Why did he did so?

Technical questions regarding Openings, Middlegames, Endings etc.
soheil_hooshdaran
Posts: 1928
Joined: Tue Nov 05, 2013 5:24 pm

Re: Why did he did so?

Postby soheil_hooshdaran » Sat Sep 09, 2017 2:20 pm

What was the point behind this combination?

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "4q2r/1k4pp/n3p3/4Np2/bpQ5/4B3/1P3PPP/3R1K2 w - - 0 1"]

1. Rd6 Nc7 2. Rb6+ Kc8 *

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IM Jack Rudd
Posts: 3410
Joined: Tue Apr 17, 2007 1:13 am
Location: Bideford

Re: Why did he did so?

Postby IM Jack Rudd » Sat Sep 09, 2017 2:40 pm

That's not a combination. The aim of the manouevre was to get the rook to b6, a square both useful for attack (maybe with ideas of mate on b8 and the like) and defence (black is, in the diagram, threatening ...Bb5 winning the queen).

soheil_hooshdaran
Posts: 1928
Joined: Tue Nov 05, 2013 5:24 pm

Re: Why did he did so?

Postby soheil_hooshdaran » Tue Sep 19, 2017 5:06 am

Why is Black lost after:
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[SetUp "1"]
[FEN "5b2/3q1ppk/p1p4p/2p2r1N/2P1p3/1P2P2P/P5QP/6RK w - - 0 1"]

1. Qg4 Qe6 2. Nxg7 *
What's the problem with the initial Black's position?

Roger de Coverly
Posts: 15908
Joined: Tue Apr 15, 2008 2:51 pm

Re: Why did he did so?

Postby Roger de Coverly » Tue Sep 19, 2017 8:32 am

soheil_hooshdaran wrote:What's the problem with the initial Black's position?


Nxg7 looks a serious threat, but can be met by .. Rg5. If you pin the Rook by Qg4, that no longer works. The Rook is hanging if the Queen moves away. So .. Qe6. Now you play Nxg7 anyway. If .. Rg5, you have Nxe6 and if .. Rxg4, you win material because Nxf8 is check.

It's just calculation of a tactical sequence.


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