MESON Chess Problem Database

Problem Display
PID: 269813 (1bR3K1/1p3p2/1p2PP2/1r1k1rn1/7Q/Np6/4R3/8 w - - 0 1)

Westbury, Eric Ernest

1st Prize, Birmingham News, 1899

1bR3K1/1p3p2/1p2PP2/1r1k1rn1/7Q/Np6/4R3/8

#2

7 + 9

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Qc4#
  • Tries
    • 1.Rd8+?
      • 1...Kc5
        • 2.Qc4#
      • 1...Bd6
        • 2.Qc4#
      • 1...Kc6!
    • 1.Qe4+?
      • 1...Kd6
        • 2.Sc4#
      • 1...Sxe4!
  • Keys
    • 1.Qc4+!
      • 1...Kd6
        • 2.Rd8#

This is a version

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(i);SBLOCK::QAB1(C)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • K(c);P-FLIGHT::QAR1(C)
        • B(i);P_SPINB(i)::QAB1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);P-FLIGHT,S_CUTS(e)::S(B)
      • Refutation
        • S(e);XQ(C)
  • Actual
    • Q(C);CHECK
    • Vars
      • K(c);P-FLIGHT::R(F)
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