MESON Chess Problem Database

Problem Display
PID: 278203 (8/8/8/3p2p1/N5Pp/3Nkp1R/p1B5/Q4K2 w - - 0 1)

Janevski, Zivko

Stella Polaris, 1972

8/8/8/3p2p1/N5Pp/3Nkp1R/p1B5/Q4K2

#2

7 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kd2
      • 2.Qc1#
    • 1...Ke4
      • 2.Qe5#
    • 1...d4
      • 2.Qe1#
  • Tries
    • 1.Ke1?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...d4!
    • 1.Kg1?
      • 1...Ke2
        • 2.Qe1#
      • 1...Ke4
        • 2.Qe5#
      • 1...d4
        • 2.Qe1#
      • 1...Kd2!
    • 1.Se1?
      • 1...Kf4
        • 2.Qd4#
      • 1...d4
        • 2.Qc1#
      • 1...Kd2!
    • 1.Sf2?
      • 1...Kf4
        • 2.Qd4#
      • 1...d4
        • 2.Qc1#
      • 1...Kd2!
    • 1.Sf4?
      • 1...Kxf4
        • 2.Qd4#
      • 1...gxf4
        • 2.Qc3#
      • 1...d4
        • 2.Qc1#
      • 1...Kd2!
    • 1.Sdc5?
      • 1...Kf4
        • 2.Qd4#
      • 1...d4
        • 2.Qc1#
      • 1...Kd2!
    • 1.Se5?
      • 1...Kf4
        • 2.Rxf3#
        • 2.Qd4#
      • 1...d4
        • 2.Qc1#
      • 1...Kd2!
    • 1.Sac5?
      • 1...d4
        • 2.Qc1#
        • 2.Qe1#
      • 1...Kd2!
    • 1.Sb6?
      • 1...Ke4
        • 2.Qe5#
      • 1...d4
        • 2.Qe1#
      • 1...Kd2!
    • 1.Rh2?
      • threat
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...d4
        • 2.Qe1#
      • 1...f2!
    • 1.Rxf3+?
      • 1...Kd2
        • 2.Qc3#
        • 2.Qc1#
        • 2.Qd1#
      • 1...Ke4
        • 2.Se1#
        • 2.Se5#
      • 1...Kxf3!
    • 1.Qd4+?
      • 1...Kd2
        • 2.Qf2#
      • 1...Kxd4!
  • Keys
    • 1.Sb4!
      • 1...Kd2
        • 2.Qe1#
      • 1...Kf4
        • 2.Qd4#
      • 1...d4
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAB1(A)
    • K(b);N_GUARD,N_SPINP(c),P-FLIGHT::QAR1(A)
    • P(e);SBLOCK::QAR2(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAR2(A)
      • Vars
        • K(b);N_SPINP(c),P-FLIGHT::QAR1(A)
      • Refutation
        • P(e);
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(b);N_GUARD,N_SPINP(c),P-FLIGHT::QAR1(A)
        • P(e);SBLOCK::QAR2(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAR2(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAR2(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,N_SPINP(c),S_FLIGHT,XS(D)::QAR2(A)
        • P(f);SBLOCK,XS(D)::QAR2(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAR2(A)
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(D);
      • Vars
        • P(e);SBLOCK::QAB(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(F);
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(b);N_GUARD,N_SPINP(c),P-FLIGHT::QAR1(A)
        • P(e);SBLOCK::QAR2(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • R(E);N_PINP(c)
      • Threat
        • QAR2(A)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • P(e);SBLOCK::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • R(E);CHECK,XP(c)
      • Refutation
        • K(b);P-FLIGHT,XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);N_SPINP(c),OGATE,S_FLIGHT::QAR2(A)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT,XQ(A)
  • Actual
    • S(D);
    • Vars
      • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAB1(A)
      • K(b);N_GUARD,N_SPINP(c),S_FLIGHT::QAR2(A)
      • P(e);SBLOCK::QAB(A)
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