MESON Chess Problem Database

Problem Display
PID: 228824 (8/4p3/1Q2p3/2r1p3/3kP1NR/8/3K2P1/8 w - - 0 1)

Holt, Locke

Preston Guardian, 1881

(First published on Wed Apr 20 1881)

8/4p3/1Q2p3/2r1p3/3kP1NR/8/3K2P1/8

#2

6 + 5

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Se3#
  • Tries
    • 1.Qxc5+?
      • 1...Kxe4
        • 2.Se3#
        • 2.Sh6#
        • 2.Qxe5#
      • 1...Kxc5!
    • 1.Qb2+?
      • 1...Kc4
        • 2.Se3#
      • 1...Kxe4
        • 2.Se3#
      • 1...Rc3!
  • Keys
    • 1.Qa7!
      • 1...Kc4
        • 2.Qa4#
      • 1...Kxe4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINR(b),P-FLIGHT,XP(C)::R(E)+S(D)
  • Tries
    • Try
      • Q(F);CHECK,XR(b)
      • Refutation
        • K(a);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK,N_PINR(b)
      • Vars
        • K(a);P-FLIGHT::S(D)
        • K(a);P-FLIGHT,XP(C)::R(E)+S(D)
      • Refutation
        • R(b);P_SPINR(b)
  • Actual
    • Q(F);
    • Vars
      • K(a);N_SPINR(b),P-FLIGHT::QAR2(F)
      • K(a);N_SPINR(b),P-FLIGHT,XP(C)::R(E)+S(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).