MESON Chess Problem Database

Problem Display
PID: 2150 (5QB1/3k1P2/8/1K6/8/8/8/8 w - - 0 1)

Burbach, Johannes Jacob

Jobez Nieuws, 1948

5QB1/3k1P2/8/1K6/8/8/8/8

#2

4 + 1

5454 Near Snap 2013
3713 Snap 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Qe7+?
      • 1...Kc8
        • 2.f8Q#
        • 2.f8R#
      • 1...Kxe7!
  • Keys
    • 1.Qg7!
      • threat
        • 2.f8Q#
      • 1...Kd6
        • 2.f8Q#
        • 2.f8B#
      • 1...Ke6
        • 2.f8Q#
      • 1...Kc7
        • 2.f8Q#
      • 1...Ke7
        • 2.f8Q#
      • 1...Kc8
        • 2.f8Q#
        • 2.f8R#
      • 1...Kd8
        • 2.f8Q#
        • 2.f8R#

Anticipated by 170467(1944)

This anticipates 201747(1971), 858(1982)

This is after 9312

This is a version.

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::P=Q
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
  • Actual
    • Q(C);
    • Threat
      • P=Q
    • Vars
      • K(a);P-FLIGHT::P=Q
      • K(a);S_FLIGHT::P=Q
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