2 problem(s) found in 1730 milliseconds (displaying 2 problem(s)). [COMMENTDATE>=20220810 AND K='Springeropfer' AND A='Altmann, Ernst'] [download as LaTeX]

1 - P1403974
Ernst Altmann
Deutsches Wochenschach 1912

(5+11) C+
#4

1. Da8? La5 2. De8 Tc5!

1. Sf2! droht 2. Tg4#
1. ... Lxf2 2. Da8 Lb6 3. De8 Tc5 4. De1#

Henrik Juel: C+ Popeye 4.61, except for the mate trial 1.Sf2 Lxf2 2.Da8 Lb6 3.De8 (thr. 4.Dh5,De7#) Ld8 4.Dh5,De1,Dxd8# (2022-08-31)
comment

Keywords: Steering, Preplan, Sacrifice key, Knight sacrifice, Line closing
Genre: n#
Computer test: Juel: Popeye 4.61
FEN: 8/3p2RK/2rp3p/8/Q1n2N1k/1n1p3N/1rp5/4b3
Reprints: 5 Die Schwalbe 11, p. 270, 10/1971
278 Versunkene Schätze , p. 121, 1998
Input: Dieter Berlin, 2022-08-31
Last update: Dieter Berlin, 2023-09-28 more...

2 - P1404795
Ernst Altmann
Münchener Schachzeitung 1911

(7+10)
#3

1. Se4! g5 2. Sg3 g4+ 3. Kf2# 2. ... Sd3 3. Ke2# 2. ... Lxg3 3. Kxg3#
2. ... d3 3. Ke3# 2. ... gxf4 3. Kxf4#
1. ... Le1 2. Sf2 ... 3. Kg3# 2. ... h4 3. Kg4# 2. ... Lxf2 3. Kxf2# 2. ... Se2 3. Kxe2#
1. ... Sb4 2. Sexc3+ dxc3 3. Ke3#
1. ... Sb3 2. Sf6+ exf6 3. Ke2#
1. ... d3 2. Ke3 Lf2+ 3. Sxf2#

Henrik Juel: dual 1... Lf2 2.Sxf2,Sf6+ and some mate duals (2022-10-02)
comment

Keywords: Batterienutzung, mehrfache, Knight sacrifice
Genre: 3#
FEN: 8/4p3/Q3P1p1/2Nk3p/N2p1P1b/2p2K2/n1p5/2n4B
Reprints: 204 Versunkene Schätze , p. 92, 1998
Input: Dieter Berlin, 2022-10-01
Last update: Dieter Berlin, 2022-10-01 more...

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