MESON Chess Problem Database

Problem Display
PID: 273072 (2Q5/8/1q6/3k1B2/1P3K2/8/8/8 w - - 0 1)

Astafyeva, Aliona

Mosiashvili-75 JT (Kudesnik), 2023

2Q5/8/1q6/3k1B2/1P3K2/8/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qd7#
    • 1...Qc5
      • 2.Qxc5#
    • 1...Qd8
      • 2.Qc5#
    • 1...Qa6
      • 2.Qc5#
    • 1...Qe6
      • 2.Qc5#
    • 1...Qf6
      • 2.Qc5#
    • 1...Qg6
      • 2.Qc5#
    • 1...Qb7
      • 2.Qc5#
  • Keys
    • 1.Be6+!
      • 1...Kd4
        • 2.Qc4#
      • 1...Kd6
        • 2.Qd7#
      • 1...Qxe6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • K(a);N_GUARD,P-FLIGHT,S_CUTQ(b)::QAR1(D)
    • Q(b);N_GUARD::QAR1(D),XQ(b)
    • Q(b);N_GUARD::QAR1(D)
    • Q(b);N_GUARD,P_PINB(C)::QAR1(D)
  • Actual
    • B(C);CHECK
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAR1(D)
      • K(a);P-FLIGHT::QAR1(D)
      • Q(b);SBLOCK,XB(C)::QAR1(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).