MESON Chess Problem Database
Problem Display
PID: 14827 (8/1QB4P/8/r1pNPp2/2p1knqR/p6p/5PP1/K1N5 w - - 0 1)
Akerblom, Johan Axel
2nd Place, Sao Paulo Chess Club, 1955-1956
#3
10 + 9
SOLUTION
- SOUND
- Sets
- 1...Qd1
- 2.Rxf4#
- 1...Qe2
- 2.Rxf4#
- 1...Qf3
- 2.Sxf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sxf4+
- 1...Qh5
- 2.Rxf4#
- 1...Qxg2
- 2.Rxf4#
- 1...Qg3
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.fxg3
- threat
- 3.Rxf4#
- 2...Kd4
- 3.Rxf4#
- threat
- 2.Sc3+
- 1...Qg5
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...Qg6
- 2.Rxf4#
- 1...Qg7
- 2.Rxf4#
- 1...Qg8
- 2.Rxf4#
- 1...Ra4
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Rb5
- 2.Sc3+
- 2...Kd4
- 3.Sxb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra6
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra7
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra8
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Sd3
- 2.f3+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.f3+
- 1...Qd1
- Tries
- 1.Se3+?
- 1...Sd5
- 2.Qb1+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qxf5#
- 2...Kd4
- 2.Qb1+
- 1...Kd4!
- 1...Sd5
- 1.Sxf4+?
- 1...Kd4
- 2.Sfe2#
- 1...Kxf4!
- 1...Kd4
- 1.Se7+?
- 1...Sd5
- 2.Qb1+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qxf5#
- 2...Kd4
- 2.Qb1+
- 1...Kd4!
- 1...Sd5
- 1.Rxg4?
- threat
- 2.Rxf4#
- 1...Kd4
- 2.Rxf4#
- 1...fxg4!
- threat
- 1.h8Q?
- threat
- 2.Sxf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sxf4+
- 1...Kd4
- 2.e6+
- 2...Ke4
- 3.Sc3#
- 3.Sxf4#
- 3.Qe5#
- 2...Qg7
- 3.Rxf4#
- 2...Ke4
- 2.e6+
- 1...Qxh4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kxf4
- 3.Qxh4#
- 2...Kd4
- 2.Qxh4
- threat
- 3.Qxf4#
- 2...Kd4
- 3.Qxf4#
- threat
- 2.Sxf4+
- 1...Sxg2
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sc3+
- 1...Sxd5
- 2.Qb1+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Qb1+
- 1...Qf3
- 2.Sc3+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sfe2#
- 3.e6#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.e6
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sxf4#
- 3.Sb6#
- 3.Se7#
- 3.Qe5#
- 2...Qc3+
- 3.Sxc3#
- threat
- 2.Sc3+
- 1...Qg3
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.fxg3
- threat
- 3.Rxf4#
- 2...Kd4
- 3.Rxf4#
- threat
- 2.Sc3+
- 1...Qg5
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...Rb5
- 2.Sc3+
- 2...Kd4
- 3.Sxb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra6
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra7
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Se2
- 2.Sc3+
- 2...Kd4
- 3.S3xe2#
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Sxe2#
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfxe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.e6#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.f3+
- 2...Kd4
- 3.e6#
- 2...Kd4
- 2.e6
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sf4#
- 3.Sb6#
- 3.Se7#
- 3.Qe5#
- 3.f3#
- threat
- 2.Sc3+
- 1...Sd3
- 2.Sc3+
- 2...Kd4
- 3.S1e2#
- 3.S3e2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf6+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.f3+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.e6
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sf4#
- 3.Sb6#
- 3.Se7#
- 3.f3#
- 2...Sxf2
- 3.Qe5#
- 2...Se5
- 3.Qxe5#
- threat
- 2.Sc3+
- 1...Sh5
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sc3+
- 1...Sg6
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kf4
- 3.Qh6#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.Sc3+
- 1...c3
- 2.Sxf4+
- 2...Kd4
- 3.Qd5#
- 2...Kxf4
- 3.Qh6#
- 2...Kd4
- 2.e6
- threat
- 3.Sxc3#
- 3.Sxf4#
- 3.Qe5#
- 2...Qg7
- 3.Rxf4#
- threat
- 2.Sxf4+
- 1...Se6!
- threat
- 1.Se3+?
- Keys
- 1.e6!
- threat
- 2.Sxf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sxf4+
- 1...Qg7+
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sc3+
- 1...Kd4
- 2.h8Q+
- 2...Ke4
- 3.Sc3#
- 3.Sxf4#
- 3.Qe5#
- 2...Qg7
- 3.Rxf4#
- 2...Ke4
- 2.h8B+
- 2...Ke4
- 3.Sc3#
- 3.Sxf4#
- 2...Qg7
- 3.Rxf4#
- 2...Ke4
- 2.h8Q+
- 1...Qxh4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.Sxf4+
- 1...Sxg2
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sc3+
- 1...Sxd5
- 2.Qb1+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Qb1+
- 1...Sxe6
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...Qf3
- 2.Sc3+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sfe2#
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.h8Q
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sxf4#
- 3.Sb6#
- 3.Se7#
- 3.Qe5#
- 2...Qc3+
- 3.Sxc3#
- threat
- 2.Sc3+
- 1...Qg3
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.fxg3
- threat
- 3.Rxf4#
- 2...Kd4
- 3.Rxf4#
- threat
- 2.Sc3+
- 1...Qg5
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sxf4+
- 2...Kd4
- 3.Sce2#
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...Rb5
- 2.Sc3+
- 2...Kd4
- 3.Sxb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra6
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Ra7
- 2.Sc3+
- 2...Kd4
- 3.Sb5#
- 2...Kd4
- 2.Sc3+
- 1...Se2
- 2.Sc3+
- 2...Kd4
- 3.S3xe2#
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Sxe2#
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfxe2#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.f3+
- 2...Kd4
- 3.h8Q#
- 3.h8B#
- 2...Kd4
- 2.h8Q
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sf4#
- 3.Sb6#
- 3.Se7#
- 3.Qe5#
- 3.f3#
- threat
- 2.h8B
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sf4#
- 3.Sb6#
- 3.Se7#
- 3.f3#
- threat
- 2.Sc3+
- 1...Sd3
- 2.Sc3+
- 2...Kd4
- 3.S1e2#
- 3.S3e2#
- 2...Kd4
- 2.Se3+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sb6+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sf6+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Se7+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.f3+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.h8Q
- threat
- 3.Sc3#
- 3.Se3#
- 3.Sb4#
- 3.Sf4#
- 3.Sb6#
- 3.Se7#
- 3.f3#
- 2...Sxf2
- 3.Qe5#
- 2...Se5
- 3.Qxe5#
- threat
- 2.Sc3+
- 1...Sh5
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...Sg6
- 2.Sc3+
- 2...Kd4
- 3.S3e2#
- 2...Kd4
- 2.Sb4+
- 2...Kd4
- 3.Se2#
- 2...Kd4
- 2.Sf4+
- 2...Kd4
- 3.Sfe2#
- 2...Kd4
- 2.Sc3+
- 1...c3
- 2.Sxf4+
- 2...Kd4
- 3.Qd5#
- 2...Kd4
- 2.h8Q
- threat
- 3.Sxc3#
- 3.Sxf4#
- 3.Qe5#
- 2...Qg7
- 3.Rxf4#
- threat
- 2.Sxf4+
- threat
- 1.e6!
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).