MESON Chess Problem Database

Problem Display
PID: 230826 (3Nb3/5r2/3p1p1q/Bpkn1p2/7p/1B1p4/2N5/5QbK w - - 0 1)

Ianovcic, Anatole Felix

Stella Polaris, 1968

3Nb3/5r2/3p1p1q/Bpkn1p2/7p/1B1p4/2N5/5QbK

#2

6 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Bc6
      • 2.Se6#
    • 1...Sf4
      • 2.Qxg1#
    • 1...Sb6
      • 2.Bb4#
  • Tries
    • 1.Qxd3?
      • threat
        • 2.Qxd5#
      • 1...Bd4
        • 2.Qxd4#
      • 1...Bc6
        • 2.Se6#
      • 1...Sc3
        • 2.Qxc3#
      • 1...Se3
        • 2.Qd4#
      • 1...Sb4
        • 2.Qc3#
      • 1...Sf4
        • 2.Qc3#
      • 1...Sb6
        • 2.Bb4#
      • 1...Sc7
        • 2.Qc3#
      • 1...Se7
        • 2.Qc3#
      • 1...Qd2!
    • 1.Qf3?
      • threat
        • 2.Qxd5#
      • 1...Bc6
        • 2.Se6#
      • 1...Sc3
        • 2.Se6#
      • 1...Se3
        • 2.Se6#
      • 1...Sb4
        • 2.Se6#
      • 1...Sb6
        • 2.Se6#
        • 2.Bb4#
      • 1...Sc7
        • 2.Sb7#
      • 1...Se7
        • 2.Se6#
        • 2.Sb7#
      • 1...Sf4!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Qxd5#
      • 1...Bc6
        • 2.Se6#
      • 1...Sc3
        • 2.Se6#
      • 1...Se3
        • 2.Se6#
      • 1...Sb4
        • 2.Se6#
      • 1...Sf4
        • 2.Qxg1#
      • 1...Sb6
        • 2.Se6#
        • 2.Bb4#
      • 1...Sc7
        • 2.Sb7#
      • 1...Se7
        • 2.Se6#
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(l);SBLOCK::S(F)
    • S(f);N_GUARD,S_CUTQ(j)::QAB(A),XB(a)
    • S(f);N_GUARD,SBLOCK::B(E)
  • Tries
    • Try
      • Q(A);XP(b)
      • Threat
        • QAR1(A),XS(f)
      • Vars
        • B(a);N_GUARD::QAB1(A),XB(a)
        • B(l);SBLOCK::S(F)
        • S(f);N_GUARD::QAR2(A),XS(f)
        • S(f);S_CUTB(a)::QAB1(A)
        • S(f);N_GUARD::QAR2(A)
        • S(f);N_GUARD,SBLOCK::B(E)
      • Refutation
        • Q(j);
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XS(f)
      • Vars
        • B(l);SBLOCK::S(F)
        • S(f);::S(F)
        • S(f);S_CUTR(k)::S(F)
      • Refutation
        • S(f);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XS(f)
    • Vars
      • B(l);SBLOCK::S(F)
      • S(f);::S(F)
      • S(f);N_GUARD,S_CUTQ(j)::QAB(A),XB(a)
      • S(f);S_CUTR(k)::S(F)
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