MESON Chess Problem Database

Problem Display
PID: 75185 (8/2K5/8/3kN3/6N1/4P2Q/8/5B2 w - - 0 1)

Chepizhni, Viktor Ivanovich

HM., Schach-Magazin, 1991

8/2K5/8/3kN3/6N1/4P2Q/8/5B2

#2

6 + 1

6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qf3#
  • Tries
    • 1.Kd7?
      • 1...Ke4
        • 2.Qf3#
      • 1...Kc5!
    • 1.Sc6?
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc5
        • 2.Qh5#
      • 1...Ke6!
    • 1.Sd7?
      • threat
        • 2.Sgf6#
      • 1...Ke4
        • 2.Sgf6#
      • 1...Ke6!
    • 1.Bc4+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qh7#
      • 1...Kc5!
    • 1.Qf3+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Kc5!
    • 1.Qh6?
      • threat
        • 2.Qc6#
      • 1...Kc5
        • 2.Qd6#
      • 1...Ke4!
    • 1.Qh7?
      • 1...Ke6
        • 2.Bc4#
        • 2.Qd7#
        • 2.Qf7#
      • 1...Kc5!
  • Keys
    • 1.Qh5!
      • 1...Ke4
        • 2.Bg2#
      • 1...Kc5
        • 2.Sc6#
      • 1...Ke6
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB1(C)
  • Tries
    • Try
      • K(F);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::S(D)
        • K(a);P-FLIGHT::QAR(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Threat
        • S(D)
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(a);P-FLIGHT::QAB1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);P-FLIGHT::QAR(C)+S(E)
      • K(a);S_FLIGHT::QAB1(C)
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