[Retros] At home proof games in 7.0 moves

[CAILLAUDM at aol.com]

Francois> My computer finished enumerating all the at-home proof  games
Francois> in 7.0 moves or less. 

It would be interesting  for me to know how long you needed to
complete the search and what exactly  is the output of your
program (obviously the final positions + some extra  info, e.g. that
a castling occurred - but what exactly do you keep track  of?)


Again excellent work with very entertaining PGs!
Bravo, François!!


Noam>  Can such a proof game [with castling] (necessarily  7.5 moves
Noam>  or longer) be found with *Queenside*  castling?

How about the following:

a    b   c   d   e   f    g   h
+---+---+---+---+---+---+---+---+
8 |*r |*n |*b  |*q |*k |*b |*n | . | 8
+---+---+---+---+---+---+---+---+
7 |*p  |*p |*p |*p |*p |*p |*p |   | 7
+---+---+---+---+---+---+---+---+
6 |   | . |   | .  |   | . |   | . | 6
+---+---+---+---+---+---+---+---+
5 | . |   | . |   | .  |   | . |   | 5
+---+---+---+---+---+---+---+---+
4 |   | . |   | .  |   | . |   | . | 4
+---+---+---+---+---+---+---+---+
3 | . |   | . |   | .  |   | . |   | 3
+---+---+---+---+---+---+---+---+
2 | P | P | P | . |   | P | P |  P | 2
+---+---+---+---+---+---+---+---+
1 | . |   | .  |   | K | B | . | R | 1  (9+14)
+---+---+---+---+---+---+---+---+
a   b    c   d   e   f   g    h

fen=/rnbqkbn1/ppppppp1/8/8/8/8/PPP2PPP/4KB1R

SPG in  8.5


greetings
mario


I found the (nice) intention, but Euclide found the cook :
1.e4 h5 2.Qxh5 Rxh5 3.Nh3 Rxh3 4.Na3 Rxa3 5.d3 Rxd3 6.Be3 Rxe3+ 7.Kd2 Rxe4  
8.Re1 Rxe1 9.Kxe1
sorry, Mario!
 
Best,
 Michel
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