MESON Chess Problem Database

Problem Display
PID: 18180 (2K5/4p2r/4n1Pk/4QP2/4N1P1/8/8/8 w - - 0 1)

de Brampton, B

Time & Tide, 1953

2K5/4p2r/4n1Pk/4QP2/4N1P1/8/8/8

#2

6 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Rg7
      • 2.Qh2#
    • 1...Rh8+
      • 2.Qxh8#
    • 1...Sg7
      • 2.Qf4#
  • Keys
    • 1.g7!
      • threat
        • 2.g8S#
      • 1...Rh8+
        • 2.gxh8Q#
        • 2.gxh8R#
      • 1...Rxg7
        • 2.Qh2#
      • 1...Sxg7
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • R(d);SBLOCK::QAR(C)
    • R(d);CHECK,OGATEB::QAR2(C),XR(d)
    • S(a);N_GUARD,SBLOCK::QAB(C)
  • Actual
    • P(E);
    • Threat
      • P=S
    • Vars
      • R(d);CHECK,OGATE::PXR(d)=Q
      • R(d);SBLOCK,XP(E)::QAR(C)
      • S(a);N_GUARD,SBLOCK,XP(E)::QAB(C)
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