MESON Chess Problem Database

Problem Display
PID: 152718 (8/3p4/2p2p2/2Q5/1R1Pk1p1/6P1/4K3/8 w - - 0 1)

Dawson, Thomas Rayner

Bath & West Chronicle, 1947

(First published on Wed Jan 15 1947)

8/3p4/2p2p2/2Q5/1R1Pk1p1/6P1/4K3/8

#2

5 + 5

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Qe5#
    • 1...d5
      • 2.Qc2#
  • Tries
    • 1.Ra4?
      • 1...d5
        • 2.Qc2#
      • 1...f5
        • 2.Qe5#
      • 1...d6!
    • 1.Rb7?
      • 1...d6
        • 2.Re7#
      • 1...f5
        • 2.Qe5#
      • 1...d5!
  • Keys
    • 1.Qh5!
      • threat
        • 2.d5#
      • 1...f5
        • 2.Qh1#
      • 1...c5
        • 2.dxc5#
      • 1...d5
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD::QAR1(E)
    • P(e);SBLOCK::QAB(E)
  • Tries
    • Try
      • R(C);
      • Vars
        • P(e);SBLOCK::QAB(E)
        • P(d);N_GUARD::QAR1(E)
      • Refutation
        • P(e);
    • Try
      • R(C);
      • Vars
        • P(e);OGATE::R(C)
        • P(d);N_GUARD::QAR1(E)
      • Refutation
        • P(e);
  • Actual
    • Q(E);
    • Threat
      • R(C)+P(D)
    • Vars
      • P(d);SBLOCK::QAB(E)
      • P(c);OGATE::R(C)+P(D),XP(c)
      • P(e);SBLOCK::QAR2(E),XP(b)
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