MESON Chess Problem Database

Problem Display
PID: 23106 (8/8/7Q/8/4KPk1/7N/8/4bN2 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

8/8/7Q/8/4KPk1/7N/8/4bN2

#2

5 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Bd2
      • 2.Sf2#
    • 1...Bf2
      • 2.Sxf2#
    • 1...Bc3
      • 2.Sf2#
    • 1...Bg3
      • 2.Se3#
    • 1...Bb4
      • 2.Sf2#
    • 1...Ba5
      • 2.Sf2#
  • Tries
    • 1.Qh8?
      • 1...Bd2
        • 2.Sf2#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bc3
        • 2.Sf2#
      • 1...Bg3
        • 2.Se3#
      • 1...Bb4
        • 2.Sf2#
      • 1...Ba5
        • 2.Sf2#
      • 1...Bh4!
    • 1.f5?
      • 1...Bd2
        • 2.Sf2#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bc3
        • 2.Sf2#
      • 1...Bg3
        • 2.Se3#
      • 1...Bb4
        • 2.Sf2#
      • 1...Ba5
        • 2.Sf2#
      • 1...Bh4!
  • Keys
    • 1.Qh7!
      • 1...Bh4
        • 2.Qf5#
      • 1...Bd2
        • 2.Sf2#
      • 1...Bf2
        • 2.Sxf2#
      • 1...Bc3
        • 2.Sf2#
      • 1...Bg3
        • 2.Se3#
      • 1...Bb4
        • 2.Sf2#
      • 1...Ba5
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(B),XB(a)
    • B(a);SBLOCK::S(A)
  • Tries
    • Try
      • Q(E);
      • Vars
        • B(a);N_GUARD::S(B)
        • B(a);N_GUARD::S(B),XB(a)
        • B(a);SBLOCK::S(A)
      • Refutation
        • B(a);
    • Try
      • P(D);
      • Vars
        • B(a);N_GUARD::S(B)
        • B(a);N_GUARD::S(B),XB(a)
        • B(a);SBLOCK::S(A)
      • Refutation
        • B(a);
  • Actual
    • Q(E);
    • Vars
      • B(a);SBLOCK::QAB1(E)
      • B(a);N_GUARD::S(B)
      • B(a);N_GUARD::S(B),XB(a)
      • B(a);SBLOCK::S(A)
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