MESON Chess Problem Database

Problem Display
PID: 38012 (8/Q6N/4k3/8/1K4N1/8/7B/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/Q6N/4k3/8/1K4N1/8/7B/8

#2

5 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5+?
      • 1...Kd5
        • 2.Qc5#
        • 2.Qd7#
      • 1...Kf5!
    • 1.Qc7?
      • 1...Kd5
        • 2.Qc4#
      • 1...Kf5!
  • Keys
    • 1.Sf2!
      • 1...Kd5
        • 2.Qd7#
      • 1...Kf5
        • 2.Qf7#

Anticipated by 42619(1979), 15149(1980), 245192(1995)

This anticipates 199904(2017)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(D)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAR2(D)
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