MESON Chess Problem Database

Problem Display
PID: 9801 (b4N2/K2p4/7Q/1p1k4/1P4N1/n2B4/1P3r2/3R4 w - - 0 1)

Heathcote, Godfrey

HM., Australasian (The), 1910

b4N2/K2p4/7Q/1p1k4/1P4N1/n2B4/1P3r2/3R4

#2

8 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Qe3?
      • threat
        • 2.Qc5#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Rxf8
        • 2.Bxb5#
      • 1...d6
        • 2.Qe4#
      • 1...Rc2!
    • 1.Qg5+?
      • 1...Kd4
        • 2.Qc5#
        • 2.Qe5#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Rf5!
    • 1.Qh5+?
      • 1...Kd4
        • 2.Qc5#
        • 2.Qe5#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kd6
        • 2.Qc5#
      • 1...Rf5!
    • 1.Qe6+?
      • 1...Kd4
        • 2.Be2#
        • 2.Qe5#
      • 1...dxe6!
  • Keys
    • 1.Qh7!
      • threat
        • 2.Qxd7#
      • 1...Kd4
        • 2.Be2#
      • 1...Kc6
        • 2.Qxd7#
      • 1...Kd6
        • 2.Qxd7#
      • 1...Rf6
        • 2.Bxb5#
      • 1...Rf7
        • 2.Bxb5#
      • 1...Bc6
        • 2.Be2#
      • 1...Sc4
        • 2.Be4#
      • 1...d6
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • K(d);S_FLIGHT::QAR1(F)
        • K(d);P-FLIGHT::QAB1(F)
        • R(a);N_GUARD,XS(H)::R(A)+B(C),XP(c)
        • P(e);SBLOCK::QAB1(F)
      • Refutation
        • R(a);
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(F)
        • K(d);OGATE,P-FLIGHT::QAB1(F)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(F)
        • K(d);OGATE,P-FLIGHT::QAB1(F)
      • Refutation
        • R(a);P_SPINR(a)
    • Try
      • Q(F);CHECK
      • Refutation
        • P(e);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAR2(F),XP(e)
    • Vars
      • K(d);P-FLIGHT::R(A)+B(C)
      • K(d);S_FLIGHT::QAB1(F),XP(e)
      • K(d);P-FLIGHT::QAR1(F),XP(e)
      • R(a);N_GUARD::R(A)+B(C),XP(c)
      • B(f);SBLOCK::R(A)+B(C)
      • S(b);SBLOCK::R(A)+B(C),DCHECK
      • P(e);SBLOCK::QAB1(F)
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