New answers tagged

2

Is this a valid solution? 14 points


1

I think the goal is to Retry:


16

I believe I've found a solution worth 16 points.


5

Here's a solution which needs points:


0

Just to complete the picture here, here is @astralfenix's given position, but with a White King for a full and complete answer. So thus the optimal answer to this question is 141 possible checkmates mates in 1.


2

This might be wrong because I haven't checked it with a computer.


1

I think the answer is Explanation: I don't know how to add a chess board highlighting the key moves.


3

I'm going with the legal version being: And the illegal one being:


3

Well, I'd thought to prove that it was insoluble Pawns Black Bishops White King Black Knight Rooks Movable pieces ...and this is the point where my proof falls apart and I realize that @Braegh has the right of it because... Ah, well.


8

At risk of being wrong because of a mental mistake: It's easy to reason that the total amount of moves by White must be even: Given that our first Black moves are at which point we can finally lose our tempo. Since White's next move is 28. Rd1, for a total of


2

Observe A nice idea that doesn't work Final comment Solution: apronus link The concept that could be considered arising from this problem could be


6

Edit: This solution doesn't seem to work I'll leave it to show how having a cylindrical board can affect endgame outcomes - sometimes counterintuitively ! Another solution with is to mate with Indeed, An example: Note that


4

Beginning of answer (?) (Updated) This time around, the pawns are the obstacle, as they can move forward to defend all while being promoted What a cruel little sister though, she could have ended his misery with just one move starting with this board !


2

Observation. Let us start with The next move must be Then From now on the strategy is to So, as planned Let's fast forward:


6

The title means Here is a solution: apronus link. PGN: Note that


5

It's easily legal. Black's last move was: Here's a possible sequence of the last few moves:


28

I claim that The reason:


8

I think that: The last sequence is


9

Unfortunately, and I'm just going to plain say it outloud, @Kevin's answer is actually wrong, but only by a tiny bit. As @Kevin originally, and incorrectly, assumed was that the rook had to be captured with checkmate. While that is generally true for most rambling rook puzzles (In fact, Tim Krabbe himself invented the term "rambling rook!), it turns that ...


5

As per requested by @Dorian Fusco, here is what my original solution was before. @BoredAtWork, amazingly, and to my surprise, found an alternate way! Congratulations to them! My Original Solution: Now do you see why I considered this to be a tricky question? ;D


8

I think I've figured it out. Does that look right?


1

I've looked at this problem for so long that I begin to think perhaps the composer made a slight error in the composition. So I think it would be smart to ask the composer if my try is what he had in mind before I continue cracking my brain. My try is as follows: 1.Bh5+ Rg4 Then the next 4 black pawn moves are forced (irrespective of the order in which they ...


0

5 points: 6 points: 9 points: Obviously this is not an optimal solution and shall be expanded upon later...


5



2

Since the puzzle doesn't say that the checkmate must be immediate, allowing for a placement and then a move is made with mate, I believe that under these circumstances: Place:


4

I think Where


1

This is probably bending the rules, but.... As follows:


3

Opening bid: 6 points. Bishop on b7, knight on d7. Black is forced to play Ka7, then White can play b6#. Real answer (thanks @Sid!)


0

I can do it in 3 points:


7

I can do it with As follows


3

With a King, Pawn and Rook (6 points), it is straightforward to force the black King back toward the final rank. The key is to have the rook protected by the pawn, with the black king on a higher rank. Eg.: From here, the white king chases the black king to get opposite it (same column, 2 ranks down), and with the black king at least 2 columns away from ...


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