MESON Chess Problem Database

Problem Display
PID: 17784 (5N2/8/8/2pkp3/N1Rb4/8/K6B/5Q2 w - - 0 1)

Nikolic, Predrag

3rd Prize, Sah, 1949

5N2/8/8/2pkp3/N1Rb4/8/K6B/5Q2

#2

6 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qf5?
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Ba1
        • 2.Qe6#
      • 1...Bg1
        • 2.Qe6#
      • 1...Bb2
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe6#
      • 1...Bc3
        • 2.Qe6#
      • 1...Be3
        • 2.Qe6#
      • 1...Kxc4!
    • 1.Qf7+?
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Ke4!
  • Keys
    • 1.Qh3!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Qd7#
      • 1...Kd6
        • 2.Qd7#
      • 1...Ba1
        • 2.Qe6#
      • 1...Bg1
        • 2.Qe6#
      • 1...Bb2
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe6#
      • 1...Bc3
        • 2.Qe6#
      • 1...Be3
        • 2.Qe6#
      • 1...e4
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);P_PINP(d)
      • Vars
        • K(c);N_SPINP(d),P_SPINP(b),S_FLIGHT::QAB1(A)
        • K(c);P-FLIGHT::QAR1(A)
        • B(a);::QAB1(A)
      • Refutation
        • K(c);N_SPINP(d),S_FLIGHT,XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAB1(A)
        • K(c);P-FLIGHT,P_SPINP(d)::QAR1(A)
      • Refutation
        • K(c);P_SPINB(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(E)::QAB1(A)
      • K(c);P_SPINB(a),S_FLIGHT::S(D)
      • K(c);P_SPINP(b),S_FLIGHT::QAB1(A)
      • K(c);P-FLIGHT,P_SPINP(d)::QAR1(A)
      • B(a);::QAB1(A)
      • P(d);::QAB1(A)
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