MESON Chess Problem Database

Problem Display
PID: 137556 (8/8/2Nn4/1P1k4/1Kn2Q2/8/8/3B4 w - - 0 1)

Hume, Arnold A

The Field, 1928

(First published on Thu May 10 1928)

8/8/2Nn4/1P1k4/1Kn2Q2/8/8/3B4

#2

5 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qe5#
    • 1...Sd2
      • 2.Qe5#
    • 1...Sa3
      • 2.Qe5#
    • 1...Se3
      • 2.Qe5#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qe5#
  • Tries
    • 1.Qf5+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxf5!
    • 1.Qf7+?
      • 1...Ke4
        • 2.Qf3#
      • 1...Sxf7!
  • Keys
    • 1.Qf6!
      • 1...Ke4
        • 2.Qf3#
      • 1...Sxb5
        • 2.Bf3#
      • 1...Sb2
        • 2.Qe5#
      • 1...Sd2
        • 2.Qe5#
      • 1...Sa3
        • 2.Qe5#
      • 1...Se3
        • 2.Qe5#
      • 1...Sa5
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
      • 1...Se4
        • 2.Se7#
      • 1...Sf5
        • 2.Bf3#
      • 1...Sb7
        • 2.Bf3#
      • 1...Sf7
        • 2.Bf3#
      • 1...Sc8
        • 2.Bf3#
      • 1...Se8
        • 2.Bf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::QAR1(C),XS(a)
      • Refutation
        • S(c);XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(C)
      • Refutation
        • S(c);XQ(C)
  • Actual
    • Q(C);
    • Vars
      • K(b);S_FLIGHT::QAB1(C)
      • S(c);N_GUARD,XP(D)::B(A)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • S(c);SBLOCK::S(E)
      • S(c);N_GUARD::B(A)
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