MESON Chess Problem Database

Problem Display
PID: 4935 (8/2K4B/Q2Np1n1/2pk4/5pr1/2P5/7B/8 w - - 0 1)

Locock, Charles Dealtry

Manchester Weekly Times, 1894

8/2K4B/Q2Np1n1/2pk4/5pr1/2P5/7B/8

#2

6 + 6

187 The Chess Bouquet 1897

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Be4#
    • 1...f3
      • 2.Qb7#
      • 2.Qc6#
      • 2.Qa8#
    • 1...c4
      • 2.Qb5#
      • 2.Qa5#
    • 1...e5
      • 2.Bg8#
      • 2.Qc4#
  • Tries
    • 1.Qa2+?
      • 1...c4
        • 2.Qa5#
      • 1...Ke5!
    • 1.Qa4?
      • threat
        • 2.Qe4#
      • 1...c4
        • 2.Qb5#
        • 2.Qa5#
      • 1...f3
        • 2.Qc6#
        • 2.Qa8#
      • 1...e5
        • 2.Bg8#
        • 2.Qc4#
      • 1...Ke5!
    • 1.c4+?
      • 1...Ke5
        • 2.Qa1#
      • 1...Kd4!
  • Keys
    • 1.Qa1!
      • threat
        • 2.c4#
      • 1...Ke5
        • 2.c4#
      • 1...c4
        • 2.Qa5#
      • 1...Se5
        • 2.Be4#
      • 1...f3
        • 2.Qa8#
      • 1...e5
        • 2.Bg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(f);OGATE,SBLOCK::B(F)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(c);OGATEB,P_SPINP(c)::QAR(C)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(a)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(a)
    • Try
      • P(B);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINP(a)::QAB(C)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • P(B)
    • Vars
      • K(d);P-FLIGHT,P_SPINP(a)::QAB(C)+P(B)
      • P(c);OGATEB::QAR(C)
      • S(f);OGATE,SBLOCK::B(F)
      • P(a);::QAB(C)
      • P(e);OGATEB,SBLOCK::B(F)
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