MESON Chess Problem Database

Problem Display
PID: 64068 (8/2pB4/4P1pr/4k1p1/2K3P1/B1N1P1N1/6pQ/7r w - - 0 1)

Roels, C

Chess, 1946

8/2pB4/4P1pr/4k1p1/2K3P1/B1N1P1N1/6pQ/7r

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sh5#
    • 1...Rb1
      • 2.Sh5#
    • 1...Rc1
      • 2.Sh5#
    • 1...Rd1
      • 2.Sh5#
    • 1...Re1
      • 2.Sh5#
    • 1...Rg1
      • 2.Sh5#
  • Keys
    • 1.Bb2!
      • threat
        • 2.Sce4#
        • 2.Sb5#
      • 1...Kd6
        • 2.Sf5#
      • 1...Kf6
        • 2.Sd5#
      • 1...Rb1
        • 2.Sh5#
      • 1...Rc1
        • 2.Sh5#
      • 1...Rd1
        • 2.Sh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::QAB(A)+S(E)
    • R(a);N_GUARD,P_PINS(C)::QAB(A)+S(E)
  • Actual
    • B(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(c);S_FLIGHT::QAB(A)+S(E),DCHECK
      • K(c);S_FLIGHT::B(B)+S(C),DCHECK
      • R(a);N_GUARD::QAB(A)+S(E)
      • R(a);N_GUARD,P_PINS(C)::QAB(A)+S(E)
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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).