MESON Chess Problem Database

Problem Display
PID: 51488 (8/6B1/8/8/3PB1p1/1p2k1N1/pP5P/Qn2K2R w K - 0 1)

Russ, Colin Albert Harry

The Guardian, 1962

8/6B1/8/8/3PB1p1/1p2k1N1/pP5P/Qn2K2R

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Bh6#
    • 1...Sa3
      • 2.Qc1#
    • 1...Sc3
      • 2.Qc1#
  • Tries
    • 1.Be5?
      • 1...Sa3
        • 2.Qc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sd2!
    • 1.Rf1?
      • 1...Sa3
        • 2.Qc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sd2!
    • 1.Rg1?
      • 1...Kf4
        • 2.Bh6#
      • 1...Sa3
        • 2.Qc1#
      • 1...Sc3
        • 2.Qc1#
      • 1...Sd2!
  • Keys
    • 1.0-0!
      • 1...Kd2
        • 2.Bh6#
      • 1...Sd2
        • 2.Qe1#
      • 1...Sa3
        • 2.Qc1#
        • 2.Qe1#
      • 1...Sc3
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(d);S_FLIGHT::B(I)
    • S(a);OGATE::QAB(A)
  • Tries
    • Try
      • B(I);
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);
    • Try
      • R(C);
      • Vars
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);
    • Try
      • R(C);
      • Vars
        • K(d);S_FLIGHT::B(I)
        • S(a);OGATE::QAB(A)
      • Refutation
        • S(a);
  • Actual
    • K(B);0-0
    • Vars
      • K(d);S_FLIGHT::B(I)
      • S(a);OGATE::QAR2(A)
      • S(a);OGATE::QAB(A)
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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).