MESON Chess Problem Database

Problem Display
PID: 157439 (7K/3bN3/4p3/4kp2/1P3R2/3P4/4P3/2Q5 w - - 0 1)

Butler, Henry William

Brighton Herald, 0000

7K/3bN3/4p3/4kp2/1P3R2/3P4/4P3/2Q5

#2

7 + 4

15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qc5#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Qc7#
      • 1...Kd6
        • 2.Qc5#
      • 1...Bc6!
    • 1.Sg6+?
      • 1...Kd5
        • 2.Qc5#
      • 1...Kd6
        • 2.Rd4#
        • 2.Qc5#
      • 1...Kf6!
    • 1.Rxf5+?
      • 1...Kd4
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...exf5!
    • 1.Qe3+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6!
    • 1.Qc3+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Kxf4!
    • 1.Qc4?
      • threat
        • 2.Qd4#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6!
    • 1.d4+?
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Qd4#
      • 1...Kxf4
        • 2.Sg6#
      • 1...Kd6
        • 2.Qc5#
      • 1...Kf6
        • 2.Qg7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(A)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • QAB(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • B(d);
    • Try
      • S(F);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • R(E);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • P(c);XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(a);S_FLIGHT,XR(E)::S(F)
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P_SPINP(b),S_FLIGHT::QAB1(A)
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