MESON Chess Problem Database

Problem Display
PID: 63673 (K7/2B5/k1p5/1bp5/P1r5/8/8/R6Q w - - 0 1)

Rudolph, William E

Source?, 0000

K7/2B5/k1p5/1bp5/P1r5/8/8/R6Q

#2

5 + 5

16 Chess Amateur (The) 1909

SOLUTION

  • SOUND
  • Sets
    • 1...Bxa4
      • 2.Qxc6#
  • Keys
    • 1.Qf1!
      • 1...Rxa4
        • 2.Rxa4#
      • 1...Bxa4
        • 2.Qxc4#
      • 1...Rc1
        • 2.axb5#
      • 1...Rc2
        • 2.axb5#
      • 1...Rc3
        • 2.axb5#
      • 1...Rb4
        • 2.axb5#
      • 1...Rd4
        • 2.axb5#
      • 1...Re4
        • 2.axb5#
      • 1...Rf4
        • 2.axb5#
      • 1...Rg4
        • 2.axb5#
      • 1...Rh4
        • 2.axb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • B(b);N_GUARD,P_SPINB(b),XP(C)::QAR2(B),XP(e)
  • Actual
    • Q(B);
    • Vars
      • R(a);OGATE,P_SPINB(b),P_SPINR(a),XP(C)::R(A),XR(a)
      • B(b);OGATEB,P_SPINB(b),P_SPINR(a),XP(C)::QAB(B),XR(a)
      • R(a);P_SPINB(b)::R(A)+P(C)DCHECK,XB(b)
      • R(a);P_SPINB(b),SBLOCK::R(A)+P(C)DCHECK,XB(b)
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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).