MESON Chess Problem Database

Problem Display
PID: 140869 (7q/6kp/7R/5QB1/8/8/8/5K2 w - - 0 1)

Subotic, Miroslav

Liga Problemista, 1999/1

7q/6kp/7R/5QB1/8/8/8/5K2

#2

4 + 3

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Qg8
      • 2.Qf6#
  • Tries
    • 1.Rxh7+?
      • 1...Kg8
        • 2.Qf7#
      • 1...Qxh7!
  • Keys
    • 1.Be7!
      • 1...Kxh6
        • 2.Qg5#
      • 1...Kg8
        • 2.Qf8#
      • 1...Qa8
        • 2.Qxh7#
      • 1...Qb8
        • 2.Qxh7#
      • 1...Qc8
        • 2.Qxh7#
      • 1...Qd8
        • 2.Qxh7#
      • 1...Qe8
        • 2.Qxh7#
      • 1...Qf8
        • 2.Qxf8#
      • 1...Qg8
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • Q(c);SBLOCK::QAB1(B)
  • Tries
    • Try
      • R(D);CHECK,XP(b)
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • Q(c);XR(D)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT,XR(D)::QAB1(B)
      • K(a);P-FLIGHT::QAR1(B)
      • Q(c);N_GUARD::QAR1(B),XP(b)
      • Q(c);N_GUARD,P_PINQ(B)::QAB1(B),XQ(c)
      • Q(c);SBLOCK::QAB1(B)
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).