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Originally posted by Dragon FireIt is impossible also, because everyone would make some sub-nominal move, thereby extending it to more than 517 moves (unless the defending side makes a poor move) in which case if could be less than 517
Yes its apparently true.
[fen]8/3r4/8/6n1/5k2/1b6/3K3N/7Q[/fen]
white to move and make 517 moves until the first capture when black, obviously, will resign.
Can anybody post a solution without cheating?
Originally posted by chesskid001No its not. See the solution as the 3rd post in this thread.
It is impossible also, because everyone would make some sub-nominal move, thereby extending it to more than 517 moves (unless the defending side makes a poor move) in which case if could be less than 517
Of course play a wrong move and white could lose or concede a draw. No one could actually play 517 moves correctly not even Kasparov. This must have been discovered using a tablebase.
As was pointed out previously:
* This is not a real game, but a puzzle.
* Not even the best players in the world would be able to forcast the win and thus would agree a draw.
* Even IF somebody would be able to play it out, the losing side would force a draw.
* The position is a theoretical maximum moves for a forced mate problem.
Nice.
Cannot wait to see the 40000or something forced mate from the starting position analysis
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Originally posted by PonderableOf course. It is an excercise in futility like calculating pi to infinite decimal places or breaking yet another land speed record.
* The position is a theoretical maximum moves for a forced mate problem.
Some people like these things. However if a theoretically forced mate can be found in 500+ moves with 7 pieces how many moves with 8?
... and it begs the question, is there a forced mate with 32 pieces and if so what move must white play to ensure this and how many moves is it?
Edit: I would play on as white as it is highly probable black will make a mistake reducing the number of moves to mate significantly
Originally posted by Dragon Fire
In a game this would be a draw by the 50 move rule
... but forcing a win in 500+ moves is still pretty neat.
And hey, in some rule sets (FIDE, maybe?) they will suspend the 50 move rule if it is a known-winning endgame that just takes over 50 moves to complete (like some weird KNN vs. KP endgames). So if you had a really cooperative arbiter, I suppose this could happen. 🙂
Originally posted by OrangeKingNot under FIDE rules. They have a hard 50 move rule.
And hey, in some rule sets (FIDE, maybe?) they will suspend the 50 move rule if it is a known-winning endgame that just takes over 50 moves to complete (like some weird KNN vs. KP endgames). So if you had a really cooperative arbiter, I suppose this could happen.
Originally posted by XanthosNZUnfortunately now true. We had this debate earlier when I had a K&2N vs K&P ending and I thought I had 100 moves (a win was forced in 54 moves but I messed it up anyway) but apparently FIDE have now repealed that and it is 50 moves regardless. Maybe because (like in this example) modern technology threw up ever more exceptions.
Not under FIDE rules. They have a hard 50 move rule.
So OTB this is a draw but it is still an interesting theoretical novelty and I expect (like with the calculation) of pi we will have an ever increasing record for the number of moves for a forced win that no one (not even a super GM) could even play on the board.
One day someone will prove that unless white plays 1. e4 (or maybe 1. d4) he losses in 365,932,648 moves.