MESON Chess Problem Database

Problem Display
PID: 53817 (8/8/5B2/2QKNk2/8/5P2/8/8 w - - 0 1)

Downer, GR

Chess, 1942

8/8/5B2/2QKNk2/8/5P2/8/8

#2

5 + 1

5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg1?
      • threat
        • 2.Qg5#
      • 1...Kf4
        • 2.Qg5#
      • 1...Kxf6!
  • Keys
    • 1.f4!
      • 1...Kxf4
        • 2.Qf2#
      • 1...Kxf6
        • 2.Qf8#

Anticipated by 207974(1927)

This anticipates 77768(1991)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR1(B)
      • Vars
        • K(a);P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XB(E)
  • Actual
    • P(A);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XP(A)::QAR2(B)
      • K(a);OGATEB,P-FLIGHT,XB(E)::QAR2(B)
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