MESON Chess Problem Database

Problem Display
PID: 259329 (8/5Pr1/4N2k/5BN1/5KP1/8/8/8 w - - 0 1)

Keeble, John Frederick

Western Morning News, 1924

(First published on Sat Jan 5 1924)

8/5Pr1/4N2k/5BN1/5KP1/8/8/8

#2

6 + 2

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf7
      • 2.Sxf7#
    • 1...Rg8
      • 2.fxg8S#
  • Keys
    • 1.f8R!
      • 1...Rxg5
        • 2.Rh8#
      • 1...Rg6
        • 2.Rh8#
      • 1...Ra7
        • 2.Rf6#
      • 1...Rb7
        • 2.Rf6#
      • 1...Rc7
        • 2.Rf6#
      • 1...Rd7
        • 2.Rf6#
      • 1...Re7
        • 2.Rf6#
      • 1...Rf7
        • 2.Sxf7#
      • 1...Rh7
        • 2.Rf6#
      • 1...Rg8
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • R(b);P_PINB(C),XP(F)::S(D),XR(b)
    • R(b);OGATE::PXR(b)=S
  • Actual
    • P(F);
    • Vars
      • R(b);N_GUARD,XS(D)::R(F)
      • R(b);N_GUARD::R(F)
      • R(b);N_GUARD,SBLOCK::R(F)
      • R(b);N_GUARD,P_PINB(C)::S(D),XR(b)
      • R(b);N_GUARD::S(D)
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