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Problem 609: Ivan Soroka - Selfmate

ivan.soroka(19.09.2015) Long selfmate Meredith by Ivan Soroka with two main variations, black promotions and creation of batteries.








   1.Rb8! (zz)

   1…c1S 2.Rf3+ Kc2 3.Qa4+ Sb3 4.Qa2+ Kc1 5.Be3+ Sd2

6.Qa3+ Kc2 7.Rb2+ Kc1 8.Rb4+ Kc2 9.Qb2+ Kd3 10.Bf2+ Sxf3#

   1...c1R 2.Qd4+ Kc2 3.Rf2! Ra1 4.Qc5+ Kd3 5.Rd8+ Ke4

6.Rd4+ Ke3 7.Rb4+! Kd3 8.Qd4+ Kc2 9.Qb2+ Kd3 10.Qb3+ Bxb3#

(3...Rb1 4.Qc5+ Kd3 5.Rd8+ Ke4 6.Qc4+ Ke5 7.Bd4+ Ke4 8.Qe6+ Kd3 9.Qe2+ Bxe2#)

1...c1Q/B 2.Qd4+ Kc2 3.Qe4+ Kc3 4.Bd4+ Kc4 5.Bf2+ Kc3 6.Qd4+ Kc2 7.Qd2+ Q/Bxd2#

Black Allumwandlung, creation and play of white batteries in 2 variations (Author)



+1 #1 Seetharaman Kalyan 2015-09-19 14:26
A long selfmate with two variations is in itself an achievement. The play in both is good. However, not an AUW as no distinct variations for Q/B promotions.
+1 #2 Kjell Widlert 2015-09-24 20:54
I am always very impressed by economical long selfmates with two (or more) distinct full-length variations: is it luck or magic intuition from the composer that both variations work in exactly the same high number of moves?

So I am impressed by this too, although it must be said that Bd1 has no function in the c1S line.

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