MESON Chess Problem Database

Problem Display
PID: 8023 (4NK2/5b2/4Bp2/Bpk1b2R/1N1pP1Q1/8/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

4NK2/5b2/4Bp2/Bpk1b2R/1N1pP1Q1/8/8/8

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Qg1#
  • Tries
    • 1.Kxf7?
      • 1...d3
        • 2.Qg1#
      • 1...f5!
    • 1.Bxf7?
      • threat
        • 2.Qc8#
      • 1...d3
        • 2.Qg1#
      • 1...f5!
  • Keys
    • 1.Qg7!
      • 1...Bxh5
        • 2.Qa7#
      • 1...Bxe6
        • 2.Qc7#
      • 1...Bxe8
        • 2.Qe7#
      • 1...d3
        • 2.Qg1#
      • 1...f5
        • 2.Qxe5#
      • 1...Bg6
        • 2.Qa7#
        • 2.Qc7#
        • 2.Qe7#
      • 1...Bg8
        • 2.Qa7#
        • 2.Qc7#
        • 2.Qe7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(a);OGATEB::QAB(C)
  • Tries
    • Try
      • K(H);P-FLIGHT,XB(f)
      • Vars
        • P(a);OGATEB::QAB(C)
      • Refutation
        • P(e);N_SPINB(d)
    • Try
      • B(F);XB(f)
      • Threat
        • QAR(C)
      • Vars
        • P(a);OGATEB::QAB(C)
      • Refutation
        • P(e);N_SPINB(d)
  • Actual
    • Q(C);
    • Vars
      • B(f);N_SPINB(d),OGATE,XR(E)::QAB(C)
      • B(f);OGATE,XB(F)::QAR2(C)
      • B(f);OGATE,XS(G)::QAB(C)
      • P(a);OGATEB::QAB(C)
      • P(e);N_SPINB(d),OGATE::QAR2(C),XB(d)
HTML5 logo

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).