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Dimension X, Problem # 7. An endgame problem for Dimension X, after Pawn g5-g6 who wins?[All Comments] [Add Comment or Rating]

💡📝Gary Gifford wrote on Wed, Jul 12, 2006 04:57 PM UTC:

So far I have received no correct solutions to Problem # 7.  The
previous 6 problems had been solved within a day or two after posting...
so maybe this one is too hard... but let me assure you, it is not actually
hard, but it is very different from the others. I will provide a hint
below.  Unless anyone wants more time I will post the solution on July
14.

Hint:  Unlike previous problems, this one actually takes several moves and
involves manuevering in Dimension X.  The problem begins with a shown pawn
move for White, and then Black can win regardless of what White does, if
he (or she) uses the proper technique.

Note: Since the diagrams from problems 1 through 6 have been removed for
bandwidth help, I will try to use Forsythe text descriptions and re-add
them in text format (sometime before the weekend).  I believe the problems
(along with Tom's analysis) are a good teaching aid to this game.

Best regards. gkg

💡📝Gary Gifford wrote on Thu, Jul 13, 2006 09:50 AM UTC:

A note to DX problem solvers: I have received one potential solution - however, it argues that the game can only be 'drawn' by black with best play. My solution shows a black win. I will investigate later today to find out who is right. It is possible I was tricked by my own problem... but I hope not. If that is the case I will let you know and hang my head low. (to be continued...)

💡📝Gary Gifford wrote on Thu, Jul 13, 2006 09:36 PM UTC:

Despite my unintentionally erroneous, and therefore misleading hint,Thomas
J. McElmurry correctly solved the DX 7 problem by proving White can force
a draw.  Black can only win if White plays inferior moves.  The solution
will be posted tomorrow evening.  So, I find it interesting that I failed
to solve my own problem  :(  .  For those who still
want to solve problem 7, the question should be:

How can White force a draw?
Note that the position will be reduced to King, Crab, and Spider versus
King and Spider because White cannot prevent the loss of his pawn.

💡📝Gary Gifford wrote on Fri, Jul 14, 2006 09:24 PM UTC:

Thomas J. McElmurry's correct solution to DX Problem 7 appears in the game rules (near the end of the Notes section). Tom discovered an interesting truth regarding draws in certain 'King + Spider' versus 'King + Crab + Spider' Endgames. Tom, many thanks for the valuable analysis.

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