MESON Chess Problem Database

Problem Display
PID: 210914 (4K3/8/8/2pkBp2/P1N5/5PQp/2P4P/8 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1989

4K3/8/8/2pkBp2/P1N5/5PQp/2P4P/8

#2

8 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qg8#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Se3#
        • 2.Sb6#
        • 2.Qg8#
      • 1...f4
        • 2.Qg8#
      • 1...Kxc4!
  • Keys
    • 1.f4!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kc6
        • 2.Qf3#
      • 1...Ke6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT::QAB(D)
  • Tries
    • Try
      • K(H);S_FLIGHT
      • Threat
        • DUALS(3)
      • Vars
        • P(d);::QAB(D)
      • Refutation
        • K(c);S_FLIGHT,XS(F)
  • Actual
    • P(C);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::QAB1(D)
      • K(c);S_FLIGHT::QAB1(D)
      • K(c);S_FLIGHT::QAB(D)
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