MESON Chess Problem Database

Problem Display
PID: 51105 (7B/8/5Pp1/7p/2PN1k1p/1R5P/Q3K3/8 w - - 0 1)

Gold, S?

Burnley Express, 1881

7B/8/5Pp1/7p/2PN1k1p/1R5P/Q3K3/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kg5
      • 2.Qd2#
  • Tries
    • 1.Qb1?
      • 1...Kg5
        • 2.Qc1#
      • 1...g5
        • 2.Qf5#
      • 1...Ke5!
    • 1.Qc2?
      • 1...Kg5
        • 2.Qc1#
        • 2.Qd2#
      • 1...g5
        • 2.Qf5#
      • 1...Ke5!
    • 1.Qd2+?
      • 1...Ke4
        • 2.Qe3#
      • 1...Ke5!
    • 1.Qa5?
      • 1...g5
        • 2.Qf5#
      • 1...Ke4!
  • Keys
    • 1.Kd3!
      • 1...Kg3
        • 2.Ke4#
      • 1...Ke5
        • 2.Qh2#
      • 1...Kg5
        • 2.Qd2#
      • 1...g5
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB(A)
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(d);N_GUARD::QAR1(A)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::R(C)+K(B)
      • K(a);S_FLIGHT::QAB(A)
      • P(d);SBLOCK::QAB(A)
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Developed and maintained by Brian Stephenson.
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