MESON Chess Problem Database

Problem Display
PID: 270580 (8/8/3B4/3b1Q2/3k4/8/N7/K7 w - - 0 1)

Westbury, Eric Ernest

Brighton Society, 1903

8/8/3B4/3b1Q2/3k4/8/N7/K7

#2

4 + 2

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bc4
      • 2.Bc5#
  • Tries
    • 1.Sb4?
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Kc4
        • 2.Qd3#
      • 1...Bc4
        • 2.Qe5#
      • 1...Be4
        • 2.Qc5#
      • 1...Ke3!
  • Keys
    • 1.Sc1!
      • threat
        • 2.Qd3#
      • 1...Kc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Qf4#
      • 1...Kc4
        • 2.Qd3#
      • 1...Bc4
        • 2.Qe5#
      • 1...Be4
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(b);SBLOCK::B(D)
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);S_FLIGHT::QAR1(C)
        • K(a);P-FLIGHT::QAB1(C)
        • B(b);SBLOCK::QAB1(C)
        • B(b);OGATE,SBLOCK::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(B);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);S_FLIGHT::QAR1(C)
      • K(a);N_GUARD,S_CUTB(b),S_FLIGHT::QAB1(C)
      • K(a);P-FLIGHT::QAB1(C)
      • B(b);SBLOCK::QAB1(C)
      • B(b);OGATE,SBLOCK::QAB1(C)
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