MESON Chess Problem Database

Problem Display
PID: 161606 (8/8/8/2kB4/R1p3Q1/8/4K3/8 w - - 0 1)

Akulin, J

Kudesnik, 2006

8/8/8/2kB4/R1p3Q1/8/4K3/8

#2

4 + 2

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Ra6?
      • threat
        • 2.Qxc4#
      • 1...Kb4
        • 2.Qxc4#
      • 1...Kb5
        • 2.Qxc4#
      • 1...c3
        • 2.Qc4#
      • 1...Kxd5!
    • 1.Qd7?
      • 1...Kb6
        • 2.Qc6#
      • 1...c3
        • 2.Qc6#
      • 1...Kd4!
    • 1.Qxc4+?
      • 1...Kb6
        • 2.Ra6#
        • 2.Qc6#
      • 1...Kd6!
  • Keys
    • 1.Qe6!
      • 1...Kd4
        • 2.Rxc4#
      • 1...Kb5
        • 2.Qc6#
      • 1...c3
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);
      • Threat
        • QAR1(C),XP(a)
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::QAR1(C),XP(a)
        • K(b);P-FLIGHT::QAB1(C),XP(a)
        • P(a);::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • Q(C);
      • Vars
        • K(b);S_FLIGHT::QAR1(C)
        • P(a);::QAR1(C)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(C);CHECK,XP(a)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::R1(B),XP(a)
      • K(b);P-FLIGHT::QAB1(C)
      • P(a);::QAR1(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).