MESON Chess Problem Database

Problem Display
PID: 254901 (4Q3/4P3/8/8/8/4k3/1N5B/4K3 w - - 0 1)

Zheltukhov, Viktor Ivanovich

Zadachi i Etyudi, 2006

4Q3/4P3/8/8/8/4k3/1N5B/4K3

#2

5 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qh5?
      • 1...Kd4
        • 2.Qe5#
      • 1...Ke4!
    • 1.Qd7?
      • threat
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kf3!
    • 1.Qd8?
      • threat
        • 2.Qd3#
      • 1...Ke4
        • 2.Qd3#
      • 1...Kf3!
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qd3#
      • 1...Kf3
        • 2.Qe2#
      • 1...Kd4
        • 2.Qe5#
      • 1...Ke4
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT::QAB1(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(E);
    • Threat
      • QAR1(E)
    • Vars
      • K(a);N_GUARD,P-FLIGHT::QAB1(E)
      • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • K(a);P-FLIGHT::QAB1(E)
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