MESON Chess Problem Database

Problem Display
PID: 23132 (n1k5/bp3K2/8/Q3B3/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

n1k5/bp3K2/8/Q3B3/8/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sc7
      • 2.Qxc7#
  • Tries
    • 1.Ke7?
      • threat
        • 2.Qd8#
      • 1...Sc7
        • 2.Qxc7#
      • 1...b5
        • 2.Qa6#
      • 1...b6
        • 2.Qa6#
      • 1...Bb6
        • 2.Qxa8#
      • 1...Sb6
        • 2.Qc5#
      • 1...Bc5+!
  • Keys
    • 1.Ke8!
      • threat
        • 2.Qd8#
      • 1...Sc7+
        • 2.Qxc7#
      • 1...b5
        • 2.Qa6#
      • 1...b6
        • 2.Qa6#
      • 1...Bb6
        • 2.Qxa8#
      • 1...Sb6
        • 2.Qc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::QAR1(A),XS(c)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • S(c);N_GUARD::QAR1(A),XS(c)
        • P(b);OGATEB::QAB(A)
        • B(a);OGATE::QAR2(A),XS(c)
        • S(c);N_GUARD,S_CUTB(a)::QAR(A)
      • Refutation
        • B(a);CHECK
  • Actual
    • K(C);S_FLIGHT
    • Threat
      • QAR1(A)
    • Vars
      • S(c);CHECK,N_GUARD::QAR1(A),XS(c)
      • P(b);OGATEB::QAB(A)
      • B(a);OGATE::QAR2(A),XS(c)
      • S(c);N_GUARD,S_CUTB(a)::QAR(A)
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