MESON Chess Problem Database

Problem Display
PID: 69150 (8/4p3/4K3/7Q/P1NP4/3kP3/3P4/N7 w - - 0 1)

Nesic, Milivoj S

Beosei Gjsaz, 1963

8/4p3/4K3/7Q/P1NP4/3kP3/3P4/N7

#2

8 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Qb5#
    • 1...Ke4
      • 2.Qf5#
  • Tries
    • 1.Kxe7?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke4!
    • 1.Sc2?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxc2!
    • 1.Sb3?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Sc5#
        • 2.Qf5#
      • 1...Kc2!
    • 1.Sb2+?
      • 1...Ke4
        • 2.Qg4#
        • 2.Qh1#
        • 2.Qd5#
        • 2.Qf5#
      • 1...Kxd2!
    • 1.Sa3?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxd2!
    • 1.Sa5?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxd2!
    • 1.Se5+?
      • 1...Ke4
        • 2.Qf3#
        • 2.Qg4#
        • 2.Qg6#
        • 2.Qh1#
        • 2.Qh4#
        • 2.Qf5#
        • 2.Qh7#
      • 1...Kxd2!
    • 1.Sb6?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxd2!
    • 1.Qe2+?
      • 1...Ke4
        • 2.d3#
      • 1...Kxe2!
    • 1.Qa5?
      • 1...Kxc4
        • 2.Qc3#
        • 2.Qb5#
      • 1...Ke4
        • 2.Qf5#
      • 1...Ke2!
    • 1.Qb5?
      • 1...Ke4
        • 2.Qf5#
      • 1...Ke2!
    • 1.Qc5?
      • 1...Ke4
        • 2.Qf5#
      • 1...Ke2!
    • 1.Qe5?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke2!
    • 1.Qf5+?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke2!
    • 1.Qg5?
      • 1...Kxc4
        • 2.Qb5#
      • 1...Ke4
        • 2.Qf5#
      • 1...Ke2!
    • 1.a5?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxc4!
    • 1.d5?
      • 1...Ke4
        • 2.Qf5#
      • 1...Kxc4!
  • Keys
    • 1.Qd1!
      • 1...Kxc4
        • 2.Qb3#
      • 1...Ke4
        • 2.d3#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
    • K(a);S_FLIGHT::QAB1(G)
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(b)
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT,XS(A)
    • Try
      • S(A);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • S(E);CHECK
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);P-FLIGHT,XP(B)
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::P(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(G)
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);CHECK
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(G);
      • Vars
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(G)
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
    • Try
      • P(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(G)
      • Refutation
        • K(a);S_FLIGHT,XS(E)
  • Actual
    • Q(G);
    • Vars
      • K(a);S_FLIGHT,XS(E)::QAB1(G)
      • K(a);OGATE,S_FLIGHT::P(B)
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