MESON Chess Problem Database

Problem Display
PID: 285034 (8/8/1B6/Pk3B2/7Q/8/1K6/8 w - - 0 1)

Fiedler, Frank

Gaudium, 2004

8/8/1B6/Pk3B2/7Q/8/1K6/8

#2

5 + 1

5454 Near Snap 2026

SOLUTION

  • SOUND
  • Tries
    • 1.Qa4+?
      • 1...Ka6
        • 2.Bc8#
      • 1...Kxa4!
    • 1.Qd4?
      • 1...Kc6
        • 2.Qd7#
      • 1...Ka6!
  • Keys
    • 1.Qe7!
      • 1...Ka4
        • 2.Bd7#
      • 1...Kc4
        • 2.Qc5#
      • 1...Ka6
        • 2.Bd3#
      • 1...Kc6
        • 2.Qd7#

Anticipated by 282485(1989)

This anticipates 262909(2008), 266069(2017), 268836(2022)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);N_GUARD,S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(B);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::B(D)
      • K(a);N_GUARD,S_FLIGHT::QAR1(B)
      • K(a);N_GUARD,S_FLIGHT::QAB1(B)
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