MESON Chess Problem Database

Problem Display
PID: 59541 (B2n4/1r2Q2K/1pk5/PR2nN2/P5p1/5p2/2q2B1b/1bR5 w - - 0 1)

Hume, George

Stubbs, Arthur Goodwin

Comm., Brisbane Courier, 1922-1923

B2n4/1r2Q2K/1pk5/PR2nN2/P5p1/5p2/2q2B1b/1bR5

#2

9 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Sd4#
    • 1...Sg6
      • 2.Sd4#
    • 1...Se6
      • 2.Bxb7#
      • 2.Qxb7#
    • 1...Sf7
      • 2.Bxb7#
      • 2.Qxb7#
  • Tries
    • 1.Rxc2+?
      • 1...Sc4
        • 2.Sd4#
        • 2.Rxc4#
      • 1...Bxc2!
    • 1.Rd5?
      • threat
        • 2.Rd6#
      • 1...Sd7
        • 2.Qxd7#
      • 1...Sd3
        • 2.Qd7#
      • 1...Sc4
        • 2.Qd7#
      • 1...Sg6
        • 2.Qd7#
      • 1...Sef7
        • 2.Qd7#
      • 1...Sdf7
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Kxd5!
    • 1.axb6?
      • threat
        • 2.Qc7#
      • 1...Qc5
        • 2.Rcxc5#
      • 1...Sd3
        • 2.Sd4#
      • 1...Sg6
        • 2.Sd4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Sef7
        • 2.Qe8#
      • 1...Se6
        • 2.Bxb7#
        • 2.Qxb7#
      • 1...Sc4!
  • Keys
    • 1.Bxb6!
      • threat
        • 2.Qc7#
      • 1...Qc5
        • 2.Rcxc5#
        • 2.Rbxc5#
      • 1...Sd3
        • 2.Sd4#
      • 1...Sc4
        • 2.Rc5#
      • 1...Sg6
        • 2.Sd4#
      • 1...Sd7
        • 2.Qe4#
      • 1...Sef7
        • 2.Qe8#
      • 1...Se6
        • 2.Bxb7#
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(f);N_PINS(F)::S(F)
  • Tries
    • Try
      • R(A);CHECK,N_SPINS(F),XQ(b)
      • Refutation
        • B(a);P_PINS(F),XR(A)
    • Try
      • R(E);
      • Threat
        • R1(E)
      • Vars
        • S(f);N_GUARD,N_PINQ(G)::QAB1(G),XS(f)
        • S(f);N_GUARD,N_PINS(F)::QAB1(G)
        • S(f);N_GUARD,N_SPINQ(b)::QAB1(G)
        • S(f);N_GUARD,N_PINQ(G)::QAB1(G)
      • Refutation
        • K(h);N_SPINQ(b),S_FLIGHT,XR(E)
    • Try
      • P(D);XP(g)
      • Threat
        • QAR1(G)
      • Vars
        • Q(b);OGATE::R1(A),XQ(b)
        • S(f);N_PINS(F)::S(F)
        • S(f);N_PINQ(G),SBLOCK::QAB(G)
        • S(f);N_PINQ(G)::QAB(G)
      • Refutation
        • S(f);N_SPINQ(b)
  • Actual
    • B(B);XP(g)
    • Threat
      • QAR1(G)
    • Vars
      • S(f);N_PINS(F)::S(F)
      • S(f);N_SPINQ(b),S_CUTQ(b)::R1(E)
      • S(f);N_PINQ(G),SBLOCK::QAB(G)
      • S(f);N_PINQ(G)::QAB(G)
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