MESON Chess Problem Database

Problem Display
PID: 67144 (K2R4/4N2B/8/8/2p2p2/1n2kr2/Q7/8 w - - 0 1)

Bernard, Edmond

diagrammes, 1976

K2R4/4N2B/8/8/2p2p2/1n2kr2/Q7/8

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qd2#
    • 1...Sc1
      • 2.Qd2#
    • 1...Sd2
      • 2.Qxd2#
    • 1...Sd4
      • 2.Sd5#
    • 1...Sa5
      • 2.Qd2#
    • 1...Sc5
      • 2.Qd2#
    • 1...c3
      • 2.Rd3#
  • Keys
    • 1.Qg2!
      • 1...Rf2
        • 2.Qe4#
      • 1...Rf1
        • 2.Sf5#
      • 1...Rg3
        • 2.Sf5#
      • 1...Rh3
        • 2.Sf5#
      • 1...Sa1
        • 2.Qd2#
      • 1...Sc1
        • 2.Qd2#
      • 1...Sd2
        • 2.Qxd2#
      • 1...Sd4
        • 2.Sd5#
      • 1...Sa5
        • 2.Qd2#
      • 1...Sc5
        • 2.Qd2#
      • 1...c3
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(A)
    • S(a);N_GUARD::QAB1(A),XS(a)
    • S(a);SBLOCK::S(B)
    • P(d);N_GUARD::R1(E)
  • Actual
    • Q(A);
    • Vars
      • R(c);OGATE,SBLOCK::QAR1(A)
      • R(c);::S(B)
      • S(a);N_GUARD::QAB1(A)
      • S(a);N_GUARD::QAB1(A),XS(a)
      • S(a);SBLOCK::S(B)
      • P(d);N_GUARD::R1(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).