MESON Chess Problem Database

Problem Display
PID: 23798 (5b2/3p4/1K1Pk1B1/6Q1/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Smena, 1996

5b2/3p4/1K1Pk1B1/6Q1/8/8/8/8

#2

4 + 3

2786 More Fun with Chess Miniatures 2000
5454 Near Snap 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Bf7+?
      • 1...Kxd6
        • 2.Qf6#
        • 2.Qc5#
      • 1...Kxf7!
    • 1.Qf4?
      • threat
        • 2.Bf7#
      • 1...Kd5
        • 2.Bf7#
      • 1...Bxd6!
  • Keys
    • 1.Be4!
      • 1...Kxd6
        • 2.Qf6#
      • 1...Kf7
        • 2.Qg6#
      • 1...Bxd6
        • 2.Bd5#
      • 1...Bh6
        • 2.Qe7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Bg7
        • 2.Qe7#

Anticipated by 175411(1899)

This anticipates 68177(1999)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(D);CHECK
      • Refutation
        • K(a);S_FLIGHT,XB(D)
    • Try
      • Q(A);
      • Threat
        • B(D)
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • B(c);XP(C)
  • Actual
    • B(D);
    • Vars
      • K(a);P-FLIGHT,XP(C)::QAR2(A)
      • K(a);S_FLIGHT::QAB1(A)
      • B(c);SBLOCK,XP(C)::B(D)
      • B(c);N_GUARD::QAR1(A)
      • B(c);N_GUARD::QAR1(A),XB(c)
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