MESON Chess Problem Database

Problem Display
PID: 186122 (1B1R4/3p4/3n4/R1N1Np1Q/3kP3/8/1P1nK3/6b1 w - - 0 1)

Barnes, Barry Peter

Chess, 1959

1B1R4/3p4/3n4/R1N1Np1Q/3kP3/8/1P1nK3/6b1

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...S2c4
      • 2.Sf3#
    • 1...S2xe4
      • 2.Sb3#
    • 1...S6c4
      • 2.Sc6#
    • 1...S6xe4
      • 2.Se6#
  • Tries
    • 1.Qh6?
      • threat
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Qxd6#
      • 1...S2xe4
        • 2.Sb3#
      • 1...S6xe4
        • 2.Se6#
      • 1...S2c4
        • 2.Sf3#
      • 1...S6c4
        • 2.Sc6#
      • 1...Sb7
        • 2.Qxd2#
      • 1...Sf7
        • 2.Qxd2#
      • 1...Sc8
        • 2.Qxd2#
      • 1...Se8
        • 2.Qxd2#
      • 1...Sb5!
  • Keys
    • 1.Qg6!
      • threat
        • 2.Qxd6#
      • 1...Kxe5
        • 2.Qxd6#
      • 1...S2xe4
        • 2.Sb3#
      • 1...S6xe4
        • 2.Se6#
      • 1...S2c4
        • 2.Sf3#
      • 1...S6c4
        • 2.Sc6#
      • 1...Sb5
        • 2.Qxg1#
      • 1...Sb7
        • 2.Qxg1#
      • 1...Sf7
        • 2.Qxg1#
      • 1...Sc8
        • 2.Qxg1#
      • 1...Se8
        • 2.Qxg1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD,SBLOCK::S(F)
    • S(b);N_GUARD,SBLOCK,XP(C)::S(E)
    • S(e);P_SPINP(f),SBLOCK::S(F)
    • S(e);P_SPINP(f),SBLOCK,XP(C)::S(E)
  • Tries
    • Try
      • Q(G);
      • Threat
        • QAR2(G),XS(e)
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT,XS(F)::QAB1(G),XS(e)
        • S(b);N_GUARD,SBLOCK,XP(C)::S(E)
        • S(e);P_SPINP(f),SBLOCK,XP(C)::S(E)
        • S(b);N_GUARD,SBLOCK::S(F)
        • S(e);P_SPINP(f),SBLOCK::S(F)
        • S(e);P_SPINP(f)::QAR2(G),XS(b)
      • Refutation
        • S(e);P_SPINP(f)
  • Actual
    • Q(G);
    • Threat
      • QAR2(G),XS(e)
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT,XS(F)::QAB1(G),XS(e)
      • S(b);N_GUARD,SBLOCK,XP(C)::S(E)
      • S(e);P_SPINP(f),SBLOCK,XP(C)::S(E)
      • S(b);N_GUARD,SBLOCK::S(F)
      • S(e);P_SPINP(f),SBLOCK::S(F)
      • S(e);P_SPINP(f)::QAB(G),XB(a)
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