MESON Chess Problem Database
Problem Display
PID: 59451 (3B4/p1Rp3p/Q2N4/P2pk3/5NP1/8/2pP3K/bbn5 w - - 0 1)
Stephenson, Brian D
WCSC, 1996
#3
9 + 9
| 5396 | World Chess Solving Championship 1977-1996 | 1997 |
SOLUTION
- SOUND
- Sets
- 1...Kd4
- 2.Bf6#
- 1...Kxf4
- 2.Qf1+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Qf1+
- 1...d4
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Rxd7#
- 3.Qc5#
- 3.Qd5#
- 2...Kxf4
- 2.Qb5+
- 1...Kd4
- Tries
- 1.Bf6+?
- 1...Kxf4
- 2.Qf1+
- 2...Kxg4
- 3.Qf5#
- 2...Kxg4
- 2.Qf1+
- 1...Kxf6!
- 1...Kxf4
- 1.Rc4?
- threat
- 2.Sf7#
- 1...dxc4
- 2.Qb5+
- 2...Kd4
- 3.Bf6#
- 3.Qd5#
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Qd5#
- 2...Kd4
- 2.Qb5+
- 1...d4
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Qc5#
- 3.Qd5#
- 3.Qb8#
- 2...Kxf4
- 2.Qb5+
- 1...Bd4!
- threat
- 1.Qe2+?
- 1...Kxf4
- 2.Rc4+
- 2...Bd4
- 3.Rxd4#
- 2...dxc4
- 3.Qe4#
- 2...d4
- 3.Qe4#
- 2...Bd4
- 2.Qf1+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Qf2+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Rc4+
- 1...Sxe2!
- 1...Kxf4
- 1.Qd3?
- threat
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kd4
- 3.Sb5#
- 3.Bf6#
- 3.Qxd5#
- 3.Qf6#
- 2...Kxd6
- 3.Qxd5#
- 2...Kd4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Sf7+
- 1...Bd4
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kxd6
- 3.Qxd5#
- 2...Kxd6
- 2.Qxd4+
- 2...Kxd4
- 3.Bf6#
- 2...Kxd6
- 3.Qf6#
- 3.Qxd5#
- 2...Kxd4
- 2.Sf7+
- 1...Ba2
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Sf7+
- 1...Sa2
- 2.Kg3
- threat
- 3.Sf7#
- 3.Qxd5#
- 2...Kxd6
- 3.Qxd5#
- threat
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kd4
- 3.Se2#
- 3.Sb5#
- 3.Bf6#
- 3.Qxd5#
- 3.Qf6#
- 2...Kxd6
- 3.Qxd5#
- 2...Kd4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Kg3
- 1...Se2
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kd4
- 3.Sxe2#
- 3.Sb5#
- 3.Bf6#
- 3.Qxd5#
- 3.Qf6#
- 2...Kxd6
- 3.Qxd5#
- 2...Kd4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Sf7+
- 1...Sb3
- 2.Kg3
- threat
- 3.Sf7#
- 3.Qxd5#
- 2...Kxd6
- 3.Qxd5#
- threat
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kd4
- 3.Se2#
- 3.Sb5#
- 3.Bf6#
- 3.Qxd5#
- 3.Qf6#
- 2...Kxd6
- 3.Qxd5#
- 2...Kd4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Kg3
- 1...d4
- 2.Sc4+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qe4+
- 2...Kxd6
- 3.Qd5#
- 3.Qe7#
- 2...Kxd6
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Rxd7#
- 3.Qc5#
- 3.Qd5#
- 2...Kxf4
- 2.Qf5+
- 2...Kxd6
- 3.Qc5#
- 3.Qd5#
- 3.Qf6#
- 2...Kxd6
- 2.Sc4+
- 1...a6
- 2.Sf7+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qf5+
- 2...Kd4
- 3.Bf6#
- 3.Qxd5#
- 3.Qf6#
- 2...Kxd6
- 3.Qxd5#
- 2...Kd4
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Sf7+
- 1...Sxd3!
- threat
- 1.Qc4?
- threat
- 2.Sf7#
- 1...Bd4
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Qxd4+
- 2...Kxd4
- 3.Bf6#
- 2...Kxd6
- 3.Qf6#
- 3.Qxd5#
- 2...Kxd4
- 2.Qxd5+
- 1...d4
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Rxd7#
- 3.Qc5#
- 3.Qd5#
- 2...Kxf4
- 2.Qd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Qf7
- threat
- 3.Qf6#
- 2...Kxd6
- 3.Qd5#
- 3.Qf6#
- 3.Qe7#
- threat
- 2.Qc5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qb5+
- 1...dxc4!
- threat
- 1.Qb5?
- threat
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Qxd5+
- 1...Kxf4
- 2.Qf1+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Qxd5
- threat
- 3.Qe4#
- 3.Qf5#
- 2...Kxg4
- 3.Qf5#
- threat
- 2.Qf1+
- 1...Ba2!
- threat
- 1.Qb7?
- threat
- 2.Qxd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Qxd5+
- 1...Kxf4
- 2.Qxd5
- threat
- 3.Qe4#
- 3.Qf5#
- 2...Kxg4
- 3.Qf5#
- threat
- 2.Qxd5
- 1...d4
- 2.Be7
- threat
- 3.Qe4#
- 2...Kxf4
- 3.Qe4#
- threat
- 2.Rc5+
- 2...Kxf4
- 3.Qe4#
- 2...Kxd6
- 3.Rd5#
- 3.Qd5#
- 3.Qc7#
- 2...Kxf4
- 2.Rxd7
- threat
- 3.Qe4#
- 2...Kxf4
- 3.Qe4#
- threat
- 2.Qe4+
- 2...Kxd6
- 3.Qd5#
- 3.Qe7#
- 2...Kxd6
- 2.Qd5+
- 2...Kxf4
- 3.Qe4#
- 3.Qf5#
- 2...Kxf4
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Rxd7#
- 3.Qc5#
- 3.Qd5#
- 2...Kxf4
- 2.Be7
- 1...Ba2!
- threat
- 1.Qb6?
- threat
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qe3+
- 1...Kxf4
- 2.Qf2+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Qf2+
- 1...Bd4
- 2.Qxd4+
- 2...Kxd4
- 3.Bf6#
- 2...Kxd6
- 3.Qf6#
- 3.Qxd5#
- 2...Kxd4
- 2.Qxd4+
- 1...d4
- 2.Qc5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qb5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxd6
- 3.Rxd7#
- 3.Qc5#
- 3.Qd5#
- 2...Kxf4
- 2.Qc5+
- 1...axb6!
- threat
- 1.Bf6+?
- Keys
- 1.Qxa7!
- threat
- 2.Qe3+
- 2...Kxd6
- 3.Qe7#
- 2...Kxd6
- 2.Qe3+
- 1...Kxf4
- 2.Qf2+
- 2...Kxg4
- 3.Qf5#
- 2...Ke5
- 3.Qf6#
- 2...Kxg4
- 2.Qf2+
- 1...Kxd6
- 2.Rc6+
- 2...Ke5
- 3.Qe3#
- 2...Kxc6
- 3.Qb6#
- 2...dxc6
- 3.Qe7#
- 2...Ke5
- 2.Rc6+
- 1...Bd4
- 2.Qxd4+
- 2...Kxd4
- 3.Bf6#
- 2...Kxd6
- 3.Qf6#
- 3.Qxd5#
- 2...Kxd4
- 2.Qxd4+
- 1...d4
- 2.Qc5+
- 2...Kxf4
- 3.Qf5#
- 2...Kxf4
- 2.Qc5+
- threat
- 1.Qxa7!
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).