MESON Chess Problem Database

Problem Display
PID: 159758 (6Qb/8/1B1P1k2/3P3b/8/4Nn1N/8/K7 w - - 0 1)

Andrew, Frederick William

Brighton Society, 1901

(First published on Sat Jul 13 1901)

6Qb/8/1B1P1k2/3P3b/8/4Nn1N/8/K7

#2

7 + 4

15351 SCPF/BCPS Black Books 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qe6#
    • 1...Bg7
      • 2.Qe6#
    • 1...Se1
      • 2.Bd4#
    • 1...Sg1
      • 2.Bd4#
    • 1...Sd2
      • 2.Bd4#
    • 1...Sh2
      • 2.Bd4#
    • 1...Sd4
      • 2.Bxd4#
    • 1...Sh4
      • 2.Bd4#
    • 1...Se5
      • 2.Bd8#
    • 1...Sg5
      • 2.Bd4#
  • Keys
    • 1.Qh7!
      • 1...Ke5
        • 2.Qe7#
      • 1...Bg7
        • 2.Qf5#
      • 1...Bg4
        • 2.Sxg4#
      • 1...Bg6
        • 2.Qe7#
      • 1...Bf7
        • 2.Sg4#
      • 1...Be8
        • 2.Sg4#
      • 1...Se1
        • 2.Bd4#
      • 1...Sg1
        • 2.Bd4#
      • 1...Sd2
        • 2.Bd4#
      • 1...Sh2
        • 2.Bd4#
      • 1...Sd4
        • 2.Bxd4#
      • 1...Sh4
        • 2.Bd4#
      • 1...Se5
        • 2.Bd8#
      • 1...Sg5
        • 2.Bd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAR1(G)
    • B(d);SBLOCK::QAR1(G)
    • S(a);N_GUARD::B(E)
    • S(a);N_GUARD::B(E),XS(a)
    • S(a);SBLOCK::B(E)
  • Actual
    • Q(G);
    • Vars
      • K(c);S_FLIGHT::QAR2(G)
      • B(d);SBLOCK::QAR1(G)
      • B(b);N_GUARD::S(B),XB(b)
      • B(b);SBLOCK::QAB1(G)
      • B(b);N_GUARD::S(B)
      • S(a);N_GUARD::B(E)
      • S(a);N_GUARD::B(E),XS(a)
      • S(a);SBLOCK::B(E)
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