MESON Chess Problem Database

Problem Display
PID: 261827 (8/K3R3/3pN3/3k4/8/1R6/B5N1/8 w - - 0 1)

Fothergill, Percival Guy Laugham (PGLF)

The Field, 1887

(First published on Sat Mar 5 1887)

8/K3R3/3pN3/3k4/8/1R6/B5N1/8

#2

6 + 2

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Se3#
    • 1...Kc6
      • 2.Rb6#
  • Tries
    • 1.Rb4+?
      • 1...Kc6
        • 2.Rb6#
        • 2.Rc7#
      • 1...Ke5!
    • 1.Rb5+?
      • 1...Kc6
        • 2.Sd4#
        • 2.Rb6#
      • 1...Ke4!
  • Keys
    • 1.Rf7!
      • 1...Kc4
        • 2.Se3#
      • 1...Ke4
        • 2.Re3#
      • 1...Ke5
        • 2.Re3#
      • 1...Kc6
        • 2.Rb6#
      • 1...Kxe6
        • 2.Re3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);N_GUARD,S_FLIGHT::S(B)
    • K(a);N_GUARD,S_FLIGHT::R1(C)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(B)
      • K(a);N_GUARD,S_FLIGHT::R1(C)
      • K(a);N_GUARD,P-FLIGHT::R(C)
      • K(a);N_GUARD,S_FLIGHT,XS(D)::B(A)+R(C),DCHECK
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