MESON Chess Problem Database

Problem Display
PID: 8068 (7q/1Pp5/2Bk1PN1/5KQP/2R2P2/8/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

7q/1Pp5/2Bk1PN1/5KQP/2R2P2/8/8/8

#2

9 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf6+
      • 2.Qxf6#
    • 1...Qc8+
      • 2.bxc8S#
  • Keys
    • 1.f7!
      • threat
        • 2.Qe7#
      • 1...Qe5+
        • 2.fxe5#
      • 1...Qf6+
        • 2.Qxf6#
      • 1...Qc8+
        • 2.bxc8S#
      • 1...Qxh5
        • 2.f8Q#
        • 2.f8B#
      • 1...Qd8
        • 2.Qxd8#
      • 1...Qe8
        • 2.fxe8S#
      • 1...Qf8
        • 2.Qf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK,OGATE,XP(G)::QAR2(D),XQ(c)
    • Q(c);CHECK,OGATE::PXQ(c)=S
  • Actual
    • P(G);
    • Threat
      • QAB1(D)
    • Vars
      • Q(c);CHECK,OGATE::P(B),XQ(c)
      • Q(c);CHECK,N_GUARD::QAR2(D),XQ(c)
      • Q(c);CHECK,OGATE::PXQ(c)=S
      • Q(c);N_GUARD,P_PINQ(D),XP(E)::P=Q
      • Q(c);N_GUARD::QAR2(D),XQ(c)
      • Q(c);OGATE::PXQ(c)=S
      • Q(c);N_GUARD,P_PINP(G)::QAR2(D)
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