1 problem(s) found in 6116 milliseconds (displaying 1 problem(s)). [COMMENTDATE>=20200919 AND NOT K='Hilfsrückzüger' AND S='The Problem' AND K='Passives Opfer'] [download as LaTeX]
1. Dxe6? c3!
1. Dxd6? e3!
1. Dxc6? c3!, 1. ... d5!
1. Kc1? e3!
1. Sg3! droht 2. Kc1 droht 3. Le2#, 3. Dxe4#
2. ... c3, 2. ... cxd5, 2. ... exd5 3. Le2#
1. ... Kxd2 2. Dxc4 droht 3. Dc1+ Kd3 4. Le2#, 3. Sf1+ Ke1 4. De2#
2. ... Ke3 3. De2+ Kf4 4. Sxe4 droht 5. Df3#
1. ... c3 2. Da2 droht 3. Le2#
2. ... c2+ 3. Dxc2#
2. ... cxd2 3. Db3#
1. ... e3 2. Dg2 droht 3. De2#
2. ... exd2 3. Df3#
C11834 (Keller) 1.Sg3 (>2.Kc1 3.Be2#) Kxd2 2.Qxc4 (>3.Qc1+) Ke3 3.Qe2+ Kf4 4.Sxe4 5.Qf3. It is bad form for the key piece to be en prise – but here the wQ does not make the key move (JGG [Jim G. Grevatt]). Very good key. I spent a lot of time looking at Qxc6,d6,e6 (VS [Victor Snaith]).
(CHAMPIONSHIP ORIGINALS. SOLUTIONS (May), in: THE PROBLEMIST, NOVEMBER 2020)
1. Dxd6? e3!
1. Dxc6? c3!, 1. ... d5!
1. Kc1? e3!
1. Sg3! droht 2. Kc1 droht 3. Le2#, 3. Dxe4#
2. ... c3, 2. ... cxd5, 2. ... exd5 3. Le2#
1. ... Kxd2 2. Dxc4 droht 3. Dc1+ Kd3 4. Le2#, 3. Sf1+ Ke1 4. De2#
2. ... Ke3 3. De2+ Kf4 4. Sxe4 droht 5. Df3#
1. ... c3 2. Da2 droht 3. Le2#
2. ... c2+ 3. Dxc2#
2. ... cxd2 3. Db3#
1. ... e3 2. Dg2 droht 3. De2#
2. ... exd2 3. Df3#
C11834 (Keller) 1.Sg3 (>2.Kc1 3.Be2#) Kxd2 2.Qxc4 (>3.Qc1+) Ke3 3.Qe2+ Kf4 4.Sxe4 5.Qf3. It is bad form for the key piece to be en prise – but here the wQ does not make the key move (JGG [Jim G. Grevatt]). Very good key. I spent a lot of time looking at Qxc6,d6,e6 (VS [Victor Snaith]).
(CHAMPIONSHIP ORIGINALS. SOLUTIONS (May), in: THE PROBLEMIST, NOVEMBER 2020)
Keywords: Skittles, Skittles setup (Lion's cage), Sacrifice key, Active sacrifice, Passive sacrifice, Sacrifice of white pieces, Flight-giving key, Brian Stephenson Collection (228175)
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-11-26)
FEN: 8/8/2ppp3/2pQp2B/P1ppp3/3k4/3P4/1K3N2
Input: Kurt Keller, 2020-06-03
Last update: Kurt Keller, 2021-02-27 more...
Genre: n#
Computer test: Henrik Juel: C+ Popeye 4.61 (2020-11-26)
FEN: 8/8/2ppp3/2pQp2B/P1ppp3/3k4/3P4/1K3N2
Input: Kurt Keller, 2020-06-03
Last update: Kurt Keller, 2021-02-27 more...
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The problems of this query have been registered by the following contributors:
Kurt Keller (1)
(Jim Grevatt (Headly, England): CHAMPIONSHIP ORIGINALS. THREE- and MOREMOVERS, in: THE PROBLEMIST, MAY 2020)
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