I think it is the only way, there is no other blunder. If the rook was on the 8th rank, He could have slipped his hand (Rxg8+). If the rook was on the e-file then it wasn't a blunder. If he moved his king, he could've wanted to take the bishop, but was lured in by the possibility by mate. (Kd4-e5 instead of Rxg8) Mate is by far the biggest probability, because missing a mate in one is a HUGE blunder. @Bishop1964 I think u r correct and agree with ur judgement.
I see before
ep possible with d and f pawn but creator thinks f pawn is correct
what is last move??
no answer dubious puzzle I think
ep possible with d and f pawn but creator thinks f pawn is correct
what is last move??
no answer dubious puzzle I think
@turkiyem021
Your idea with a white pawn on d7 makes no sense.
Of course, White could have played then dxe8R. This would have led to the position in diagram 1/puzzle7.
But White wouldn't have had a checkmate in 1 move with the pawn on d7.
Therefore I came to the conclusion that the pawn must have been on f7 (diagram 2/puzzle7).
In this position "White1964" could have now committed the blunder fxe8R. (=diagram 1/puzzle7).
The best way would have been of course fxg8Q#.
This puzzle is very logical and not dubious at all.
But I am not really sure whether my solution is correct, due to this dubious looking second light squared bishop on e8.
I was only able to put a bishop on e8, because
- queen/rook are not possible = White would have been in check. No checkmate in 1 move for white.
- knight is not possible = Black could have played Ng7 after fxg8Q+. No checkmate in 1 move for white.
Maybe you want to give it another try ?
Your idea with a white pawn on d7 makes no sense.
Of course, White could have played then dxe8R. This would have led to the position in diagram 1/puzzle7.
But White wouldn't have had a checkmate in 1 move with the pawn on d7.
Therefore I came to the conclusion that the pawn must have been on f7 (diagram 2/puzzle7).
In this position "White1964" could have now committed the blunder fxe8R. (=diagram 1/puzzle7).
The best way would have been of course fxg8Q#.
This puzzle is very logical and not dubious at all.
But I am not really sure whether my solution is correct, due to this dubious looking second light squared bishop on e8.
I was only able to put a bishop on e8, because
- queen/rook are not possible = White would have been in check. No checkmate in 1 move for white.
- knight is not possible = Black could have played Ng7 after fxg8Q+. No checkmate in 1 move for white.
Maybe you want to give it another try ?
Just for your information. What kind of chess puzzles are these puzzles ?
What is Retrograde Analysis?
Retrograde Analysis is a genre of chess problems where the legality of the position is a key element. A position is legal if it can be reached through a legal chess game (no matter how weird).
Retros (i.e. problems with a Retrograde Analysis content) may ask for e.g. a mate in two, but the main content (at least in modern Retros) is in explaining the history of the position. Part of it anyway. This is essentially a matter of logical reasoning, with high appeal for puzzle enthusiasts.
What is Retrograde Analysis?
Retrograde Analysis is a genre of chess problems where the legality of the position is a key element. A position is legal if it can be reached through a legal chess game (no matter how weird).
Retros (i.e. problems with a Retrograde Analysis content) may ask for e.g. a mate in two, but the main content (at least in modern Retros) is in explaining the history of the position. Part of it anyway. This is essentially a matter of logical reasoning, with high appeal for puzzle enthusiasts.
Maybe someone wants to try to solve the puzzles which are shown in this study ?
Most of these studies are endgame studies, which are also very entertaining and challenging.
Most of these studies are endgame studies, which are also very entertaining and challenging.
@Bishop1964
Someone's lying for the -1 and #1. Black needs 8 captures for the pawn structure, plus a 9th for a promotion on a light square b1/d1.
White's missing 10 units, but two are useless (wBf1/wBc1), so only 8 units available for useful capture.
(I'm already familiar with retros though, I've composed a number of them and proof games too.)
Someone's lying for the -1 and #1. Black needs 8 captures for the pawn structure, plus a 9th for a promotion on a light square b1/d1.
White's missing 10 units, but two are useless (wBf1/wBc1), so only 8 units available for useful capture.
(I'm already familiar with retros though, I've composed a number of them and proof games too.)
@Illion
I can assure you that nobody is lying about the -1 and #1.
But it seems that you have very accurately figured out the my suggested solution with a pawn on f7 and a second light-squared bishop on e8 is incorrect.
But what is the real solution ? I promise that there is indeed a nice solution which fulfills -1 and #1.
I can assure you that nobody is lying about the -1 and #1.
But it seems that you have very accurately figured out the my suggested solution with a pawn on f7 and a second light-squared bishop on e8 is incorrect.
But what is the real solution ? I promise that there is indeed a nice solution which fulfills -1 and #1.
Alright, blindness strikes. -1. Ke6 and 1. Rxg8#.
@Bishop1964 I guess I owe an apology, in the form of this one (I composed it a few years back, inspired obviously by Tibor Orban's PG you shared).
PG 4.0
Reach this position after black's 4th move.
lichess.org/editor/rnbqkbnr/pppp3p/4p1p1/8/3P4/8/PPP1PPPP/RNB1KBNR_w_KQkq_-_0_1
PG 4.0
Reach this position after black's 4th move.
lichess.org/editor/rnbqkbnr/pppp3p/4p1p1/8/3P4/8/PPP1PPPP/RNB1KBNR_w_KQkq_-_0_1
@Illion
Referring to #48
Your answer is partially correct, but one key element is missing in your answer.
For someone like you it is quiet obvious, but maybe not for everybody.
Referring to #48
Your answer is partially correct, but one key element is missing in your answer.
For someone like you it is quiet obvious, but maybe not for everybody.
This topic has been archived and can no longer be replied to.