Top Tweets for #retroanalysis
It's White's turn now, you must manoeuvre in such a way that after 46 black moves and 47 white moves the same position is reached, where obviously it will be Black's turn to play. (2/2)
#chess #chessbaseindia #positionoftheday #chessproblem #orthoreconstruction #retroanalysis
The last move can only be Kf2xQg1#. It's important to understand why it can't be Kf2xRg1, where the rook on g1 is a promoted pawn.
Here's a detailed discussion of the problem: https://t.co/pRvJi8YCyp
#chess #chessbaseindia #chessproblem #positionoftheday #retroanalysis
White has just played Kf2-g1 to checkmate the black king. But did it capture any piece on g1? If yes, what? Don't forget to explain your answer! π
#chess #chessbaseindia #chessproblem #retroanalysis #positionoftheday
WHAT WAS THE LAST MOVE PLAYED?
Was it Qc4-a4+ or Qb3-a4+?
Could the Q have captured on a4?
Whatever your answers, you must supply concrete proofs... π
- Gianni Donati, Chess Life, 2013
#chess #chessbaseindia #positionoftheday #chessproblem #retroanalysis #lastmove
Given the following position, determine the last two (single) moves played. Also, find the Shortest Proof Game to reach this position from the initial game-array.
- Andrew Buchanan, Retros Mailing List, 2021
#chess #chessbaseindia #positionoftheday #chessproblem #retroanalysis
Right now it is White's turn to play. A black bishop has just fallen off the board, can you restore it to the square it belongs?
- Nenad Petrovic, Bilten SSJ, 1946
#chess #chessbaseindia #positionoftheday #chessproblem #retroanalysis
It's WHITE TO MOVE.
On which of the following squares does placing the black king yield an ILLEGAL position?
(i) a1
(ii) c1
(iii) h1
Explain your choice with proper reasoning.
- Wolfgang Dittmann, Die Schwalbe '68, 2nd HM
#chess #chessbaseindia #chessproblem #retroanalysis
Time to wind back the clock! β²οΈπ
Can you figure out the last 11 (single) moves that were played to reach the diagrammed position?
- Yuri Lebedev, Andrey Frolkin (Die Schwalbe 1993, 3rd Prize)
#chess #chessbaseindia #positionoftheday #retroanalysis #logic #chessproblem
The solution to this can be found on our app, now downloadable from Google PlayStore: https://t.co/cHa3Gsu2uT
#chess #chessbaseindia #positionoftheday #chessproblem #helpmate #retroanalysis
This is quite an elementary Retrograde Analysis problem. However, if you think you'd still like to refer to the solution, feel free to download our app from Google PlayStore: https://t.co/cHa3Gsu2uT
#chess #chessbaseindia #chessproblem #positionoftheday #retroanalysis
ADD WQ & MATE IN 1
Just when White was about to deliver checkmate, his queen got knocked off the board! Put the white queen back on the square it must be and finish the game. π
- Hans KlΓΌver (Die Welt 1948)
#chess #chessbaseindia #positionoftheday #retroanalysis
Dazed and confused, are you? A nice and succinct explanation has already been uploaded to the ChessBase India app. Download it now from Google PlayStore: https://t.co/cHa3Gsu2uT
#chess #chessbaseindia #positionoftheday #retroanalysis #chessproblem
ADD THE BK & MATE IN 1
Just when White was about mate Black in 1, the black king got knocked off the board. Put the bK back on the square it belongs and finish the game! π
~ Werner Keym (Die Schwalbe, 1969)
#chess #chessbaseindia #positionoftheday #chessproblem #retroanalysis
Ghoda may not always be a respectable animal, folks. Can you use your detective skills to bust this ghoda scam here? The problem is taken from Raymond Smullyan's Chess Mysteries of Arabian Knights!
#chess #chessbaseindia #positionoftheday #chesspuzzle #retroanalysis
A CASE OF MISSING IDENTITY!!
In the given position, it is Black's turn to play. Of what color then is the knight on a1? π
~ Raymond Smullyan (The Chess Mysteries of Arabian Knights, 1981)
#chess #chessbaseindia #positionoftheday #chessproblem #retroanalysis #chesspuzzle
Note: The puzzle above is a joint production of five distinguished retroanalysts: Nikita Plaskin, Alexander Kislyak, Nenad Petrovic, Michel Caillaud, and Andriy Frolkin. It was published in a 1986 issue of the Die Schwalbe.
#chess #chessbaseindia #positionoftheday #retroanalysis
P.S. For those of you who are wondering, the possibility of both 1.0-0-0 and 1.0-0 are to be taken into account unless proven otherwise.
#chess #chessbaseindia #chessproblem #retroanalysis #positionoftheday #castling
In December 2019, I developed a routine for sprite matching. If I can locate a particular sprite in a frame of gameplay, I can replace it with another. Here I replaced Super Breakout sprites with Galaxian sprites. (cont.)
#retroanalysis
https://t.co/NSUcIGyuyM
An early popular tweet making use of the just-developed sprite extraction software. Some rookie mistakes here, most notably the way I did the resizing to compare the sprites from different systems.
Notice how some are blurry. (cont.)
#retroanalysis
https://t.co/4OhB4q2Gkt
Considering how iconic the original Space Invaders aliens were, it's surprising how much they changed them in its ports. I compiled this mosaic from the arcade, MSX, NES, Speccy, and Atari 2600/800/5200 versions.
#arcade #atari #MSXγγ
γ
LOVE #nintendo #retrogaming
The backbone for my sprite extraction and analysis tools was developed in December 2019. I tested it out on some sprites from early arcade games.
See if you can identify them, the challenge still stands! (cont.)
#retroanalysis
https://t.co/28XA6xn7ti
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