MESON Chess Problem Database

Problem Display
PID: 152923 (nB6/3Q4/qk1p1K2/3R4/p1pP4/P1P5/8/8 w - - 0 1)

Dawson, Thomas Rayner

South African Chess Magazine, 1944

nB6/3Q4/qk1p1K2/3R4/p1pP4/P1P5/8/8

#2

7 + 6

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Qb5
      • 2.Qxb5#
    • 1...Qb7
      • 2.Qb5#
    • 1...Qc8
      • 2.Qb5#
    • 1...Qa5
      • 2.Rxd6#
    • 1...Qa7
      • 2.Qb5#
    • 1...Sc7
      • 2.Qxc7#
  • Tries
    • 1.Kg5?
      • 1...Qb5
        • 2.Qxb5#
      • 1...Qb7
        • 2.Qb5#
      • 1...Qc8
        • 2.Qb5#
      • 1...Qa7
        • 2.Qb5#
      • 1...Sc7
        • 2.Qxc7#
      • 1...Qa5!
    • 1.Ke6?
      • 1...Sc7+
        • 2.Qxc7#
      • 1...Qb5
        • 2.Qxb5#
      • 1...Qb7
        • 2.Qb5#
      • 1...Qa5
        • 2.Rxd6#
      • 1...Qa7
        • 2.Qb5#
      • 1...Qc8!
    • 1.Rc5?
      • threat
        • 2.Qc6#
      • 1...Qb5
        • 2.Qxb5#
        • 2.Qa7#
      • 1...Qb7
        • 2.Qb5#
      • 1...Qc8
        • 2.Qb5#
        • 2.Qa7#
      • 1...dxc5!
  • Keys
    • 1.Kg6!
      • 1...Qb5
        • 2.Qxb5#
      • 1...Qb7
        • 2.Qb5#
      • 1...Qc8
        • 2.Qb5#
      • 1...Qa5
        • 2.Rxd6#
      • 1...Qa7
        • 2.Qb5#
      • 1...Sc7
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • Q(c);N_GUARD::QAR1(F),XQ(c)
    • Q(c);N_GUARD,SBLOCK::QAR1(F)
    • Q(c);N_GUARD::QAR1(F)
    • Q(c);SBLOCK::R(D),XP(e)
    • S(f);N_GUARD::QAB1(F),XS(f)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • Q(c);N_GUARD,P_PINR(D)::QAR1(F),XQ(c)
        • Q(c);N_GUARD,SBLOCK::QAR1(F)
        • Q(c);N_GUARD::QAR1(F)
        • S(f);N_GUARD::QAB1(F),XS(f)
      • Refutation
        • Q(c);P_PINR(D)
    • Try
      • K(E);P-FLIGHT
      • Vars
        • S(f);CHECK,N_GUARD::QAB1(F),XS(f)
        • Q(c);N_GUARD::QAR1(F),XQ(c)
        • Q(c);N_GUARD,SBLOCK::QAR1(F)
        • Q(c);SBLOCK::R(D),XP(e)
        • Q(c);N_GUARD::QAR1(F)
      • Refutation
        • Q(c);P_PINQ(F)
    • Try
      • R(D);
      • Threat
        • QAR1(F)
      • Vars
        • Q(c);N_GUARD,SBLOCK::QAR1(F)
      • Refutation
        • P(e);XR(D)
  • Actual
    • K(E);P-FLIGHT
    • Vars
      • Q(c);N_GUARD::QAR1(F),XQ(c)
      • Q(c);N_GUARD,SBLOCK::QAR1(F)
      • Q(c);N_GUARD::QAR1(F)
      • Q(c);SBLOCK::R(D),XP(e)
      • S(f);N_GUARD::QAB1(F),XS(f)
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