MESON Chess Problem Database

Problem Display
PID: 271413 (8/3Q2K1/4N3/4k2b/2RN4/6pn/3P1n2/4r3 w - - 0 1)

Westbury, Eric Ernest

Reading Observer, 1902

8/3Q2K1/4N3/4k2b/2RN4/6pn/3P1n2/4r3

#2

6 + 6

17417 Westbury Scrapbooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Rc5#
  • Tries
    • 1.Sc5?
      • threat
        • 2.Sc6#
      • 1...Kf4
        • 2.Qf5#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Se4
        • 2.Sd3#
      • 1...Re4!
    • 1.Qb5+?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kd6!
    • 1.Qd6+?
      • 1...Ke4
        • 2.Sc5#
      • 1...Kxd6!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sc6#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxf4
        • 2.Qf5#
      • 1...Re4
        • 2.Qc7#
      • 1...Bf3
        • 2.Sxf3#
      • 1...Se4
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(a);SBLOCK::R(B)
  • Tries
    • Try
      • S(D);
      • Threat
        • S(C)
      • Vars
        • K(e);N_GUARD,S_FLIGHT::QAR1(E)
        • B(f);N_GUARD::S(C),XB(f)
        • S(b);N_GUARD,SBLOCK::S(D)
      • Refutation
        • R(a);
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);OGATE,P-FLIGHT::QAB1(E)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT::S(D)
      • Refutation
        • K(e);S_FLIGHT,XQ(E)
  • Actual
    • S(D);
    • Threat
      • S(C)
    • Vars
      • K(e);N_GUARD,P-FLIGHT::QAB1(E)
      • K(e);N_GUARD,S_FLIGHT,XS(D)::QAR1(E)
      • R(a);SBLOCK::QAB(E)
      • B(f);N_GUARD::S(C),XB(f)
      • S(b);N_GUARD,SBLOCK::S(D)
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