MESON Chess Problem Database

Problem Display
PID: 39770 (1K6/3p4/2k5/6Q1/n3N3/8/8/6B1 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

1K6/3p4/2k5/6Q1/n3N3/8/8/6B1

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qc5#
    • 1...Sc3
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qc5#
  • Tries
    • 1.Sd6?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Kxd6!
    • 1.Sf6?
      • threat
        • 2.Qd5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qxd5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...Kd6!
    • 1.Qa5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qxa4#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...d6!
    • 1.Qe5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qe8#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...d6!
    • 1.Qh5?
      • 1...Sc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qe8#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sb6
        • 2.Qc5#
      • 1...d6!
  • Keys
    • 1.Sc3!
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qf6#
      • 1...Sxc3
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...d5
        • 2.Qxd5#
      • 1...Sb6
        • 2.Qc5#
      • 1...d6
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD::QAR1(C)
    • S(a);N_GUARD::QAR1(C),XS(a)
  • Tries
    • Try
      • S(B);
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT,XS(B)
    • Try
      • S(B);
      • Threat
        • QAB1(C)
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
        • P(c);::QAB1(C),XP(c)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
        • P(c);SBLOCK::QAB(C),XS(a)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
        • P(c);OGATEB,SBLOCK::QAB(C)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);
      • Vars
        • S(a);N_GUARD::QAR1(C),XS(a)
        • P(c);OGATEB,SBLOCK::QAB(C)
        • S(a);N_GUARD::QAR1(C)
      • Refutation
        • P(c);
  • Actual
    • S(B);
    • Threat
      • QAB1(C)
    • Vars
      • K(b);P-FLIGHT::QAR2(C)
      • S(a);N_GUARD,XS(B)::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
      • P(c);::QAB1(C),XP(c)
      • S(a);N_GUARD::QAR1(C)
      • P(c);SBLOCK::QAB1(C)
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