MESON Chess Problem Database

Problem Display
PID: 11932 (8/7Q/p3r3/K1p3n1/2k1PRN1/6nR/1Bb1r3/2N5 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1973

8/7Q/p3r3/K1p3n1/2k1PRN1/6nR/1Bb1r3/2N5

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Se3#
    • 1...Rf2
      • 2.Se3#
    • 1...Rg2
      • 2.Se3#
    • 1...Rh2
      • 2.Se3#
    • 1...Re3
      • 2.Sxe3#
    • 1...R2xe4
      • 2.Se3#
    • 1...Re5
      • 2.Sxe5#
    • 1...Rb6
      • 2.Se5#
    • 1...Rc6
      • 2.Se5#
    • 1...Rd6
      • 2.Se5#
    • 1...Rf6
      • 2.Se5#
    • 1...Rg6
      • 2.Se5#
    • 1...Rh6
      • 2.Se5#
  • Keys
    • 1.Qd7!
      • threat
        • 2.Qd5#
      • 1...R2xe4
        • 2.Se3#
      • 1...R6xe4
        • 2.Se5#
      • 1...Bxe4
        • 2.Qd3#
      • 1...S3xe4
        • 2.Rc3#
      • 1...S5xe4
        • 2.Qxe6#
      • 1...Rd2
        • 2.Se3#
      • 1...Re5
        • 2.Sxe5#
      • 1...Rd6
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 9
  • Sets
    • R(b);N_GUARD::S(F)
    • R(b);N_GUARD::S(F),XR(b)
    • R(b);N_GUARD,P_SPINR(b),XP(D)::S(F)
    • R(h);N_GUARD::S(F),XR(h)
    • R(h);N_GUARD::S(F)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • R(b);N_GUARD,P_SPINR(b),XP(D)::S(F)
      • R(h);N_GUARD,P_SPINR(h),XP(D)::S(F)
      • B(a);N_GUARD,P_SPINB(a),XP(D)::QAB1(H)
      • S(c);OGATE,P_SPINS(c),XP(D)::R1(C)
      • S(f);N_GUARD,P_SPINS(f),XP(D)::QAB(H),XR(h)
      • R(b);N_GUARD::S(F)
      • R(h);N_GUARD::S(F),XR(h)
      • R(h);N_GUARD::S(F)
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