[Retros] shortest Madrasi PG stalemate ended - Solution

Joost de Heer joost at sanguis.xs4all.nl
Sun Apr 6 11:19:52 EDT 2008

raosorio at fibertel.com.ar wrote:

> Hi,

> Here follows the best version we have of the task (the shortest dual free PG stalemate

> ended under Madrasi stipulation).


> Jorge Lois and Roberto Osorio

> rnbq1bnr/ppppp3/6p1/7k/4P1Pp/3P3Q/PPP2P1P/RNB1K1NR

> PG in 6.5 moves


> 1.e4,h5 2.Bc4,h4 3.Bxf7+,KxB 4.Qf3+,Kg6 5.Qh3,Kh5 6.d3,g6 6.g4 (# Orthodox, = Madrasi).

It's possible to get a stalemate in 6.0:

1. f3 d5 2. Kf2 Qd6 3. h4 Qh6 4. h5 Sf6 5. Kg3 Se4 6. Kh4 g5=

I haven't been able to find an exact proofgame in 6.0 though (although
the black play is determined in the above proofgame), nor an inexact one
in 5.5.


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