MESON Chess Problem Database

Problem Display
PID: 201799 (1Q6/8/4N2R/3k4/3P1K2/3N4/8/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2018

1Q6/8/4N2R/3k4/3P1K2/3N4/8/8

#2

6 + 1

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc6!
    • 1.Rh7?
      • 1...Kc6
        • 2.Sb4#
      • 1...Kxe6
        • 2.Qe5#
      • 1...Kc4!
    • 1.Qb7+?
      • 1...Kd6
        • 2.Sec5#
        • 2.Sg5#
        • 2.Sg7#
        • 2.Sd8#
        • 2.Sf8#
      • 1...Kc4!
  • Keys
    • 1.Sdc5!
      • 1...Kc4
        • 2.Qb3#
      • 1...Kc6
        • 2.Sc7#

This is a version of 201794

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(E);
      • Vars
        • K(a);S_FLIGHT::S(A)
        • K(a);S_FLIGHT,XS(D)::QAR1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);S_FLIGHT::R(E)+S(D)
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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).