MESON Chess Problem Database

Problem Display
PID: 269204 (3R3B/3n2R1/2p1p3/2p1kN2/2P1p3/4N3/3K4/8 w - - 0 1)

Thomas, WO

Sunday Referee, 1930

(First published on Sun Aug 31 1930)

3R3B/3n2R1/2p1p3/2p1kN2/2P1p3/4N3/3K4/8

#2

7 + 6

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rg4#
    • 1...Sb8
      • 2.Rg4#
    • 1...Sf8
      • 2.Rg4#
  • Keys
    • 1.Sh4!
      • 1...Kd4
        • 2.Rgxd7#
      • 1...Kf4
        • 2.Rg4#
      • 1...Kd6
        • 2.Rgxd7#
      • 1...Kf6
        • 2.Sg4#
      • 1...Sf6
        • 2.Sg6#
      • 1...Sb6
        • 2.Rg4#
        • 2.Rf7#
      • 1...Sb8
        • 2.Rg4#
        • 2.Rf7#
      • 1...Sf8
        • 2.Rg4#
        • 2.Rf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 3
  • Sets
    • S(f);N_GUARD::B(G)+R(E)
  • Actual
    • S(D);
    • Vars
      • K(c);N_GUARD,P_SPINS(f),S_FLIGHT::B(G)+R(E),DCHECK,XS(f)
      • K(c);N_GUARD,S_CUTS(f),S_FLIGHT::R1(E)
      • K(c);N_GUARD,P_SPINS(f),S_FLIGHT::R1(E),XS(f)
      • K(c);N_GUARD,S_FLIGHT::S(B)
      • S(f);SBLOCK::S(D)
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