MESON Chess Problem Database

Problem Display
PID: 141229 (1K1Q4/1N6/4P1P1/4kp2/N3nRR1/8/B7/7n w - - 0 1)

Gilmour, DW

The Chess Monthly (Hoffer), 1892

1K1Q4/1N6/4P1P1/4kp2/N3nRR1/8/B7/7n

#2

9 + 4

14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sf2
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sc3
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sg3
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sc5
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sg5
      • 2.Qd4#
      • 2.Qh8#
    • 1...Sd6
      • 2.Qh8#
    • 1...Sf6
      • 2.Qc7#
      • 2.Qd4#
      • 2.Qd6#
  • Tries
    • 1.Sb2?
      • threat
        • 2.Sd3#
      • 1...Sef2
        • 2.Qd4#
        • 2.Qh8#
      • 1...Sc5
        • 2.Qd4#
        • 2.Qh8#
      • 1...Shf2!
    • 1.Sac5?
      • threat
        • 2.Sd3#
      • 1...Sxc5
        • 2.Qd4#
        • 2.Qh8#
      • 1...Sef2
        • 2.Sd7#
        • 2.Qd4#
        • 2.Qh8#
      • 1...Shf2!
    • 1.Sbc5?
      • threat
        • 2.Sd3#
      • 1...Sxc5
        • 2.Qd4#
      • 1...Sef2
        • 2.Qd4#
      • 1...Shf2!
    • 1.Qa5+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Sc5
        • 2.Qc3#
      • 1...Kf6!
    • 1.Qc7+?
      • 1...Kd4
        • 2.Qc3#
      • 1...Sd6
        • 2.Qc3#
        • 2.Qg7#
      • 1...Kf6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sf7#
      • 1...Kd4
        • 2.Sc4#
      • 1...Sxd6
        • 2.Qh8#
      • 1...fxg4
        • 2.Rxe4#
      • 1...Sg5
        • 2.Rxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::QAB(I)
  • Tries
    • Try
      • S(B);
      • Threat
        • S(B)
      • Refutation
        • S(a);
    • Try
      • S(B);
      • Threat
        • S(B)
      • Refutation
        • S(a);
    • Try
      • S(G);
      • Threat
        • S(G)
      • Vars
        • S(b);XS(G)::QAB1(I)
        • S(b);::QAB1(I)
      • Refutation
        • S(a);
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAB1(I)
        • S(b);N_GUARD,P_SPINS(b)::QAB(I)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);P_SPINS(b),S_FLIGHT::QAB1(I)
      • Refutation
        • K(c);P_SPINP(d),S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(c);P_SPINS(b),S_FLIGHT::QAR(I)+S(G)
      • S(b);N_GUARD,SBLOCK,XS(G)::QAB(I)
      • P(d);N_GUARD,XR(D)::R1(C),XS(b)
      • S(b);::R1(C),XP(d)
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