MESON Chess Problem Database

Problem Display
PID: 248233 (8/7b/8/2pp2K1/2n1kB2/3pP3/8/Q5N1 w - - 0 1)

Blikeng, Bjarne

Thema Danicum, 1993

8/7b/8/2pp2K1/2n1kB2/3pP3/8/Q5N1

#2

5 + 6

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Qe5#
    • 1...Sa3
      • 2.Qe5#
    • 1...Sxe3
      • 2.Qe5#
    • 1...Sa5
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...Sb6
      • 2.Qe5#
    • 1...Sd6
      • 2.Qe5#
    • 1...d2
      • 2.Qb1#
    • 1...d4
      • 2.Qa8#
  • Tries
    • 1.Qb2?
      • threat
        • 2.Qg2#
      • 1...Sxe3
        • 2.Qe5#
      • 1...d2
        • 2.Qb1#
        • 2.Qc2#
      • 1...Sd2
        • 2.Qe5#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sxb2!
    • 1.Qf6?
      • 1...Sxe3
        • 2.Qe5#
      • 1...d4
        • 2.Qc6#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bg8
        • 2.Qf5#
        • 2.Qg6#
      • 1...Sb2
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...Sd2
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...Sa3
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...Sa5
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sb6
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...Sd6
        • 2.Qe5#
        • 2.Qe7#
        • 2.Qe6#
      • 1...d2!
    • 1.Qg7?
      • threat
        • 2.Qxh7#
      • 1...Sxe3
        • 2.Qe5#
      • 1...d4
        • 2.Qb7#
      • 1...Bg6
        • 2.Qxg6#
      • 1...Bg8
        • 2.Qg6#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qe5#
        • 2.Qe7#
      • 1...Bf5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qxh7#
      • 1...Sxe3
        • 2.Qe5#
      • 1...d4
        • 2.Qa8#
      • 1...Bf5
        • 2.Qh1#
      • 1...Bg6
        • 2.Qh1#
      • 1...Bg8
        • 2.Qh1#
      • 1...Se5
        • 2.Qxe5#
      • 1...Sd6
        • 2.Qe5#

This is a version

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(b);N_GUARD::QAR1(A)
    • S(b);N_GUARD,XP(C)::QAR1(A)
    • S(b);N_GUARD::QAR1(A),XS(b)
    • P(a);OGATEB::QAB(A)
    • P(e);OGATEB::QAB(A)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A)
      • Vars
        • S(b);N_GUARD,XP(C)::QAR1(A)
        • S(b);N_GUARD::QAR1(A)
        • S(b);N_GUARD::QAR1(A),XS(b)
      • Refutation
        • S(b);XQ(A)
    • Try
      • Q(A);
      • Vars
        • S(b);N_GUARD,XP(C)::QAR1(A)
        • P(e);OGATEB::QAB(A)
        • B(f);N_GUARD::QAB1(A),XB(f)
        • B(f);N_GUARD::QAB(A),XB(f)
        • S(b);N_GUARD::QAR1(A),XS(b)
      • Refutation
        • P(a);
    • Try
      • Q(A);
      • Threat
        • QAB(A),XB(f)
      • Vars
        • S(b);N_GUARD,XP(C)::QAR1(A)
        • P(e);OGATEB::QAB(A)
        • B(f);N_GUARD::QAB(A),XB(f)
        • B(f);N_GUARD::QAB(A)
        • S(b);N_GUARD::QAR1(A),XS(b)
      • Refutation
        • B(f);
  • Actual
    • Q(A);
    • Threat
      • QAB(A),XB(f)
    • Vars
      • S(b);N_GUARD,XP(C)::QAR1(A)
      • P(e);OGATEB::QAB(A)
      • B(f);OGATE::QAB(A)
      • S(b);N_GUARD::QAR1(A),XS(b)
      • S(b);N_GUARD::QAR1(A)
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