MESON Chess Problem Database

Problem Display
PID: 175504 (6K1/8/P3N3/3k4/2N4Q/P7/4P3/8 w - - 0 1)

Warn, JR

Philadelphia Times, 1899

6K1/8/P3N3/3k4/2N4Q/P7/4P3/8

#2

7 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qh3?
      • 1...Kxc4
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
        • 2.Qf3#
      • 1...Kc6!
    • 1.Qf4?
      • 1...Kxe6
        • 2.Qf7#
      • 1...Kc6!
  • Keys
    • 1.Qh7!
      • 1...Kxc4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qb7#
      • 1...Kxe6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT,XS(C)::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT,XS(C)::QAB1(D)
      • K(a);S_FLIGHT::QAB1(D)
      • K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(D)
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).