[Retros] Mushikui Reconstruction (checkmate)

[Juha Saukkola]

It's "only" correct SPG.
 

> From: tsai39 at illinois.edu

> To: retros at janko.at

> Date: Thu, 26 May 2011 00:16:14 -0500

> Subject: Re: [Retros] Mushikui Reconstruction (checkmate)

> 

> > 1.d2-d4 e7-e5 2.d4*e5 Qd8-f6 3.e5*f6 Ke8-d8 4.f6*g7 f7-f5 

> > 5.g7*h8=Q f5-f4 6.Qh

> > 8*h7 f4-f3 7.Qh7*g8 f3*e2 8.f2-f4 e2*d1=S 9.Qg8*f8 dia

> 

> If I didn't misunderstand you, then you're suggesting that this game will 

> induce a valid mushikui sequence?

> 

> Let's see. This game, written in PGNep format, is

> 

> 1.d4 e5 2.dxe5 Qf6 3.exf6 Kd8 4.fxg7 f5 5.gxh8=Q f4 6.Qxh7 f3 7.Qxg8 fxe2 

> 8.f4 exd1=N 9.Qxf8#

> 

> Convert this to mushikui sequence and obtain

> 

> 1.** ** 2.**** *** 3.**** *** 4.**** ** 5.****** ** 6.**** ** 7.**** **** 

> 8.** ****** 9.*****

> 

> Now this sequence has at least 600 solutions (and then I quit the program to 

> save time). Some samples:

> 

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 a6 5.bxa8=N e5 6.Rxa6 e4 7.Re6+ dxe6 

> 8.d4 exd3ep 9.Nxc7+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c6 5.bxa8=Q g5 6.Rxa7 g4 7.Rxd7 Kxd7 

> 8.h4 gxh3ep 9.Qxd8+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=N c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.g3 bxc1=R 9.Rxd8+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=B c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.d3 bxc1=B 9.Rxe7+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q g5 6.Rxa7 g4 7.Rxd7 Qxa8 

> 8.h4 gxh3ep 9.Rxe7+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.g3 bxc1=Q 9.Rxe7+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.g3 bxc1=Q 9.Rxd8#

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.h4 bxc1=R 9.Rxe7+

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.h4 bxc1=R 9.Rxd8#

> 1.a4 b5 2.axb5 Na6 3.bxa6 Bb7 4.axb7 c5 5.bxa8=Q c4 6.Rxa7 c3 7.Rxd7 cxb2 

> 8.h4 bxc1=N 9.Qxd8#

> 

> So I think indeed it has more "content" than my problem, including 

> solutions.

> 

> 

> Mu-Tsun 

> 

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