MESON Chess Problem Database

Problem Display
PID: 145806 (1N3B2/5p2/1n6/1r1k1K2/1ppp4/1R6/8/Q6R w - - 0 1)

Bridgwater, Ralph Herbert

Birmingham Post, 1924

(First published on Tue Dec 16 1924)

1N3B2/5p2/1n6/1r1k1K2/1ppp4/1R6/8/Q6R

#2

6 + 7

15372 Bridgwater Scrapbook 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxa5#
    • 1...d3
      • 2.Qe5#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...d3
        • 2.Qe5#
      • 1...c3!
    • 1.Rh4?
      • threat
        • 2.Rxd4#
        • 2.Qxd4#
        • 2.Qh1#
      • 1...cxb3
        • 2.Rxd4#
        • 2.Qxd4#
      • 1...d3
        • 2.Rd4#
        • 2.Qd4#
        • 2.Qe5#
        • 2.Qh1#
      • 1...c3!
    • 1.Qf1?
      • threat
        • 2.Qg2#
        • 2.Qf3#
      • 1...cxb3
        • 2.Qxb5#
      • 1...c3
        • 2.Qxb5#
      • 1...d3!
    • 1.Qa7?
      • threat
        • 2.Qb7#
        • 2.Qxf7#
      • 1...cxb3
        • 2.Qxf7#
      • 1...c3
        • 2.Qxf7#
      • 1...Rc5
        • 2.Qxf7#
      • 1...Sa4
        • 2.Qd7#
        • 2.Qxf7#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Sa8
        • 2.Qd7#
        • 2.Qxf7#
      • 1...Sc8
        • 2.Qxf7#
      • 1...f6
        • 2.Qb7#
        • 2.Qf7#
      • 1...d3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qf3#
      • 1...bxc3
        • 2.Rxb5#
      • 1...cxb3
        • 2.Qc6#
      • 1...dxc3
        • 2.Rd1#
      • 1...d3
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • R(d);OGATEB::QAR(A),XR(d)
    • P(c);OGATE::QAR1(A)
  • Tries
    • Try
      • R(B);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);OGATE::QAR1(A)
      • Refutation
        • P(b);
    • Try
      • R(B);
      • Threat
        • DUALS(3)
      • Refutation
        • P(b);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);OGATE,XR(C)::QAR2(A),XR(d)
        • P(b);OGATE::QAR2(A),XR(d)
      • Refutation
        • P(c);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);XR(C)::QAB(A),XP(g)
        • P(b);::QAB(A),XP(g)
        • R(d);::QAB(A),XP(g)
        • S(f);N_GUARD::QAR2(A),XS(f)
        • S(f);::QAB(A),XP(g)
      • Refutation
        • P(c);
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • P(a);OGATE,XQ(A)::R(C),XR(d)
      • P(b);OGATE,XR(C)::QAB1(A)
      • P(c);OGATEB,XQ(A)::R(B)
      • P(c);OGATE::QAR1(A)
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