MESON Chess Problem Database
Problem Display
PID: 252053 (3Q4/1p3p2/3P4/N1pPP3/b1Bk1NK1/2nP3p/1B6/8 w - - 0 1)
Pechenkin, Petr Stepanovich
Sachove umeni (Ceskoslovensky sach), 1964
#4
10 + 7
| 6490 | yacpdb | 2021 |
SOLUTION
- SOUND
- Keys
- 1.Qh4!
- threat
- 2.Sxh3
- threat
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf5+
- 3...Ke3
- 4.Qf2#
- 3...Ke3
- 3.Kg5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Kh5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf3+
- 2...Bd7+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Kxe5
- 3.Qe7+
- 3...Kd4
- 4.Qe4#
- 3...Kd4
- 3.Qe7+
- threat
- 2.Sg2
- threat
- 3.Kf5#
- 2...Bd1+
- 3.Kf5+
- 3...Bg4+
- 4.Qxg4#
- 3...Bg4+
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf5+
- 2...Bd7+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Kxe5
- 3.Qe7+
- 3...Kd4
- 4.Qf6#
- 4.Qe3#
- 4.Qe4#
- 3...Kd4
- 3.Qe7+
- 2...hxg2
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf3+
- threat
- 2.Sxh3
- 1...Bd1+
- 2.Se2+
- 2...Ke3
- 3.Bc1+
- 3...Kxe2
- 4.d4#
- 3...Kxe2
- 3.Bc1+
- 2...Bxe2+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Ke3
- 2.Se2+
- 1...Bd7+
- 2.Se6+
- 2...Ke3
- 3.Qe1+
- 3...Se2
- 4.Bc1#
- 3...Se2
- 3.Qe1+
- 2...Kxe5
- 3.Bxc3+
- 3...Kxd6
- 4.Sxb7#
- 3...Kxd6
- 3.Bxc3+
- 2...Bxe6+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...fxe6
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf3+
- 2...Ke3
- 2.Se6+
- 1...f5+
- 2.Kf3
- threat
- 3.Se2+
- 3...Kxe5
- 4.Qe7#
- 3...Kxe5
- 3.Sh5+
- 3...Kxe5
- 4.Qf6#
- 4.Qf4#
- 3...f4
- 4.Qxf4#
- 3...Kxe5
- 3.Sg6+
- 3...f4
- 4.Qf2#
- 4.Qxf4#
- 3...f4
- 3.Se2+
- 2...Kxe5
- 3.Sg6+
- 3...Kxd6
- 4.Qe7#
- 3...Kxd6
- 3.Qe7+
- 3...Kd4
- 4.Se2#
- 4.Qf6#
- 4.Qe3#
- 4.Qg7#
- 3...Kd4
- 3.Sg6+
- threat
- 2.Kf3
- 1...Bc2
- 2.Se6+
- 2...Ke3
- 3.Qe1+
- 3...Se2
- 4.Bc1#
- 3...Se2
- 3.Qe1+
- 2...Kxe5
- 3.Bxc3+
- 3...Kxd6
- 4.Qd8#
- 3...Kxd6
- 3.Bxc3+
- 2...fxe6
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf3+
- 2...Ke3
- 2.Sxh3
- threat
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf5+
- 3...Ke3
- 4.Qf2#
- 3...Ke3
- 3.Kg5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Kh5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf3+
- 2...Kxe5
- 3.Bxc3+
- 3...Kxd6
- 4.Qd8#
- 3...Kxd6
- 3.Qe7+
- 3...Kd4
- 4.Qe4#
- 3...Kd4
- 3.Bxc3+
- 2...Bxd3
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Be4+
- 4.Qxe4#
- 3...Kxe5
- 3.Qf2+
- 3...Ke4
- 4.Qf4#
- 3...Kxe5
- 4.Qf4#
- 3...Ke4
- 3.Kf3+
- threat
- 2.Kf3
- threat
- 3.Sg6#
- 2...Bd1+
- 3.Se2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Se2+
- 2...Kxe5
- 3.Bxc3+
- 3...Kf5
- 4.Qf6#
- 4.Qg4#
- 4.Qh5#
- 3...Kxd6
- 4.Qd8#
- 3...Kf5
- 3.Bxc3+
- 2...f5
- 3.Se2+
- 3...Kxe5
- 4.Qe7#
- 3...Kxe5
- 3.Sh5+
- 3...Kxe5
- 4.Qf6#
- 4.Qf4#
- 3...f4
- 4.Qxf4#
- 3...Kxe5
- 3.Sg6+
- 3...f4
- 4.Qf2#
- 4.Qxf4#
- 3...f4
- 3.Se2+
- threat
- 2.Sg2
- threat
- 3.Kf5#
- 2...Bd1+
- 3.Kf5+
- 3...Bg4+
- 4.Qxg4#
- 3...Bg4+
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf5+
- 2...Kxe5
- 3.Bxc3+
- 3...Kxd6
- 4.Qd8#
- 3...Kxd6
- 3.Qe7+
- 3...Kd4
- 4.Qf6#
- 4.Qe3#
- 4.Qe4#
- 3...Kd4
- 3.Bxc3+
- 2...Bxd3
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Be4+
- 4.Qxe4#
- 3...Kxe5
- 3.Qf2+
- 3...Ke4
- 4.Qe3#
- 4.Qf4#
- 3...Kxe5
- 4.Qf4#
- 3...Ke4
- 3.Kf3+
- 2...hxg2
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf3+
- threat
- 2.Se6+
- 1...h2
- 2.Sg2
- threat
- 3.Kf5#
- 2...Bd1+
- 3.Kf5+
- 3...Bg4+
- 4.Qxg4#
- 3...Bg4+
- 3.Kf5+
- 2...Bd7+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Kxe5
- 3.Qe7+
- 3...Kd4
- 4.Qf6#
- 4.Qe3#
- 4.Qe4#
- 3...Kd4
- 3.Qe7+
- 2...h1Q
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 2...h1R
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- threat
- 2.Sg2
- 1...b6
- 2.Sxh3
- threat
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf5+
- 3...Ke3
- 4.Qf2#
- 3...Ke3
- 3.Kg5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Kh5+
- 3...Ke3
- 4.Qf2#
- 3...Kxe5
- 4.Qf4#
- 3...Ke3
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Qf2#
- threat
- 3.Kf3+
- 2...Bd1+
- 3.Kf4
- threat
- 4.Sc6#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Bd7+
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kf4
- 2...Kxe5
- 3.Qe7+
- 3...Kd4
- 4.Qe4#
- 3...Kd4
- 3.Qe7+
- threat
- 2.Sg2
- threat
- 3.Kf5#
- 2...Bd1+
- 3.Kg3+
- 3...Kxe5
- 4.Qf4#
- 3...Bg4
- 4.Sc6#
- 3...Kxe5
- 3.Kf5+
- 3...Bg4+
- 4.Qxg4#
- 3...Bg4+
- 3.Kg5+
- 3...Kxe5
- 4.Qf4#
- 3...Bg4
- 4.Sc6#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Sc6#
- 4.Qf2#
- threat
- 3.Kg3+
- 2...Bd7+
- 3.Kg3+
- 3...Kxe5
- 4.Qf4#
- 3...Bg4
- 4.Sc6#
- 3...Kxe5
- 3.Kg5+
- 3...Kxe5
- 4.Qf4#
- 3...Bg4
- 4.Sc6#
- 3...Kxe5
- 3.Kf4
- threat
- 4.Sb3#
- 4.Qf2#
- threat
- 3.Kg3+
- 2...Kxe5
- 3.Qe7+
- 3...Kd4
- 4.Qf6#
- 4.Qe3#
- 4.Qe4#
- 3...Kd4
- 3.Qe7+
- 2...hxg2
- 3.Kf3+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Qf2+
- 3...Kxe5
- 4.Qf4#
- 3...Kxe5
- 3.Kf3+
- threat
- 2.Sxh3
- 1...f6
- 2.Se6+
- 2...Ke3
- 3.Qe1+
- 3...Se2
- 4.Bc1#
- 3...Se2
- 3.Qe1+
- 2...Ke3
- 2.Se6+
- threat
- 1.Qh4!
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).