MESON Chess Problem Database

Problem Display
PID: 30871 (Q7/8/1K6/3RP3/1Nk1b3/1p6/3P1p2/3n1q2 w - - 0 1)

Menzies, Hugh James

The Westminster Papers, 1875

Q7/8/1K6/3RP3/1Nk1b3/1p6/3P1p2/3n1q2

#2

6 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Ka5?
      • threat
        • 2.Qc6#
        • 2.Qa6#
        • 2.Qc8#
      • 1...Bxd5
        • 2.Qxd5#
      • 1...Qh3
        • 2.Qc6#
        • 2.Qa6#
      • 1...Bf5
        • 2.Qc6#
        • 2.Qa6#
      • 1...Sc3
        • 2.Qc6#
        • 2.Qc8#
      • 1...b2!
    • 1.Rc5+?
      • 1...Kxb4
        • 2.Qa5#
      • 1...Kd4!
    • 1.Qa5?
      • threat
        • 2.Qb5#
        • 2.Qc5#
      • 1...Bxd5
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...b2!
  • Keys
    • 1.Sc6!
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Qg8#
      • 1...Bxd5
        • 2.Qa6#
      • 1...b2
        • 2.Qa2#
      • 1...Qd3
        • 2.Rc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • B(f);OGATE,XR(C)::QAB1(F),XB(f)
      • Refutation
        • P(d);
    • Try
      • R(C);CHECK
      • Vars
        • K(e);P-FLIGHT,XS(B)::QAB1(F)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);XR(C)::QAR1(F)
        • S(a);::QAR1(F)
      • Refutation
        • P(d);
  • Actual
    • S(B);
    • Threat
      • R1(C)
    • Vars
      • K(e);OGATEB,S_FLIGHT,XR(C)::QAB(F)
      • B(f);SBLOCK,XR(C)::QAB(F)
      • P(d);OGATEB::QAB(F)
      • Q(b);SBLOCK::R1(C)
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