[Retros] last move type DD/ PxN=N

raosorio at fibertel.com.ar raosorio at fibertel.com.ar
Mon Mar 19 07:41:03 EDT 2007

Dear Mario,

"A typo or did you just overlook this?"

I'm affraid it's the 2nd. We were confident with the locking (no PxR=N) but we didn't check
the capture balance properly.

trying to rework it.


Dear Roberto,

> We found a new type DD position that we hope it's Ok,


> Jorge Lois & Roberto Osorio

> PxN=N/PxN=N/24 2b2bNq/1pppp1pk/6pp/8/8/PP6/KP1PPPP1/QnB2B2

As given, both black and white pawns must have made 4 captures - so
all missing pieces, including wRa1 and bRh8 were captured by pawns.
Therefore, last move cannot have been PxN=N, but PxR=N.

But after uncapturing a rook on g8/b1 thze black/white king is
locked and can never leave his prison.

A typo or did you just overlook this?



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