MESON Chess Problem Database

Problem Display
PID: 270773 (8/1qb5/1p4Nn/1P3P2/4k3/8/5Q2/1K4B1 w - - 0 1)

Westbury, Eric Ernest

Source?, 1900

8/1qb5/1p4Nn/1P3P2/4k3/8/5Q2/1K4B1

#2

6 + 5

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qc2#
    • 1...Kd5
      • 2.Qd4#
  • Tries
    • 1.Qe3+?
      • 1...Kd5
        • 2.Qd4#
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Qc2+?
      • 1...Kd5
        • 2.Qd3#
      • 1...Kf3!
    • 1.Qe2+?
      • 1...Kd5
        • 2.Qd3#
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Qg2+?
      • 1...Kd3
        • 2.Qc2#
      • 1...Kxf5!
  • Keys
    • 1.Sh4!
      • threat
        • 2.Qd4#
      • 1...Kd3
        • 2.Qc2#
      • 1...Kd5
        • 2.Qd4#
      • 1...Ke5
        • 2.Qd4#
      • 1...Sxf5
        • 2.Qxf5#
      • 1...Qd5
        • 2.Qe3#
      • 1...Be5
        • 2.Qf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::QAB1(C)
    • K(a);N_GUARD,S_FLIGHT::QAR1(C)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAR2(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(E)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT,XP(E)
  • Actual
    • S(F);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);N_GUARD,S_FLIGHT::QAB1(C)
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);P-FLIGHT::QAB1(C)
      • S(c);OGATE,XP(E)::QAB1(C),XS(c)
      • Q(d);SBLOCK::QAR1(C)
      • B(e);SBLOCK::QAB1(C)
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