Problem 939: Valery Shanshin

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Problem 939: Valery Shanshin - Twomover

(20.12.2018) The Russian grandmaster shows an excellent White correction and threat correction play in his nice twomover.

939. Valery Shanshin (Russia)

#2 vvvv (11+11)

1.Re8? (A) – 2.Rxe7#

1…gxf5 2.Re3# (B)

1…Sfr (a) 2.Sg7#

1…Bd8!

1.S~? – 2.Re3# (B)

1…d5! (b)

1.Se3? – 2.Bd5# (C) (2.Re3?)

1…Sf4! (a)

1.Sxd6!? – 2.Re3# (B)

1…exd6 2.Re8# (A)

1…Bxd6 2.d8S#

1…b4!

1.Sxe7! – 2.Re3# (B) (2.Bd5?)

1…d5 (b) 2.Bxd5# (C)

1…Kxe7 2.Re8# (A)

Choice play and Threat Correction (Author)

Comments

0 #1 Seetharaman Kalyan 2018-12-21 17:27

At the request of the composer, I have replaced today, an improved version with the solution remaining the same. (In the previous diagram the Bc7 was promoted one, though permissible as per convention).

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0 #2 Vitaly Medintsev 2018-12-23 15:17

Actually, solution of improved version slightly differs in the first try.

The whole solution is the following:

1.Re8(A)? – 2.R:e7#
1…g:f5 2.Re3(B)#
1…Sf4(a) 2.Sg7#
1…Bd8!

1.S~? – 2.Re3(B)#
1…d5(b)!

1.Se3? – 2.Bd5(C)# (2.Re3?)
1…Sf4(a)!

1.S:d6!? – 2.Re3(B)#
1…e:d6 2.Re8(A)#
1…B:d6 2.d8S#
1…b4!

1.S:e7! – 2.Re3(B)# (2.Bd5?)
1…d5(b) 2.B:d5(C)#
1…K:e7 2.Re8(A)#

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