MESON Chess Problem Database

Problem Display
PID: 63197 (4BK2/r1p5/3p2N1/q2R1N1k/b4P2/7P/8/8 w - - 0 1)

Gunn, Robert Ivan

Chess, 1945

4BK2/r1p5/3p2N1/q2R1N1k/b4P2/7P/8/8

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Sgh4#
      • 2.Se5#
      • 2.Sge7#
      • 2.Sh8#
    • 1...Bc2
      • 2.Sgh4#
      • 2.Se5#
      • 2.Sge7#
      • 2.Sh8#
    • 1...Bb3
      • 2.Sgh4#
      • 2.Se5#
      • 2.Sge7#
      • 2.Sh8#
    • 1...c6
      • 2.Sge7#
  • Keys
    • 1.Kg7!
      • threat
        • 2.Sg3#
      • 1...Qc3+
        • 2.Sd4#
      • 1...c5+
        • 2.Sfe7#
      • 1...c6+
        • 2.Sge7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(f);S_CUTB(a)::B(F)+S(E)
  • Actual
    • K(G);S_FLIGHT
    • Threat
      • R(C)+S(D),DCHECK
    • Vars
      • Q(b);CHECK,N_GUARD::R(C)+S(D)
      • P(f);CHECK,S_CUTQ(b)::R(C)+S(D)
      • P(f);CHECK,S_CUTB(a)::B(F)+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).