MESON Chess Problem Database

Problem Display
PID: 165487 (8/4RQ2/8/8/2N5/4nK2/8/4k3 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Abdullayev, Suleyman-55 JT, 2017

8/4RQ2/8/8/2N5/4nK2/8/4k3

#2

4 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qh5?
      • threat
        • 2.Qh1#
      • 1...Kf1
        • 2.Qh1#
      • 1...Kd1!
    • 1.Qg6?
      • threat
        • 2.Qb1#
        • 2.Qg1#
      • 1...Kd1
        • 2.Qb1#
      • 1...Kf1!
    • 1.Qf5?
      • threat
        • 2.Qb1#
      • 1...Kd1
        • 2.Qb1#
      • 1...Kf1!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qb1#
        • 2.Qh1#
      • 1...Kd1
        • 2.Qb1#
      • 1...Kf1
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • K(a);N_SPINS(b),P-FLIGHT::QAR2(D)
      • Refutation
        • K(a);N_SPINS(b),P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);N_SPINS(b),P-FLIGHT::QAR2(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).