MESON Chess Problem Database

Problem Display
PID: 154454 (8/8/8/8/1Q6/1p5K/R3Pp2/5k2 w - - 0 1)

Hage, Poul

Aarsskrift for DSK, 1935

8/8/8/8/1Q6/1p5K/R3Pp2/5k2

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qd2?
      • threat
        • 2.Ra1#
        • 2.Qc1#
        • 2.Qd1#
      • 1...bxa2
        • 2.Qd1#
      • 1...b2
        • 2.Qd1#
      • 1...Kg1!
    • 1.Qxb3?
      • threat
        • 2.Qd1#
        • 2.Qb1#
      • 1...Ke1
        • 2.Qb1#
      • 1...Kg1!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qa1#
        • 2.Qd1#
      • 1...Ke1
        • 2.Qa1#
      • 1...Kg1
        • 2.Ra1#
      • 1...bxa2
        • 2.Qd1#
      • 1...b2
        • 2.Qd1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(3)
      • Vars
        • P(c);XR(A)::QAR2(D)
        • P(c);::QAR2(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);XP(c)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR(D)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAR(D)
      • K(a);P-FLIGHT,P_SPINP(b)::R(A)
      • P(c);XR(A)::QAR2(D)
      • P(c);::QAR2(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).