MESON Chess Problem Database

Problem Display
PID: 6649 (3N4/8/3K1kpQ/8/8/4P3/8/8 w - - 0 1)

Wolf, E

Magyar Sakkvilag, 1932

3N4/8/3K1kpQ/8/8/4P3/8/8

#2

4 + 2

273 Mat Plus 1995

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Qf4#
  • Tries
    • 1.Kc5?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Ke7!
    • 1.Kd5?
      • 1...Kf5
        • 2.Qf4#
      • 1...Ke7!
    • 1.Kc6?
      • 1...Ke5
        • 2.Qf4#
      • 1...Kf5
        • 2.Qf4#
      • 1...Ke7!
    • 1.Kd7?
      • 1...Kf5
        • 2.Qf4#
      • 1...Ke5!
    • 1.Sc6?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf7!
    • 1.Sb7?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf7!
    • 1.Sf7?
      • 1...Kf5
        • 2.Qf4#
      • 1...Kxf7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qf4#
        • 2.Qf8#
      • 1...Kf5
        • 2.Qf4#
      • 1...Kf7
        • 2.Qf8#

FEATURES

  • Static
    • TYPE = BLOCK_THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAB1(C)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAB1(C)
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • S(D);
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT,XS(D)
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);N_SPINP(b),P-FLIGHT::QAR1(C)
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