MESON Chess Problem Database

Problem Display
PID: 49080 (8/8/4p3/4Q3/p1k5/P4N2/1P2PPp1/R3KnN1 w Q - 0 1)

Gruber, Bratoljub

Mat Plus, 1995

8/8/4p3/4Q3/p1k5/P4N2/1P2PPp1/R3KnN1

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kb3
      • 2.Qc3#
    • 1...Sd2
      • 2.Sxd2#
    • 1...Sh2
      • 2.Sd2#
    • 1...Se3
      • 2.Sd2#
    • 1...Sg3
      • 2.Sd2#
  • Tries
    • 1.Kd1?
      • 1...Kb3
        • 2.Qc3#
        • 2.Qb5#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Se3+!
    • 1.Rb1?
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Kb3!
    • 1.Rd1?
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Kb3!
    • 1.Ra2?
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Kb3!
    • 1.Qd4+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kb5!
    • 1.Qc5+?
      • 1...Kb3
        • 2.Qc3#
      • 1...Kxc5!
    • 1.b3+?
      • 1...axb3
        • 2.Rc1#
      • 1...Kxb3!
    • 1.b4?
      • 1...axb4 ep
        • 2.Rc1#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#
      • 1...Kb3!
  • Keys
    • 1.0-0-0!
      • 1...Kb3
        • 2.Qxe6#
      • 1...Sd2
        • 2.Sxd2#
      • 1...Sh2
        • 2.Sd2#
      • 1...Se3
        • 2.Sd2#
      • 1...Sg3
        • 2.Sd2#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);S_FLIGHT::QAR1(I)
    • S(a);N_GUARD::S(H),XS(a)
    • S(a);N_GUARD::S(H)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • S(a);N_GUARD::S(H),XS(a)
        • S(a);N_GUARD::S(H)
      • Refutation
        • S(a);CHECK
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::S(H),XS(a)
        • S(a);N_GUARD::S(H)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::S(H),XS(a)
        • S(a);N_GUARD::S(H)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • R(A);
      • Vars
        • S(a);N_GUARD::S(H),XS(a)
        • S(a);N_GUARD::S(H)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(I)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAR1(I)
      • Refutation
        • K(d);P-FLIGHT,XQ(I)
    • Try
      • P(D);CHECK
      • Vars
        • P(c);SBLOCK,XP(D)::R(A)
      • Refutation
        • K(d);S_FLIGHT,XP(D)
    • Try
      • P(D);
      • Vars
        • P(c);EP,XP(D)::R(A)
        • S(a);N_GUARD::S(H),XS(a)
        • S(a);N_GUARD::S(H)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • K(B);0-0-0
    • Vars
      • K(d);S_FLIGHT::QAB(I),XP(e)
      • S(a);N_GUARD::S(H),XS(a)
      • S(a);N_GUARD::S(H)
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