MESON Chess Problem Database

Problem Display
PID: 144365 (8/K3Q3/8/1kB5/8/8/2P5/8 w - - 0 1)

Williams, Philip Hamilton

British Chess Magazine, 1898

8/K3Q3/8/1kB5/8/8/2P5/8

#2

4 + 1

5454 Near Snap 2023

SOLUTION

  • SOUND
  • Tries
    • 1.Bb4?
      • 1...Kc4
        • 2.Qc5#
      • 1...Kc6
        • 2.Qb7#
      • 1...Ka4!
    • 1.Qd6?
      • 1...Ka4
        • 2.Qa6#
      • 1...Ka5
        • 2.Qa6#
      • 1...Kc4!
    • 1.Qe4?
      • 1...Ka5
        • 2.Qb4#
      • 1...Kxc5!
    • 1.Qe6?
      • 1...Ka4
        • 2.Qa6#
      • 1...Ka5
        • 2.Qa6#
      • 1...Kxc5!
  • Keys
    • 1.Ba3!
      • 1...Ka4
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka5
        • 2.Qb4#
      • 1...Kc6
        • 2.Qb7#

This anticipates 37981(1923), 240460(1995)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(B);
      • Vars
        • K(a);S_FLIGHT::QAR1(D)
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT::QAB1(D)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAR2(D)
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XB(B)
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::QAR1(D)
      • K(a);P-FLIGHT::QAB1(D)
      • K(a);S_FLIGHT::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).