MESON Chess Problem Database

Problem Display
PID: 60160 (1K2N1Q1/B2N4/3Rn3/pp1n2r1/2kp3r/2p4p/4P2b/1R1B4 w - - 0 1)

Fegan, Bertram George

3rd Highly Comm., Brisbane Courier, 1929

1K2N1Q1/B2N4/3Rn3/pp1n2r1/2kp3r/2p4p/4P2b/1R1B4

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rg3
      • 2.Se5#
    • 1...Bxd6+
      • 2.Sxd6#
    • 1...Sb4
      • 2.Bb3#
    • 1...Sdf4
      • 2.Rxd4#
    • 1...Sef4
      • 2.Rc6#
    • 1...Sc5
      • 2.Sb6#
    • 1...Sc7
      • 2.Rc6#
  • Keys
    • 1.Bc2!
      • threat
        • 2.Bd3#
      • 1...Bxd6+
        • 2.Sxd6#
      • 1...Rg3
        • 2.Se5#
      • 1...Sb4
        • 2.Bb3#
      • 1...Sdf4
        • 2.Rxd4#
      • 1...Sef4
        • 2.Rc6#
      • 1...Sc5
        • 2.Sb6#
      • 1...d3
        • 2.Bxd3#
        • 2.exd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(j);N_GUARD,N_PINR(D),S_CUTB(a)::S(F)
    • B(a);CHECK,XR(D)::S(H),XB(a)
    • S(i);P_SPINS(k),SBLOCK::B(B)
    • S(i);N_PINR(D),P_SPINS(k)::R1(D),XP(e)
    • S(k);N_PINR(D),P_SPINS(i)::R(D)
    • S(k);P_SPINS(i),SBLOCK::S(F)
  • Actual
    • B(B);
    • Threat
      • B(B)
    • Vars
      • B(a);CHECK,XR(D)::S(H),XB(a)
      • R(j);N_GUARD,N_PINR(D),S_CUTB(a)::S(F)
      • S(i);P_SPINS(k),SBLOCK::B(B)
      • S(i);N_PINR(D),P_SPINS(k)::R1(D),XP(e)
      • S(k);N_PINR(D),P_SPINS(i)::R(D)
      • S(k);P_SPINS(i),SBLOCK::S(F)
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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).