MESON Chess Problem Database
Problem Display
PID: 176995 (5r2/r2R2B1/1nN2p2/pb6/3p1p1Q/3pkPPn/3b2K1/3R1B2 w - - 0 1)
Keller, Michael
Schach-Echo, 1972
#3
9 + 12
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Sets
- 1...Ra6
- 2.Re7#
- 1...Raa8
- 2.Re7#
- 1...Rfa8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Rb8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Rc8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Rd8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Rg8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Rh8
- 2.Qxf6
- threat
- 3.Qxd4#
- 3.Qe5#
- 3.Qe7#
- 3.Qe6#
- threat
- 2.Qxf6
- 1...Bc1
- 2.Sxd4
- threat
- 3.Sf5#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Qe7#
- threat
- 2.Se7
- threat
- 3.Sf5#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Bxd4#
- threat
- 2.Sxd4
- 1...Be1
- 2.Sxd4
- threat
- 3.Sf5#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Qe7#
- threat
- 2.Se7
- threat
- 3.Sf5#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Bxd4#
- threat
- 2.Sxd4
- 1...Ba4
- 2.Rxd4
- threat
- 3.Rxd3#
- 3.Re4#
- 2...Sf2
- 3.Qxf4#
- threat
- 2.Rxd4
- 1...Ba6
- 2.Sxd4
- threat
- 3.Sf5#
- 2...f5
- 3.Qe7#
- threat
- 2.Se7
- threat
- 3.Sf5#
- 2...f5
- 3.Bxd4#
- threat
- 2.Sxd4
- 1...Sg1
- 2.Qxf4#
- 1...Sf2
- 2.Qxf4#
- 1...Sg5
- 2.Qxf4#
- 1...Sa4
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...Sc4
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...Sxd7
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...Sa8
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...fxg3
- 2.Qxd4#
- 2.Qe4#
- 1...f5
- 2.Bxd4#
- 2.Qe7#
- 1...Ra6
- Tries
- 1.Sxd4?
- threat
- 2.Sf5#
- 1...f5
- 2.Qe7#
- 1...Bxd7!
- threat
- 1.Se7?
- threat
- 2.Sf5#
- 1...f5
- 2.Bxd4#
- 1...Bxd7!
- threat
- 1.Bh6?
- threat
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxh3
- threat
- 3.Bxf4#
- 3.Qe6#
- threat
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Bxc6
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Sxd7
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxh3
- threat
- 3.Bxf4#
- threat
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Se7
- 1...Re8
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Rg8
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Bb4
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Bc4
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxh3
- threat
- 3.Bxf4#
- 2...Sd5
- 3.Qe6#
- threat
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Bxf4+
- 1...Sc4
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Bxf4+
- 2...Sxf4+
- 3.Qxf4#
- 2...Sxf4+
- 2.Qxh3
- threat
- 3.Bxf4#
- threat
- 2.Qxf4+
- 2...Sxf4+
- 3.Bxf4#
- 2...Sxf4+
- 2.Se7
- 1...Sd5!
- threat
- 1.Qxf6?
- threat
- 2.Qxd4#
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Rxd7
- 2.Qe5#
- 2.Qe6#
- 1...Bxc6
- 2.Qxd4#
- 1...Sxd7
- 2.Qxd4#
- 1...fxg3
- 2.Qxd4#
- 2.Qe5#
- 1...Re8
- 2.Qxd4#
- 1...Rf7
- 2.Qxd4#
- 2.Qe5#
- 2.Qe6#
- 1...Bc3
- 2.Qe5#
- 2.Qe7#
- 2.Qe6#
- 1...Bb4
- 2.Qxd4#
- 2.Qe5#
- 2.Qe6#
- 1...Bc4
- 2.Qxd4#
- 2.Qe5#
- 1...Sf2
- 2.Qxd4#
- 1...Sg5
- 2.Qxd4#
- 1...Sc4
- 2.Qxd4#
- 1...Sd5
- 2.Qxd4#
- 2.Qe5#
- 2.Qe6#
- 1...Sc8
- 2.Qxd4#
- 2.Qe5#
- 2.Qe6#
- 1...Rxf6!
- threat
- 1.Qxh3?
- threat
- 2.Qe6#
- 1...Bxc6
- 2.Qg4
- threat
- 3.Qxf4#
- 2...Bxf3+
- 3.Qxf3#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 2...Sd5
- 3.Qe6#
- threat
- 2.Qe6+
- 2...Be4
- 3.Qxe4#
- 2...Be4
- 2.Qg4
- 1...Sxd7
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Bh6
- threat
- 3.Bxf4#
- threat
- 2.Qg4
- threat
- 3.Qxf4#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 3.Qe4#
- threat
- 2.Qf5
- threat
- 3.Qe4#
- 3.Qxf4#
- threat
- 2.Qh4
- threat
- 3.Qxf4#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 3.Qe4#
- 3.Qh6#
- threat
- 2.Qh6
- threat
- 3.Qxf4#
- threat
- 2.Se7
- 1...Bc4
- 2.Se7
- threat
- 3.Sf5#
- 2...fxg3
- 3.Bh6#
- 3.Qh6#
- 2...Be6
- 3.Qxe6#
- 2...f5
- 3.Bxd4#
- threat
- 2.Bh6
- threat
- 3.Bxf4#
- 2...Sd5
- 3.Qe6#
- threat
- 2.Qg4
- threat
- 3.Qxf4#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 3.Qe4#
- 2...Sd5
- 3.Qe6#
- threat
- 2.Qf5
- threat
- 3.Qe4#
- 3.Qxf4#
- threat
- 2.Se7
- 1...Sc4
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Bh6
- threat
- 3.Bxf4#
- threat
- 2.Qg4
- threat
- 3.Qxf4#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 3.Qe4#
- threat
- 2.Qf5
- threat
- 3.Qxd3#
- 3.Qe4#
- 3.Qxf4#
- threat
- 2.Qh1
- threat
- 3.Qg1#
- 2...fxg3
- 3.Bh6#
- 3.Qh6#
- 2...Be1
- 3.Rxd3#
- threat
- 2.Qh2
- threat
- 3.Qg1#
- 2...fxg3
- 3.Bh6#
- 3.Qh6#
- 2...Be1
- 3.Rxd3#
- threat
- 2.Qh4
- threat
- 3.Qxf4#
- 2...fxg3
- 3.Bh6#
- 3.Qxd4#
- 3.Qe4#
- 3.Qh6#
- threat
- 2.Qh6
- threat
- 3.Qxf4#
- threat
- 2.Se7
- 1...Re8!
- threat
- 1.Qg4?
- threat
- 2.Qe6#
- 1...Bxc6
- 2.Qe6+
- 2...Be4
- 3.Qxe4#
- 2...Be4
- 2.Qe6+
- 1...Sxd7
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...Bc4
- 2.Se7
- threat
- 3.Sf5#
- 2...Be6
- 3.Qxe6#
- 2...f5
- 3.Bxd4#
- threat
- 2.Se7
- 1...Sc4
- 2.Se7
- threat
- 3.Sd5#
- 3.Sf5#
- threat
- 2.Se7
- 1...Re8!
- threat
- 1.Sxd4?
- Keys
- 1.g4!
- threat
- 2.Re1+
- 2...Bxe1
- 3.Qxe1#
- 2...Bxe1
- 2.Re1+
- 1...Bc3
- 2.Sxd4
- threat
- 3.Sf5#
- 2...Bxd4
- 3.Qe1#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Qe7#
- threat
- 2.Sxd4
- 1...Bb4
- 2.Sxb4
- threat
- 3.Qe1#
- 2...Sg1
- 3.Qf2#
- 2...Sf2
- 3.Qxf2#
- 2...d2
- 3.Sc2#
- threat
- 2.Se7
- threat
- 3.Sf5#
- 2...Bxe7
- 3.Qe1#
- 2...Bxd7
- 3.Rxd3#
- 2...f5
- 3.Bxd4#
- threat
- 2.Sxb4
- threat
- 1.g4!
There are these versions: 8306
FEATURES
NOT CLASSIFIED
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).