MESON Chess Problem Database

Problem Display
PID: 87389 (8/1B4B1/6N1/2kP4/K7/8/8/7Q w - - 0 1)

Vovnejko, Viktor Ivanovich

Kievskie novosti, 1997-1999

8/1B4B1/6N1/2kP4/K7/8/8/7Q

#2

6 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qb4#
      • 1...Kd6
        • 2.Qe7#
      • 1...Kb6!
    • 1.Qb1?
      • threat
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc2#
        • 2.Qb5#
      • 1...Kd6!
    • 1.Qc1+?
      • 1...Kd6
        • 2.Qc6#
      • 1...Kb6!
    • 1.Qe1?
      • threat
        • 2.Qb4#
      • 1...Kc4
        • 2.Qc3#
      • 1...Kd6
        • 2.Qe7#
      • 1...Kb6!
    • 1.Qg1+?
      • 1...Kc4
        • 2.Qd4#
      • 1...Kd6!
    • 1.Qh2?
      • threat
        • 2.Qc7#
      • 1...Kc4
        • 2.Qc2#
      • 1...Kb6!
    • 1.Qh4?
      • threat
        • 2.Qb4#
      • 1...Kd6
        • 2.Qe7#
      • 1...Kb6!
    • 1.Qh7?
      • 1...Kb6
        • 2.Bd4#
      • 1...Kd6
        • 2.Bf8#
      • 1...Kc4!
  • Keys
    • 1.d6!
      • threat
        • 2.Qc6#
      • 1...Kc4
        • 2.Qd5#
      • 1...Kb6
        • 2.Bd4#
      • 1...Kxd6
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::B(F)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • P(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::B(F)
      • K(a);S_FLIGHT,XP(C)::QAR1(A)
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