MESON Chess Problem Database

Problem Display
PID: 152975 (8/2prp3/1bB5/p7/2kP2R1/P6p/2K5/6nQ w - - 0 1)

Dawson, Thomas Rayner

Melbourne Leader, 1944

(First published on Wed Sep 13 1944)

8/2prp3/1bB5/p7/2kP2R1/P6p/2K5/6nQ

#2

6 + 8

15256 TRD Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd4
      • 2.Qd5#
    • 1...Rd5
      • 2.Qxd5#
    • 1...Sf3
      • 2.Qf1#
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qb3#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Rxd4
        • 2.Qd5#
        • 2.Qc3#
      • 1...Bxd4
        • 2.Qc3#
      • 1...Se2
        • 2.Qxe2#
        • 2.Qb3#
        • 2.Qd3#
      • 1...a4
        • 2.Qc3#
        • 2.Qd3#
      • 1...Sxf3!
    • 1.Qe4?
      • threat
        • 2.Qd3#
      • 1...Rxd4
        • 2.Qd5#
      • 1...Bxd4!
    • 1.Qxh3?
      • threat
        • 2.Qb3#
        • 2.Qc3#
        • 2.Qd3#
      • 1...Rxd4
        • 2.Qc3#
      • 1...Bxd4
        • 2.Qc3#
      • 1...Se2
        • 2.Qb3#
        • 2.Qd3#
      • 1...Sf3
        • 2.Qf1#
      • 1...a4
        • 2.Qc3#
        • 2.Qd3#
      • 1...Sxh3!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Ba6#
      • 1...Kb5
        • 2.Qc6#
      • 1...Rxd4
        • 2.Qd5#
      • 1...Bxd4
        • 2.Qc6#
      • 1...Rd5
        • 2.Qxd5#
      • 1...Sf3
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(g);N_GUARD,P_SPINR(g),XP(D)::QAB1(A)
    • R(g);N_GUARD::QAB1(A),XR(g)
    • S(a);OGATE::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • DUALS(3)
      • Vars
        • B(e);P_SPINB(e),XP(D)::QAR1(A)
      • Refutation
        • S(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • R(g);N_GUARD,P_SPINR(g),XP(D)::QAB1(A)
      • Refutation
        • B(e);P_SPINB(e),XP(D)
    • Try
      • Q(A);XP(b)
      • Threat
        • DUALS(3)
      • Vars
        • R(g);P_SPINR(g),XP(D)::QAR1(A)
        • B(e);P_SPINB(e),XP(D)::QAR1(A)
        • S(a);N_GUARD::QAB(A)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • B(F);
    • Threat
      • B(F)
    • Vars
      • K(c);S_FLIGHT::QAB1(A)
      • R(g);N_GUARD,P_SPINR(g),XP(D)::QAB1(A)
      • B(e);N_GUARD,P_SPINB(e),XP(D)::QAR2(A)
      • R(g);N_GUARD::QAB1(A),XR(g)
      • S(a);OGATE::QAB(A)
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