This can't be done. I gonna call this a joke to make people waste time. Thanks.
6 pawns on the h file
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Yes, it can.
Here is a well known, and perfectly legal chess problem:
White to play and mate in 8 moves.
hard
Here is the solution (spoiler alert).
It is not posible.
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Anthelitle... you need to look at this deeper. 3 of the black powns are not in the position to sacrifice so they need to be driven to do so, that is the pown in a,b, and c. In order to have them in a useful position for sacrifice you need to sacrifice 9white pices. Thath is all the posible sacrifical pices for the whites. the problems is that blacks need to make one extra sacrifice to drive one of the powns, the one in the a colum, let me show you what I am talking about:
So as you see in the position you need to drive those 3 black powns to the empty squares for that you need 9 pices let me show you:
NOtice you will need 2 sacrifices to drive the pown in the a colum to be able to be usefull, and we ready know there is not more material to sacrifice becouse all the black pices are ready needed to move the 6 white powns. Therefore there is not enougth material to solve this.
and looking my second diagram Would need 2 more pices in e and f. So whites doesn't have enougth material to drive those powns neigther...
See post #5.
and looking my second diagram Would need 2 more pices in e and f. So whites doesn't have enougth material to drive those powns neigther...
Ok was no counting with that pown upgrade... that change everything :P
Ummm... wrong.
Simple retroanalysis can prove the position in #1, #3 and #6 is absolutely legal.
You simply forgot the fact that the black pawns can be taken in any desirable square without having to take something themselves. They just need a free line to promote to "something".
Can you get to this position in a chess game? all moves have to be legal, but certainly dont have to be good moves. The way i found to do it was quite tricky, it doesnt matter where all the other pieces are on the board.
Thomas