MESON Chess Problem Database

Problem Display
PID: 11763 (4N3/1Q3N2/8/5k2/1nB5/6K1/8/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

Skakbladet, 1971

4N3/1Q3N2/8/5k2/1nB5/6K1/8/8

#2

5 + 2

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Qb1#
    • 1...Sa6
      • 2.Qb1#
    • 1...Sc6
      • 2.Qb1#
  • Tries
    • 1.Qc6?
      • threat
        • 2.Sg7#
        • 2.Qe6#
      • 1...Sd5
        • 2.Bd3#
      • 1...Sxc6!
    • 1.Qe7?
      • threat
        • 2.Qe6#
      • 1...Sd5
        • 2.Bd3#
      • 1...Kg6!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Qe6#
      • 1...Ke4
        • 2.Sed6#
      • 1...Sc6
        • 2.Qb1#
      • 1...Sd5
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • S(a);OGATE::QAB(C)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD::B(B)
      • Refutation
        • S(a);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);N_GUARD::B(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);S_FLIGHT::S(E)
      • S(a);OGATE::QAB(C)
      • S(a);N_GUARD::B(B)
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