MESON Chess Problem Database

Problem Display
PID: 145819 (8/3B1R2/4p1N1/6k1/8/8/4K2Q/8 w - - 0 1)

Bridgwater, Ralph Herbert

Birmingham Post, 1926

(First published on Tue Aug 3 1926)

8/3B1R2/4p1N1/6k1/8/8/4K2Q/8

#2

5 + 2

15372 Bridgwater Scrapbook 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh4#
  • Tries
    • 1.Se7?
      • 1...Kg4
        • 2.Rg7#
      • 1...e5!
    • 1.Rf6?
      • threat
        • 2.Qh4#
      • 1...Kg4
        • 2.Qh4#
      • 1...Kxf6!
    • 1.Qg1+?
      • 1...Kh5
        • 2.Rh7#
      • 1...Kh6!
    • 1.Qg3+?
      • 1...Kh5
        • 2.Rh7#
      • 1...Kh6!
    • 1.Qg2+?
      • 1...Kh5
        • 2.Rh7#
      • 1...Kh6!
    • 1.Qh6+?
      • 1...Kg4
        • 2.Qh4#
      • 1...Kxh6!
    • 1.Qh7?
      • 1...Kg4
        • 2.Qh4#
      • 1...e5!
  • Keys
    • 1.Rg7!
      • 1...Kg4
        • 2.Se7#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf6
        • 2.Qe5#
      • 1...e5
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::R(E)
      • Refutation
        • P(b);
    • Try
      • R(E);
      • Threat
        • QAB1(B)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XR(E)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B)
      • Refutation
        • P(b);
  • Actual
    • R(E);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::R(E)+S(C)
      • K(a);P-FLIGHT,P_SPINP(b)::QAR1(B)
      • K(a);S_FLIGHT::QAB1(B)
      • P(b);::QAB1(B)
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