MESON Chess Problem Database

Problem Display
PID: 232210 (8/5R2/8/6pQ/4kN2/8/6K1/2B5 w - - 0 1)

Chayka, Arina

Kudesnik, 2015

8/5R2/8/6pQ/4kN2/8/6K1/2B5

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...g4
      • 2.Qd5#
  • Tries
    • 1.Qd1?
      • threat
        • 2.Qd5#
      • 1...Ke5
        • 2.Qd5#
      • 1...gxf4!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qd5#
      • 1...Kd4!
    • 1.Qg6+?
      • 1...Ke5
        • 2.Bb2#
      • 1...Kd4!
  • Keys
    • 1.Bb2!
      • threat
        • 2.Qe2#
        • 2.Qf3#
      • 1...Ke3
        • 2.Qe2#
      • 1...gxf4
        • 2.Qf3#
      • 1...g4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);OGATE::QAB1(D)
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • P(b);XS(C)
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);P-FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAR1(D)
      • P(b);XS(C)::QAB1(D)
      • P(b);OGATE::QAR1(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).