MESON Chess Problem Database

Problem Display
PID: 266796 (R7/8/NkB5/p4p2/P2P4/pb6/rb4QK/qRn3B1 w - - 0 1)

Kipping, Cyril Stanley

The Problemist, 1954

R7/8/NkB5/p4p2/P2P4/pb6/rb4QK/qRn3B1

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.d5#
    • 1...Bc2
      • 2.d5#
    • 1...Bxa4
      • 2.d5#
    • 1...Bc4
      • 2.d5#
    • 1...Be6
      • 2.d5#
    • 1...Bf7
      • 2.d5#
    • 1...Bg8
      • 2.d5#
  • Keys
    • 1.Qg6!
      • threat
        • 2.Bd5#
      • 1...Bc3+
        • 2.Bg2#
      • 1...Bxd4+
        • 2.Bg2#
      • 1...Bxa4
        • 2.d5#
      • 1...Be6
        • 2.d5#
      • 1...Bd5
        • 2.Bxd5#
      • 1...Bf7
        • 2.d5#
      • 1...Bg8
        • 2.d5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • B(f);P_SPINB(d)::B(B)+P(F)
    • B(f);P_SPINB(d),XP(E)::B(B)+P(F)
  • Actual
    • Q(C);
    • Threat
      • QAR(C)+B(H)
    • Vars
      • B(d);CHECK,P_SPINB(f)::QAR(C)+B(H)
      • B(d);CHECK,P_SPINB(f),XP(F)::QAR(C)+B(H)
      • B(f);P_SPINB(d),XP(E)::B(B)+P(F)
      • B(f);P_SPINB(d)::B(B)+P(F)
      • B(f);P_SPINB(d)::QAR(C)+B(H),XB(f)
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