MESON Chess Problem Database

Problem Display
PID: 227171 (1B2r3/Q3n2P/1n1rNkpP/1R4N1/5P2/8/b3R2K/8 w - - 0 1)

Leppington, WG

Sunday Chronicle, 1946

(First published on Sun Jul 21 1946)

1B2r3/Q3n2P/1n1rNkpP/1R4N1/5P2/8/b3R2K/8

#2

10 + 7

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Qf7#
    • 1...Sf5
      • 2.Qf7#
    • 1...Sc6
      • 2.Qf7#
      • 2.Qg7#
    • 1...Sc8
      • 2.Qf7#
      • 2.Qg7#
    • 1...Sg8
      • 2.Qf7#
      • 2.Qg7#
      • 2.h8Q#
      • 2.h8B#
  • Keys
    • 1.Sg7!
      • threat
        • 2.Sxe8#
      • 1...Rxb8
        • 2.Qxe7#
      • 1...Rd5
        • 2.Re6#
      • 1...Rdd8
        • 2.Be5#
      • 1...Rc8
        • 2.Qxe7#
      • 1...Red8
        • 2.Qxe7#
      • 1...Rf8
        • 2.Qxe7#
      • 1...Rg8
        • 2.Qxe7#
      • 1...Rh8
        • 2.Qxe7#
      • 1...Bd5
        • 2.Qa1#
      • 1...Bf7
        • 2.Se4#
      • 1...Sbd5
        • 2.Qd4#
      • 1...Sed5
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • S(f);OGATE::QAR1(H)
  • Actual
    • S(F);
    • Threat
      • S(F),XR(g)
    • Vars
      • R(g);N_GUARD,XB(J)::QAB1(H),XS(f)
      • R(c);N_GUARD,S_CUTB(a)::R1(A)
      • R(c);OGATE::B(J)
      • R(g);N_GUARD::QAB1(H),XS(f)
      • B(a);OGATE::QAB(H)
      • B(a);SBLOCK::S(E)
      • S(b);OGATE::QAB(H)
      • S(f);OGATE::QAR1(H)
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