[Retros] No occupied white square
flab at wismuth.com
Tue Dec 31 16:55:07 EST 2013
On 12/31/2013 08:41 AM, Olli Heimo wrote:
> Unto Heinonen wants this to be published on the mailing list as a New Years Greeting: r1b1k1n1/1p1p1p1R/r1p5/3p3p/P7/3K1N1P/q1P1P1P1/1N1Q1B1R (12+12). Proofgame in 13.0 moves. This is because he informed me that he has now a sound proof game in 15,5 moves leaving 25 men on same-coloured squares and he is working with 26 men. Happy New Year, Olli.
Let me publish my record for 23 units then:
Proof game in 10.5 moves.
There's a variation with 22 units by removing Qf4.
On 12/20/2013 04:56 PM, Kevin Begley wrote:
> I presume that this "record" must be defined for n-units (from 2 to
> 32), in the shortest number of moves. You could further divide this
> into two square-colors.
> The point is, he should probably publish, regardless (unless somebody
> achieves n (or more) units on the same color, in fewer moves).
Here are the records so far:
20 units: 10.0 moves (François, variation of problem with 21 units)
21 units: 10.0 moves (François, to be published)
22 units: 10.5 moves (François, variation of problem with 23 units)
23 units: 10.5 moves (François, Retros mailing list)
24 units: 13.0 moves (Unto, Retros mailing list)
25 units: 15.5 moves (Unto, to be published)
Happy new year everyone!
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