MESON Chess Problem Database

Problem Display
PID: 106914 (1Bb1nrn1/2pp1RNp/p2k1ppP/3P4/BbK2P2/N2Q4/8/8 w - - 0 1)

Ribeiro, Herculano

Caissa, 1980

1Bb1nrn1/2pp1RNp/p2k1ppP/3P4/BbK2P2/N2Q4/8/8

#2

10 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxa3
      • 2.Qxa3#
    • 1...Bb7
      • 2.Rxd7#
    • 1...a5
      • 2.Sb5#
    • 1...g5
      • 2.Sf5#
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qb6#
      • 1...Rxf7
        • 2.Sxe8#
      • 1...Ba5
        • 2.Qc5#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bb7
        • 2.Rxd7#
      • 1...Se7
        • 2.Qxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(a);OGATE,XS(A)::QAB(B),XB(a)
    • B(i);N_GUARD::R1(H),XP(g)
    • P(b);N_GUARD::S(A)
    • P(e);N_GUARD::S(I)
  • Actual
    • Q(B);
    • Threat
      • QAR2(B)
    • Vars
      • R(k);N_GUARD,XR(H)::S(I),XS(j)
      • B(a);N_GUARD::QAB1(B)
      • B(a);N_GUARD::QAB1(B),XB(a)
      • B(i);N_GUARD::R1(H),XP(g)
      • S(l);N_GUARD::QAB1(B),XS(l)
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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).