[Retros] Task - double check mate

Allan Bell allanb at gofree.indigo.ie
Tue Oct 3 10:52:01 EDT 2006

Yes. It's a pity that all other knight moves are mate as well, including
the other double-check mate 6.... Se7-d5.

It achieves the task, but the double check is not required to give mate
(sufficient, but not necessary). Is there a short game where the final
double-check on the home square is the only move to deliver mate?



----- Original Message -----
From: <raosorio at fibertel.com.ar>
To: <unlisted-recipients:>; <no To-header on input>
Sent: Monday, October 02, 2006 12:28 PM
Subject: [Retros] Task - double check mate


> Allan Bell wrote,


> As suggested by Noam, here is a double check-mate (with captures) given by

> a piece returning to its home square. Both checks are required.


> 1.Pa2-a4 Pe7-e5 2.Ra1-a3 Ke8-e7 3.Ra3-e3 Ke7-d6

> 4.Sb1-c3 Kd6-c5 5.Pb2-b4 Kc5xb4 6.Bc1-a3 Kb4xa3

> 7.Qd1-b1 Pb7-b5 8.Qb1xb5 Bf8-b4 9.Ke1-d1 Pd7-d6

> 10.Kd1-c1 Bc8-f5 11.Kc1-b1 Bf5xc2 12.Kb1-a1 Pf7-f5

> 13.Sc3-b1


> But there must be a shorter setting.


> Here is one without captures,


> 1.Pe2-e3 Pd7-d6 2.Ke1-e2 Bc8-h3 3.Ke2-f3 Pe7-e6

> 4.Kf3-f4 Sg8-e7 5.Kf4-g5 Pg7-g6 6.Kg5-f6 Se7-g8

> natch 0.22 s


> Regards,


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