MESON Chess Problem Database

Problem Display
PID: 272807 (3b4/2RqR3/1N1k1N2/Pp1B1pP1/3p4/3P4/1B1K1P2/8 w - - 0 1)

Spedding, FE

Liverpool Weekly Mercury, 1901

(First published on Sat Dec 21 1901)

3b4/2RqR3/1N1k1N2/Pp1B1pP1/3p4/3P4/1B1K1P2/8

#2

11 + 6

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Qc8
      • 2.Sxc8#
      • 2.Se8#
    • 1...Qe8
      • 2.Sc8#
      • 2.Sxe8#
  • Keys
    • 1.Bxd4!
      • threat
        • 2.Rcxd7#
        • 2.Rexd7#
      • 1...Kxc7
        • 2.Be5#
      • 1...Kxe7
        • 2.Bc5#
      • 1...Qxc7
        • 2.Re6#
      • 1...Qxe7
        • 2.Rc6#
      • 1...Bxc7
        • 2.Rxd7#
      • 1...Bxe7
        • 2.Rxd7#
      • 1...Qc6
        • 2.Sc8#
      • 1...Qe6
        • 2.Se8#
      • 1...Qc8
        • 2.Sxc8#
        • 2.Se8#
        • 2.Bc5#
        • 2.Be5#
      • 1...Qe8
        • 2.Sc8#
        • 2.Sxe8#
        • 2.Bc5#
        • 2.Be5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(A);XP(a)
    • Threat
      • DUALS(2)
    • Vars
      • K(d);N_GUARD,P_SPINQ(e),S_FLIGHT,XR(J)::B(A)
      • K(d);N_GUARD,P_SPINQ(e),S_FLIGHT,XR(K)::B(A)
      • Q(e);N_GUARD,SBLOCK,XR(J)::R1(K)
      • Q(e);N_GUARD,SBLOCK,XR(K)::R1(J)
      • B(f);XR(J)::R1(K),XQ(e)
      • B(f);XR(K)::R1(J),XQ(e)
      • Q(e);N_GUARD::S(H)
      • Q(e);N_GUARD::S(I)
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