[Retros] No occupied white square

[Olli Heimo]

Hi- In fact no occupied white square is reached in 10.0 moves like: 1.e3 d6 2.Bd3 Be6 3.Bxh7 Bxa2 4.Bxg8 Bxb1 5.Bxf7+ Kxf7 6.h4 Bxc2 7.Qxc2 a5 8.Rh2 Ra7 9.g3 b6 10.Qc5 Kf6. Symmetric game leaves no men on black squares as well in 10.0 moves. Olli.

Olli Heimo kirjoitti 29.11.2013 kello 19:38:

> Thank You Juha for clever construction. I tried to get all men on white

> squares. By Juha's idea it seems to take 11.0 moves. Some other idea may

> cut the number of moves. I think that Eric's problem should be written

> like: "How many moves are required to get all men on samecoloured

>  squares.

> Olli.

> Juha kirjoitti 29.11.2013 kello 02:15:

> > My try, but it can't be optimal:

> > 

> > 

> > 1.g3 b6  2.Bg2 f6  3.Bxa8 Bb7  4.c3 Bxh1 5.Bd5 Bxd5

> > 

> > 6.Qc2 Bxa2  7.Qxh7 Bxb1  8.Qxg8 Bd3  9.exd3 d6

> > 10.Qxf8+ Kxf8  11.d4

> > 

> > 

> > 

> > 

> > 

> > > From: Eric.Angelini at kntv.be

> > > To: retros at janko.at

> > > Date: Wed, 27 Nov 2013 16:12:47 +0100

> > > Subject: [Retros] No occupied white square

> > > 

> > > Hello RetroFans,

> > > I guess this is old hat -- what is the length

> > > of the shortest game leaving no piece on white

> > > squares? I can't do better than 11.5 moves :-(

> > > Best,

> > > É.

> > > 

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