MESON Chess Problem Database

Problem Display
PID: 72372 (1b2B3/2Q2R2/Nr2kN2/2B5/2n1nK2/8/8/8 w - - 0 1)

Ghirelli, Bruno

Chess, 1953

1b2B3/2Q2R2/Nr2kN2/2B5/2n1nK2/8/8/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qe7#
    • 1...Ba7
      • 2.Qd7#
      • 2.Qe7#
      • 2.Qc8#
    • 1...Bxc7+
      • 2.Sxc7#
    • 1...Se5
      • 2.Qe7#
    • 1...Scd6
      • 2.Qd7#
      • 2.Qe7#
    • 1...Sxc5
      • 2.Sxc5#
    • 1...Sed6
      • 2.Qd7#
      • 2.Qe7#
  • Keys
    • 1.Rf8!
      • threat
        • 2.Bd7#
      • 1...Bxc7+
        • 2.Sxc7#
      • 1...Sxc5
        • 2.Sxc5#
      • 1...Sxf6
        • 2.Bf7#
      • 1...Rd6
        • 2.Qf7#
      • 1...Se5
        • 2.Qe7#
      • 1...Scd6
        • 2.Qd7#
      • 1...Sed6
        • 2.Qd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(c);N_PINQ(E)::QAR1(E)
    • B(e);CHECK,XQ(E)::S(C),XB(e)
    • S(a);N_PINQ(E)::QAR1(E)
    • S(b);XB(B)::S(C),XS(b)
  • Actual
    • R(F);
    • Threat
      • B(G)
    • Vars
      • B(e);CHECK,XQ(E)::S(C),XB(e)
      • S(b);XB(B)::S(C),XS(b)
      • S(b);SBLOCK,XS(D)::B(G)
      • R(c);N_PINQ(E)::QAB1(E)
      • S(a);N_PINQ(E)::QAR1(E)
      • S(a);N_PINQ(E)::QAB1(E)
      • S(b);N_PINQ(E)::QAB1(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).