MESON Chess Problem Database

Problem Display
PID: 56554 (6K1/p5BQ/r1p5/2PR1Rp1/4kP2/n6n/bp5N/1q1N2r1 w - - 0 1)

Sparke, Arthur M

5th HM., Brisbane Courier, 1916-1917

6K1/p5BQ/r1p5/2PR1Rp1/4kP2/n6n/bp5N/1q1N2r1

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd5+
      • 2.Rf7#
    • 1...Sc4
      • 2.Rd4#
    • 1...Sxf4
      • 2.Re5#
    • 1...gxf4
      • 2.Re5#
      • 2.Rg5#
  • Tries
    • 1.Bxb2?
      • threat
        • 2.Qe7#
      • 1...Bxd5+
        • 2.Rf7#
      • 1...gxf4+
        • 2.Rg5#
      • 1...Sxf4
        • 2.Re5#
      • 1...cxd5
        • 2.Rf6#
      • 1...Sc4
        • 2.Rd4#
      • 1...Qxb2!
    • 1.Bh8?
      • threat
        • 2.Qe7#
      • 1...Bxd5+
        • 2.Rf7#
      • 1...gxf4+
        • 2.Rg5#
      • 1...Sxf4
        • 2.Re5#
      • 1...Sc4
        • 2.Rd4#
      • 1...cxd5!
    • 1.Qg6?
      • threat
        • 2.Qe8#
        • 2.Qe6#
      • 1...Bxd5+
        • 2.Rf7#
      • 1...Sxf4
        • 2.Re5#
      • 1...Sc4
        • 2.Rd4#
      • 1...cxd5!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qe7#
      • 1...Bxd5+
        • 2.Rf7#
      • 1...gxf4+
        • 2.Rg5#
      • 1...Sxf4
        • 2.Re5#
      • 1...cxd5
        • 2.Rf6#
      • 1...Sc4
        • 2.Rd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,SBLOCK,XR(E)::QAB(H)+R(F)
    • S(e);N_PINR(E)::R1(E)
    • S(f);SBLOCK,XP(C)::QAB(H)+R(F),DCHECK
  • Tries
    • Try
      • B(G);XP(d)
      • Threat
        • QAR(H)
      • Vars
        • B(c);CHECK,SBLOCK,XR(E)::QAB(H)+R(F)
        • P(h);CHECK,SBLOCK,XP(C)::QAB(H)+R(F)
        • S(f);SBLOCK,XP(C)::QAB(H)+R(F),DCHECK
        • P(j);SBLOCK,XR(E)::QAB(H)+R(F)
        • S(e);N_PINR(E)::R1(E)
      • Refutation
        • Q(a);XB(G)
    • Try
      • B(G);
      • Threat
        • QAR(H)
      • Vars
        • B(c);CHECK,SBLOCK,XR(E)::QAB(H)+R(F)
        • P(h);CHECK,SBLOCK,XP(C)::QAB(H)+R(F)
        • S(f);SBLOCK,XP(C)::QAB(H)+R(F),DCHECK
        • S(e);N_PINR(E)::R1(E)
      • Refutation
        • P(j);XR(E)
    • Try
      • Q(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(c);CHECK,SBLOCK,XR(E)::QAB(H)+R(F)
        • S(f);SBLOCK,XP(C)::QAB(H)+R(F),DCHECK
        • S(e);N_PINR(E)::R1(E)
      • Refutation
        • P(j);XR(E)
  • Actual
    • B(G);
    • Threat
      • QAR(H)
    • Vars
      • B(c);CHECK,SBLOCK,XR(E)::QAB(H)+R(F)
      • P(h);CHECK,SBLOCK,XP(C)::QAB(H)+R(F)
      • S(f);SBLOCK,XP(C)::QAB(H)+R(F),DCHECK
      • P(j);SBLOCK,XR(E)::QAB(H)+R(F)
      • S(e);N_PINR(E)::R1(E)
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