MESON Chess Problem Database

Problem Display
PID: 237410 (8/2Q5/2P5/2k5/8/NB3K2/2P5/8 w - - 0 1)

Labai, Zoltan

Hlas l'udu, 1988

8/2Q5/2P5/2k5/8/NB3K2/2P5/8

#2

6 + 1

15148 Sadier Collection 2021
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Kf4?
      • 1...Kd4
        • 2.Qe5#
      • 1...Kb4!
    • 1.Sb1?
      • 1...Kb4
        • 2.Qb6#
      • 1...Kd4
        • 2.Qd6#
      • 1...Kb5!
  • Keys
    • 1.Sc4!
      • 1...Kb4
        • 2.Qa5#
      • 1...Kd4
        • 2.Qe5#
      • 1...Kb5
        • 2.Qb6#
      • 1...Kd5
        • 2.Qd6#

Anticipated by 11855(1972), 11858(1972), 103735(1987)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);
      • Vars
        • K(a);S_FLIGHT::QAR2(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(B);
    • Vars
      • K(a);S_FLIGHT::QAB1(F)
      • K(a);P-FLIGHT::QAR1(F)
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