MESON Chess Problem Database

Problem Display
PID: 5027 (7R/7p/5P1k/4PKpP/8/8/8/8 w - g5 0 1)

Amelung, Friedrich Ludwig Balthasar

Duna Zeitung, 1897

7R/7p/5P1k/4PKpP/8/8/8/8

#2

5 + 3

887 Mate in Two Moves 1931
81 Chess 1946
274 diagrammes 1974
3310 2345 Chess Problems 1997
14503 Problemschach-Jahrbuch (1999) 2000
5454 Near Snap 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh5
      • 2.Rxh7#
  • Tries
    • 1.e6?
      • 1...Kxh5
        • 2.Rxh7#
      • 1...g4!
    • 1.f7?
      • 1...Kxh5
        • 2.Rxh7#
      • 1...Kg7
        • 2.f8Q#
      • 1...g4!
  • Keys
    • 1.hxg5 ep!
      • 1...Kh5
        • 2.Rxh7#

This anticipates 16898(1944)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT,XP(C)::R(E),XP(c)
  • Tries
    • Try
      • P(A);
      • Vars
        • K(b);P-FLIGHT,XP(C)::R(E),XP(c)
      • Refutation
        • P(a);
    • Try
      • P(D);
      • Vars
        • K(b);P-FLIGHT,XP(C)::R(E),XP(c)
        • K(b);N_SPINP(c),S_FLIGHT::P=Q
      • Refutation
        • P(a);
  • Actual
    • P(C);EP,XP(a)
    • Vars
      • K(b);P-FLIGHT::R(E),XP(c)
HTML5 logo

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).