MESON Chess Problem Database

Problem Display
PID: 31717 (K7/3B1P1R/3kp2Q/8/3Np3/1P6/3B4/3R4 w - - 0 1)

Rowland, Frideswide F (Mrs TB, nee Beechey)

Brighton Guardian, 0000

K7/3B1P1R/3kp2Q/8/3Np3/1P6/3B4/3R4

#2

9 + 3

3467 Chess Blossoms 1883
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd7
      • 2.f8Q#
    • 1...Ke7
      • 2.f8Q#
  • Tries
    • 1.Bb4+?
      • 1...Kd5
        • 2.Sf3#
        • 2.Sc6#
        • 2.Qxe6#
      • 1...Ke5
        • 2.Qg5#
      • 1...Kxd7
        • 2.f8Q#
        • 2.f8R#
      • 1...Kc7!
    • 1.Bf4+?
      • 1...Kd5
        • 2.Sxe6#
      • 1...Kxd7
        • 2.f8Q#
        • 2.f8R#
      • 1...Ke7
        • 2.Sc6#
        • 2.f8Q#
        • 2.f8R#
      • 1...Kc5!
    • 1.Qxe6+?
      • 1...Kc7
        • 2.Ba5#
      • 1...Kc5!
    • 1.f8Q+?
      • 1...Ke5
        • 2.Qc5#
      • 1...Kc7
        • 2.Ba5#
        • 2.Qb8#
      • 1...Kd5!
  • Keys
    • 1.Be3!
      • 1...Kc5
        • 2.Sc2#
      • 1...Kd5
        • 2.Sf3#
        • 2.Sc6#
      • 1...Ke5
        • 2.Qxe6#
      • 1...Kc7
        • 2.Sxe6#
      • 1...Kxd7
        • 2.f8Q#
      • 1...Ke7
        • 2.Sc6#
        • 2.f8Q#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);N_SPINP(c),P-FLIGHT,XB(F)::P=Q
    • K(b);N_SPINP(c),S_FLIGHT::P=Q
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAR2(E)
        • K(b);N_SPINP(c),P-FLIGHT,XB(F)::P=Q
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • B(B);CHECK
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::R(A)+S(D),XP(c)
        • K(b);N_SPINP(c),P-FLIGHT,XB(F)::P=Q
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • Q(E);CHECK,XP(c)
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(G);CHECK
      • Vars
        • K(b);N_SPINP(c),OGATE,S_FLIGHT::QAR2(G)
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(b);N_SPINP(c),S_FLIGHT::B(B)+S(D)
      • K(b);N_SPINP(c),S_FLIGHT::QAR1(E),XP(c)
      • K(b);N_SPINP(c),S_FLIGHT::S(D),XP(c)
      • K(b);N_SPINP(c),P-FLIGHT,XB(F)::P=Q
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