2 problem(s) found in 1375 milliseconds (displaying 2 problem(s)).

1 - P1301652
Johann Jacob Lowenthal
3 London Era 05/03/1854
P1301652
(5+5)
#4
1. b6+ Kxb6 2. Ld8+ Kb5 3. La5 ... 4. c4#
play all play one stop play next play all
Cook: Duale nach 1. ... Kc8,Kb8

Genre: n#
Input: Frank Müller, 2015-4-19
Last update: Alfred Pfeiffer, 2018-8-22 more...
2 - P1350684
Johann Jacob Lowenthal

P1350684
(4+6)
#4
1. h8=D! droht 2. Td2 ... 3. Db8#,Txe2#
2. ... Lc4 3. Db8+ Ke6,Td6 4. De8#,Dxd6#
2. ... Ld5 3. Txd5+ Ke6 4. De8#
sowie 2. Td5+ Lxd5 3. Db8+ Ke6,Td6 4. De8#,Dxd6#
und 2. Td6 ... 3. Ta6 ... 4. Db8#

1. ... Lf7 2. Td5+ Ke6 3. Td6+ Ke5,Ke7 4. Dxf6#,Dd8#
Co-Dual 3. Dd8 droht 4. Dd6#,Dd7#
3. ... Le8 4. Dxe8#
2. ... Lxd5 3. Db8+ Ke6,Td6 4. De8#,,Dxd6#
Co-Dual 2. Td7 droht 3. Te7+ Le6 4. Db8#
2. ... Ke6 3. Td6+ Ke5,Ke7 4. Dxf6#,Dd8#
2. ... Lg8 3. Te7+ Le6 4. Db8#
1. ... e1=D 2. Td5+ Lxd5 3. Db8+ Ke6,Td6 4. De8#,Dxd6#
1. ... f3 2. Td5+ Kf4 3. Dh4+ Ke3 4. Td3#,Dd4#
2. ... Lxd5 3. Db8+ Ke6,Td6 4. De8#,Dxd6#
play all play one stop play next play all
Henrik Juel: Correct key by Popeye 4.61, but damaged by duals (2018-5-31)
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comment
Keywords: Promotion Key
Genre: n#
Reprints: 43 Family Herald 28/05/1859
Input: Mario Richter, 2018-5-31
Last update: Alfred Pfeiffer, 2018-6-1 more...
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The problems of this query have been registered by the following contributors:

Frank Müller (1)
Mario Richter (1)