar of Ageiswisdom

ericw957 wrote:

Promote to a black pawn. happy.png

How could a black pawn get on that file?

Avatar of Steph_Curry2017
a black pawn could take the rook
Avatar of CHEZ08

answer:b8=bn.png

Avatar of Brendan_UK

@#1 Whatever you premote 1. Pb8 to, then Kxb8, so no mate in 1.

@#9 is mate in 4.

Avatar of eric0022
Brendan_UK wrote:

@#1 Whatever you premote 1. Pb8 to, then Kxb8, so no mate in 1.

@#9 is mate in 4.

 

It is correct by the current FIDE rules, but I believe that historically, pawns could be promoted to a piece of either colour. In both cases, promoting to a black knight will prevent the Black king from escaping, since players are not allowed to capture their own friendly pieces.

Avatar of eric0022

Promoting a White pawm to a Black bishop could also be useful in some cases, but for now I am yet to think of one case though.

Avatar of CHEZ08

pawm???

 

Avatar of eric0022
CHEZ08 wrote:

pawm???

 

 

Interesting that you managed to spot my misspelling. I did not realise it at all. I will leave my earlier post untouched though.

Avatar of Dodger111

It's a stupid puzzle with no legal solution you can't promote to an opponents piece this puzzle sucks 

Avatar of LM_player
The answer is to promote the pawn to a black piece isn't it?

I used to be fascinated by that idea in my early chess years.

It's nice to see others have considered the idea like I have.
Avatar of eric0022

@Dodger111 @LM_player

 

The solution is indeed to promote to a piece of the opponent's piece colour. The older rules of chess were that such promotions are legal. Of course, computer programs designed today do not incorporate these old rules, since the rules have changed over time and such promotions are no longer legal today.

 

Dodger111, in contrast to your opinion, I love these kinds of puzzles. More possibilities can occur in chess because more options are available (although this includes letting the opponent win by promoting a pawn to a queen of the other colour).

 

LM_player, there are other rules that were valid in the past, such as vertical castling since the rules of castling were not as strict in the past as they are today.

Avatar of Dodger111
eric0022 wrote:
Brendan_UK wrote:

@#1 Whatever you premote 1. Pb8 to, then Kxb8, so no mate in 1.

@#9 is mate in 4.

 

It is correct by the current FIDE rules, but I believe that historically, pawns could be promoted to a piece of either colour. In both cases, promoting to a black knight will prevent the Black king from escaping, since players are not allowed to capture their own friendly pieces.

Historically pawns could NEVER be promoted to an opponents piece. 

Never. Ever.

Avatar of wilsonga0

According to FIDE, this position would not retain a mate in one for white.