MESON Chess Problem Database

Problem Display
PID: 242812 (Q5N1/4p3/3pN3/1ppPk3/2P3n1/3B2P1/2nK4/8 w - - 0 1)

Bakcsi, Gyorgy

Sinfonie Scacchistiche, 1988

Q5N1/4p3/3pN3/1ppPk3/2P3n1/3B2P1/2nK4/8

#2

8 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qxa1#
    • 1...Se1
      • 2.Qa1#
    • 1...Sce3
      • 2.Qa1#
    • 1...Sb4
      • 2.Qa1#
  • Tries
    • 1.Sg5?
      • threat
        • 2.Sf3#
      • 1...Kd4
        • 2.Sf3#
      • 1...Se1
        • 2.Qa1#
      • 1...Sd4
        • 2.Sf7#
      • 1...Sh2!
    • 1.Sd8?
      • threat
        • 2.Sc6#
      • 1...Kd4
        • 2.Sc6#
      • 1...Sb4
        • 2.Qa1#
      • 1...Sd4
        • 2.Sf7#
      • 1...bxc4!
    • 1.Qf8?
      • threat
        • 2.Qf4#
        • 2.Qf5#
      • 1...bxc4
        • 2.Qf5#
      • 1...Sce3
        • 2.Qf4#
      • 1...Sd4
        • 2.Qf4#
      • 1...Sge3
        • 2.Qg7#
        • 2.Qf4#
      • 1...Sh6
        • 2.Qg7#
        • 2.Qf4#
      • 1...Sf6!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Sxg4#
      • 1...Kf6
        • 2.Qh8#
      • 1...Sxh6
        • 2.Qh8#
      • 1...Sce3
        • 2.Qa1#
      • 1...Sf2
        • 2.Qh8#
      • 1...Sh2
        • 2.Qh8#
      • 1...Sge3
        • 2.Qh8#
      • 1...Sf6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • S(a);N_GUARD::QAB(G),XS(a)
    • S(a);N_GUARD::QAB(G)
  • Tries
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(e);S_FLIGHT::S(F)
        • S(a);N_GUARD::QAB(G)
        • S(a);SBLOCK::S(F)
      • Refutation
        • S(b);
    • Try
      • S(F);
      • Threat
        • S(F)
      • Vars
        • K(e);S_FLIGHT::S(F)
        • S(a);N_GUARD::QAB(G)
        • S(a);SBLOCK::S(F)
      • Refutation
        • P(c);XP(D)
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XP(D)::QAR1(G)
        • S(a);::QAB1(G)
      • Refutation
        • S(b);
  • Actual
    • S(H);
    • Threat
      • S(H),XS(b)
    • Vars
      • K(e);S_FLIGHT::QAB(G)
      • S(b);N_GUARD,XS(H)::QAB(G)
      • S(a);N_GUARD::QAB(G)
      • S(b);N_GUARD::QAB(G)
      • S(b);SBLOCK::S(H)
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