MESON Chess Problem Database

Problem Display
PID: 265730 (r3k2r/p5pR/4PP2/K1p5/8/pQn5/8/7q w kq - 0 1)

Tkachenko, Sergiy Ivanovich

Parcerisa-80 (Problemas), 2022

r3k2r/p5pR/4PP2/K1p5/8/pQn5/8/7q

#2

5 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qg2
      • 2.Rxh8#
    • 1...Qf3
      • 2.Rxh8#
    • 1...Qe4
      • 2.Rxh8#
    • 1...Qd5
      • 2.Rxh8#
    • 1...Qc6
      • 2.Rxh8#
    • 1...Qb7
      • 2.Rxh8#
    • 1...Qa1
      • 2.Rxh8#
    • 1...Qb1
      • 2.Rxh8#
    • 1...Qc1
      • 2.Rxh8#
    • 1...Qd1
      • 2.Rxh8#
    • 1...Qe1
      • 2.Rxh8#
    • 1...Qf1
      • 2.Rxh8#
    • 1...Qg1
      • 2.Rxh8#
    • 1...Rb8
      • 2.Qxb8#
  • Keys
    • 1.Qb7!
      • threat
        • 2.Qe7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Qf7#
      • 1...0-0
        • 2.Qxg7#
      • 1...Qxb7
        • 2.Rxh8#
      • 1...Sd5
        • 2.Qxa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 13
  • Sets
    • Q(a);N_GUARD::R(E),XR(i)
    • R(g);N_GUARD::QAR(A),XR(g)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • K(h);N_GUARD,P-FLIGHT::QAR1(A)
      • K(h);0-0,OGATEB::QAR1(A),XP(f)
      • Q(a);N_GUARD,XQ(A)::R(E),XR(i)
      • S(c);S_CUTQ(a)::QAR(A),XR(g)
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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).