MESON Chess Problem Database

Problem Display
PID: 258141 (7K/8/6pk/3R3p/4PpR1/6P1/1Pp5/1Q6 w - - 0 1)

Abdullayev, Elmar

Astafyeva-30 JT (Kudesnik), 2021

7K/8/6pk/3R3p/4PpR1/6P1/1Pp5/1Q6

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...hxg4
      • 2.Qh1#
    • 1...h4
      • 2.Rxh4#
    • 1...g5
      • 2.Rd6#
  • Tries
    • 1.Rd7?
      • threat
        • 2.Rh7#
      • 1...g5
        • 2.Rd6#
      • 1...hxg4!
  • Keys
    • 1.Qc1!
      • 1...hxg4
        • 2.Qh1#
      • 1...g5
        • 2.Rd6#
      • 1...h4
        • 2.Rxh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(c);OGATEB,XR(E)::QAR(A)
    • P(c);OGATEB::R(E),XP(c)
    • P(d);OGATEB::R(F)
  • Tries
    • Try
      • R(F);
      • Threat
        • R1(F)
      • Vars
        • P(d);OGATEB::R(F)
      • Refutation
        • P(c);XR(E)
  • Actual
    • Q(A);P_PINP(b)
    • Vars
      • P(c);OGATEB,XR(E)::QAR(A)
      • P(d);N_SPINP(b),OGATEB::R(F)
      • P(c);OGATEB::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).