MESON Chess Problem Database

Problem Display
PID: 23122 (5b1K/3p4/6k1/6p1/3Q2B1/8/8/8 w - - 0 1)

Lincoln, Robert A

Fun with Chess Miniatures, 1996

5b1K/3p4/6k1/6p1/3Q2B1/8/8/8

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Kh6
      • 2.Qf6#
    • 1...Ba3
      • 2.Qg7#
    • 1...Bb4
      • 2.Qg7#
    • 1...Bc5
      • 2.Qg7#
    • 1...Bd6
      • 2.Qg7#
    • 1...Be7
      • 2.Qg7#
    • 1...Bg7+
      • 2.Qxg7#
  • Tries
    • 1.Qd6+?
      • 1...Kf7
        • 2.Bh5#
      • 1...Bxd6!
    • 1.Qxd7?
      • threat
        • 2.Qe6#
      • 1...Bg7+
        • 2.Qxg7#
      • 1...Kf6
        • 2.Qe6#
      • 1...Kh6
        • 2.Qe6#
        • 2.Qh7#
      • 1...Be7!
  • Keys
    • 1.Qe5!
      • 1...Bg7+
        • 2.Qxg7#
      • 1...Kh6
        • 2.Qf6#
      • 1...Kf7
        • 2.Bh5#
      • 1...Bh6
        • 2.Qf5#
      • 1...Ba3
        • 2.Qg7#
      • 1...Bb4
        • 2.Qg7#
      • 1...Bc5
        • 2.Qg7#
      • 1...Bd6
        • 2.Qg7#
      • 1...Be7
        • 2.Qg7#
      • 1...d5
        • 2.Qe6#
      • 1...d6
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(A)
    • B(d);N_GUARD::QAR1(A)
    • B(d);CHECK,N_GUARD::QAR1(A),XB(d)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • B(d);XQ(A)
    • Try
      • Q(A);XP(c)
      • Threat
        • QAR2(A)
      • Vars
        • B(d);CHECK,N_GUARD::QAR1(A),XB(d)
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • B(d);
  • Actual
    • Q(A);
    • Vars
      • B(d);CHECK,N_GUARD::QAR1(A),XB(d)
      • K(b);P-FLIGHT::QAR2(A)
      • K(b);S_FLIGHT::B(B)
      • B(d);SBLOCK::QAB1(A)
      • B(d);N_GUARD::QAR1(A)
      • P(c);N_GUARD::QAR2(A)
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