MESON Chess Problem Database

Problem Display
PID: 214577 (3bB3/p1N5/K2k1p2/p2N1Q2/P7/8/8/8 w - - 0 1)

McKim, JB

Newark Sunday Call, 1877

3bB3/p1N5/K2k1p2/p2N1Q2/P7/8/8/8

#2

6 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • 1...Kxc7
        • 2.Qf4#
      • 1...Ke7
        • 2.Qc5#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Be7
        • 2.Sb5#
      • 1...axb6!
  • Keys
    • 1.Se7!
      • 1...Kxc7
        • 2.Qf4#
      • 1...Kxe7
        • 2.Qc5#
      • 1...Bxc7
        • 2.Sc8#
      • 1...Bxe7
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • K(b);S_FLIGHT,XS(E)::QAB(C)
        • K(b);S_FLIGHT::QAB(C)
        • B(e);SBLOCK,XS(E)::S(B)
        • B(e);SBLOCK::S(E)
      • Refutation
        • P(d);XS(B)
  • Actual
    • S(B);
    • Vars
      • K(b);S_FLIGHT,XS(E)::QAB(C)
      • K(b);S_FLIGHT,XS(B)::QAB(C)
      • B(e);SBLOCK,XS(E)::S(B)
      • B(e);SBLOCK,XS(B)::S(E)
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