MESON Chess Problem Database

Problem Display
PID: 270721 (3Q4/5p2/2N5/rpkB2R1/b4p2/P1bp4/8/7K w - - 0 1)

Westbury, Eric Ernest

Hampstead and Highgate Express, 1900

3Q4/5p2/2N5/rpkB2R1/b4p2/P1bp4/8/7K

#2

6 + 8

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4
      • 2.axb4#
  • Tries
    • 1.Bg2+?
      • 1...Kc4
        • 2.Qd5#
      • 1...Be5
        • 2.Qd4#
      • 1...f5!
    • 1.Bf3+?
      • 1...Kc4
        • 2.Qd5#
      • 1...Be5
        • 2.Qd4#
      • 1...f5!
    • 1.Be4+?
      • 1...Kc4
        • 2.Qd5#
      • 1...Be5
        • 2.Qd4#
      • 1...f5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Bxf7#
      • 1...Kxd4
        • 2.Qb6#
      • 1...Bxd4
        • 2.Qc7#
      • 1...Bb3
        • 2.Sxb3#
      • 1...f5
        • 2.Se6#
      • 1...f6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • B(a);OGATE::P(B),XB(a)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(g);N_GUARD,P-FLIGHT::QAB1(F)
        • B(a);P_SPINB(a)::QAB1(F)
      • Refutation
        • P(h);P_SPINP(h)
    • Try
      • B(C);CHECK
      • Vars
        • K(g);N_GUARD,P-FLIGHT::QAB1(F)
        • B(a);P_SPINB(a)::QAB1(F)
      • Refutation
        • P(h);P_SPINP(h)
    • Try
      • B(C);CHECK
      • Vars
        • K(g);N_GUARD,P-FLIGHT::QAB1(F)
        • B(a);P_SPINB(a)::QAB1(F)
      • Refutation
        • P(h);P_SPINP(h)
  • Actual
    • S(E);
    • Threat
      • R(D)+B(C),XP(h)
    • Vars
      • K(g);N_GUARD,S_FLIGHT,XS(E)::QAB(F)
      • B(a);SBLOCK,XS(E)::QAR2(F)
      • B(c);N_GUARD::S(E),XB(c)
      • P(h);N_GUARD::S(E)
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