MESON Chess Problem Database

Problem Display
PID: 44705 (bBR5/3P1Q2/3rBn2/2p1k1Np/3N3P/4b3/2P1R3/3K4 w - - 0 1)

Mani, Mrs S

The Problemist, 1956

bBR5/3P1Q2/3rBn2/2p1k1Np/3N3P/4b3/2P1R3/3K4

#2

11 + 7

1111 Busmen's Chess Review 1957
136 Problem Observer 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd4
      • 2.Qxf6#
    • 1...Kf4
      • 2.Bxd6#
    • 1...Se4
      • 2.Sf3#
    • 1...Sd5
      • 2.Sdf3#
  • Tries
    • 1.Bxd6+?
      • 1...Kxd4
        • 2.Qxf6#
      • 1...Kxd6!
  • Keys
    • 1.Rf8!
      • threat
        • 2.Qxf6#
      • 1...Kxd4
        • 2.Qxf6#
      • 1...Kf4
        • 2.Bxd6#
      • 1...Sxd7
        • 2.Qf4#
      • 1...Se4
        • 2.Sf3#
      • 1...Sg4
        • 2.Qf4#
      • 1...Sd5
        • 2.Sdf3#
      • 1...Sh7
        • 2.Qf4#
      • 1...Se8
        • 2.Qf4#
      • 1...Sg8
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(a),N_SPINR(e),S_FLIGHT,XS(D)::QAB(I),XS(f)
    • K(c);N_SPINB(a),P_SPINS(f),S_FLIGHT::B(J),XR(e)
    • S(f);N_SPINB(a),SBLOCK,S_CUTB(g)::S(F)
    • S(f);N_PINS(D)::S(D)
  • Tries
    • Try
      • B(J);CHECK,N_SPINS(D),XR(e)
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT,XS(D)::QAB(I),XS(f)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT,XB(J)
  • Actual
    • R(K);
    • Threat
      • QAB1(I),XS(f)
    • Vars
      • K(c);N_SPINB(a),N_SPINR(e),S_FLIGHT,XS(D)::QAB(I),XS(f)
      • K(c);N_SPINB(a),P_SPINS(f),S_FLIGHT::B(J),XR(e)
      • S(f);OGATE,XP(H)::QAB1(I)
      • S(f);N_SPINB(a),SBLOCK,S_CUTB(g)::S(F)
      • S(f);OGATE::QAB1(I)
      • S(f);N_PINS(D)::S(D)
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