MESON Chess Problem Database

Problem Display
PID: 151521 (bn5K/2pp3P/5k2/br4NB/1p4P1/4Q1B1/8/8 w - - 0 1)

Dawson, Thomas Rayner

British Chess Magazine, 1934

bn5K/2pp3P/5k2/br4NB/1p4P1/4Q1B1/8/8

#2

7 + 8

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Rb6
      • 2.Qe5#
    • 1...Rb7
      • 2.Qe5#
    • 1...Bd5
      • 2.Qe5#
    • 1...c5
      • 2.Qe5#
    • 1...d5
      • 2.Qe5#
  • Tries
    • 1.Qd4+?
      • 1...Kxg5
        • 2.Qg7#
        • 2.Qf4#
      • 1...Re5
        • 2.Qxe5#
      • 1...Ke7!
    • 1.Qe6+?
      • 1...Kxg5
        • 2.Qg6#
      • 1...dxe6!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Qd8#
      • 1...Kxg5
        • 2.Qg6#
      • 1...Rxg5
        • 2.Qf7#
      • 1...Re5
        • 2.Qxe5#
      • 1...Sc6
        • 2.Se4#
      • 1...c5
        • 2.Qe5#
      • 1...c6
        • 2.Se4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::QAB1(A),XR(c)
    • R(c);N_GUARD::QAB1(A)
    • B(g);S_CUTR(c)::QAB1(A)
    • P(e);S_CUTR(c)::QAB1(A)
    • P(f);S_CUTR(c)::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAB1(A),XR(c)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT,XS(D)::QAR1(A)
      • Refutation
        • P(f);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(d);S_FLIGHT,XS(D)::QAR1(A)
      • R(c);SBLOCK,XS(D)::QAR1(A)
      • R(c);N_GUARD::QAB1(A),XR(c)
      • S(h);S_CUTB(g)::S(D)
      • P(e);S_CUTR(c)::QAB1(A)
      • P(e);S_CUTB(g)::S(D)
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