[Retros] Captureless queenside castling switchback?

[Kostas Prentos]

The problem is sound, according to natch. Well done!
Kostas


----- Original Message ----- 
From: "Olli Heimo" <olli.heimo at luukku.com>
To: <retros at janko.at>
Sent: Friday, July 20, 2007 5:19 PM
Subject: [Retros] Captureless queenside castling switchback?



> Hello!

> I have my summer holidays and cant use any solving

> programs. May this captureless queenside castling

> switchback be correct?

> r1b2bnr/pp1ppppp/1kp5/8/4PB2/Q2P3N/PPPnBPPP/R3KNqR

> SPG 12.5

> Intended solution:

> 1.e4 Nc6 2.Qf3 Ne5 3.Qa3 c6 4.d3 Qb6 5.Bf4 Kd8 6.Nd2 Kc7

> 7.0-0-0 Qe3 8.Nh3 Qe1 9.Be2 Qg1 10.Nf1 Kb6 11.Kd2 Nc4+

> 12.Ke1 Nd2 13.Ra1

> I am happy if someone could check it. Olli.