MESON Chess Problem Database

Problem Display
PID: 51416 (3N2R1/3n4/3p4/2pr1k1P/2N4B/K2n1PP1/2B2p2/8 w - - 0 1)

King-Farlow, Charles P

The Guardian, 1959

3N2R1/3n4/3p4/2pr1k1P/2N4B/K2n1PP1/2B2p2/8

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Sxd6#
    • 1...Se5
      • 2.Se3#
    • 1...Sb6
      • 2.Rf8#
    • 1...Sf6
      • 2.Rg5#
    • 1...Sb8
      • 2.Rf8#
    • 1...Sf8
      • 2.Rxf8#
  • Tries
    • 1.Re8?
      • threat
        • 2.Se3#
      • 1...Re5
        • 2.Sxd6#
      • 1...f1S!
    • 1.Rf8+?
      • 1...Sf6
        • 2.Rxf6#
      • 1...Sxf8!
  • Keys
    • 1.Ba4!
      • threat
        • 2.Bxd7#
      • 1...Re5
        • 2.Sxd6#
      • 1...Sf4
        • 2.g4#
      • 1...S3e5
        • 2.Se3#
      • 1...S7e5
        • 2.Se3#
      • 1...Sb6
        • 2.Rf8#
      • 1...Sf6
        • 2.Rg5#
      • 1...Sb8
        • 2.Rf8#
      • 1...Sf8
        • 2.Rxf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(d);N_GUARD,SBLOCK::S(E),XP(f)
    • S(g);SBLOCK::S(E)
    • S(g);N_GUARD::R(I)
    • S(g);SBLOCK::R1(I)
    • S(g);N_GUARD::R(I),XS(g)
  • Tries
    • Try
      • R(I);
      • Threat
        • S(E)
      • Vars
        • R(d);N_GUARD::S(E),XP(f)
      • Refutation
        • P(a);
    • Try
      • R(I);CHECK
      • Vars
        • S(g);N_GUARD::R1(I),XS(g)
      • Refutation
        • S(g);XR(I)
  • Actual
    • B(A);N_PINS(b)
    • Threat
      • B(A),XS(g)
    • Vars
      • R(d);N_GUARD,SBLOCK::S(E),XP(f)
      • S(b);SBLOCK::P(D)
      • S(b);SBLOCK::S(E)
      • S(g);SBLOCK::S(E)
      • S(g);N_GUARD::R(I)
      • S(g);SBLOCK::R1(I)
      • S(g);N_GUARD::R(I),XS(g)
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