MESON Chess Problem Database

Problem Display
PID: 151668 (8/5Q1b/1p6/4p3/4k3/1K1N3n/2N1B3/6n1 w - - 0 1)

Moon, James Frank

Hampstead and Highgate Express, 1897

(First published on Sat Apr 3 1897)

8/5Q1b/1p6/4p3/4k3/1K1N3n/2N1B3/6n1

#2

5 + 6

14867 BCPS Library 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bf5
      • 2.Qc4#
      • 2.Qb7#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sf2
      • 2.Sxf2#
    • 1...Sf4
      • 2.Sf2#
    • 1...Sg5
      • 2.Sf2#
    • 1...b5
      • 2.Sc5#
  • Tries
    • 1.Bf3+?
      • 1...Kxd3
        • 2.Qd5#
        • 2.Qd7#
      • 1...Sxf3!
    • 1.Bg4?
      • threat
        • 2.Qc4#
      • 1...Kxd3
        • 2.Qd5#
      • 1...Se2
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...b5
        • 2.Sc5#
      • 1...Bg8!
  • Keys
    • 1.Bh5!
      • 1...Kxd3
        • 2.Qd5#
      • 1...Bg6
        • 2.Bxg6#
      • 1...Bf5
        • 2.Qc4#
      • 1...Bg8
        • 2.Bg6#
      • 1...Se2
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sf2
        • 2.Sxf2#
      • 1...Sf4
        • 2.Sf2#
      • 1...Sg5
        • 2.Sf2#
      • 1...b5
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAB1(E),XS(a)
    • S(b);N_GUARD::S(D),XS(b)
    • S(b);N_GUARD::S(D)
    • P(e);N_GUARD::S(D)
  • Tries
    • Try
      • B(B);CHECK
      • Refutation
        • S(a);XB(B)
    • Try
      • B(B);
      • Threat
        • QAR2(E)
      • Vars
        • K(c);S_FLIGHT,XS(D)::QAR2(E)
        • S(a);N_GUARD::QAB1(E)
        • S(a);N_GUARD::QAB1(E),XS(a)
        • P(e);N_GUARD::S(D)
      • Refutation
        • B(f);P_PINQ(E)
  • Actual
    • B(B);
    • Vars
      • K(c);S_FLIGHT,XS(D)::QAR2(E)
      • B(f);N_GUARD::B(B),XB(f)
      • B(f);SBLOCK::QAR2(E)
      • B(f);N_GUARD,P_PINQ(E)::B(B)
      • S(a);N_GUARD::QAB1(E)
      • S(a);N_GUARD::QAB1(E),XS(a)
      • S(b);N_GUARD::S(D),XS(b)
      • S(b);N_GUARD::S(D)
      • P(e);N_GUARD::S(D)
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