MESON Chess Problem Database

Problem Display
PID: 1157 (1B3KbR/4N1P1/B2n4/5N2/R1p3kP/6P1/1p1p2P1/Q1q5 w - - 0 1)

Ingre, Bengt

Problem Observer, 1994

1B3KbR/4N1P1/B2n4/5N2/R1p3kP/6P1/1p1p2P1/Q1q5

#2

12 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Qxd1#
    • 1...Se4
      • 2.Se3#
    • 1...Sb5
      • 2.Se3#
    • 1...Sb7
      • 2.Se3#
    • 1...Sf7
      • 2.Se3#
    • 1...Sc8
      • 2.Se3#
    • 1...Se8
      • 2.Se3#
  • Keys
    • 1.Bxc4!
      • threat
        • 2.Be2#
      • 1...Qxc4
        • 2.Qd1#
      • 1...Bxc4
        • 2.g8Q#
        • 2.g8R#
      • 1...Sxc4
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(a);OGATE::QAB(A),XQ(a)
    • S(f);N_SPINP(d)::S(F)
    • S(f);::S(F)
  • Actual
    • B(G);XP(d)
    • Threat
      • R(D)+B(G),DCHECK
    • Vars
      • Q(a);OGATE,P_SPINQ(a),XB(G)::QAB(A)
      • B(g);OGATE,P_SPINB(g),XB(G)::P=Q
      • S(f);P_SPINS(f),XB(G)::S(F)
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).