MESON Chess Problem Database

Problem Display
PID: 7471 (1NQ2B2/3n4/5n2/2pp2R1/2k5/3N4/2K2P2/8 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1990

1NQ2B2/3n4/5n2/2pp2R1/2k5/3N4/2K2P2/8

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kb5
      • 2.Qa6#
    • 1...Se5
      • 2.Qxc5#
    • 1...Sb6
      • 2.Qxc5#
    • 1...Sxb8
      • 2.Qxc5#
    • 1...Sxf8
      • 2.Qxc5#
    • 1...d4
      • 2.Qa6#
  • Tries
    • 1.Bxc5?
      • threat
        • 2.Qa6#
      • 1...Kb5
        • 2.Qa6#
      • 1...Sxc5
        • 2.Qxc5#
      • 1...Sxb8!
    • 1.Qc6?
      • threat
        • 2.Qa4#
      • 1...Sb6
        • 2.Qxc5#
      • 1...Kd4!
  • Keys
    • 1.Bg7!
      • 1...Kd4
        • 2.Rg4#
      • 1...Kb5
        • 2.Qa6#
      • 1...Sxb8
        • 2.Qxc5#
      • 1...Se4
        • 2.Qa6#
      • 1...Sg4
        • 2.Qa6#
      • 1...Sh5
        • 2.Qa6#
      • 1...Sh7
        • 2.Qa6#
      • 1...Se8
        • 2.Qa6#
      • 1...Sg8
        • 2.Qa6#
      • 1...Se5
        • 2.Qxc5#
      • 1...Sb6
        • 2.Qxc5#
      • 1...Sf8
        • 2.Qxc5#
      • 1...d4
        • 2.Qa6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),S_FLIGHT::QAB1(F)
    • S(e);N_GUARD::QAR1(F),XP(b)
    • S(e);N_GUARD,XS(E)::QAR1(F),XP(b)
    • S(e);N_GUARD,XB(G)::QAR1(F),XP(b)
    • P(c);SBLOCK::QAB(F)
  • Tries
    • Try
      • B(G);XP(b)
      • Threat
        • QAB(F)
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
        • S(e);OGATE,P_SPINS(e),XB(G)::QAR1(F),XS(e)
      • Refutation
        • S(e);XS(E)
    • Try
      • Q(F);
      • Threat
        • QAR2(F)
      • Vars
        • S(e);N_GUARD::QAR1(F),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
  • Actual
    • B(G);
    • Vars
      • K(a);N_SPINP(b),P-FLIGHT,P_SPINS(d)::R(D)
      • K(a);N_SPINP(b),S_FLIGHT::QAB1(F)
      • S(e);N_GUARD,XS(E)::QAR1(F),XP(b)
      • S(d);::QAB(F)
      • S(e);N_GUARD::QAR1(F),XP(b)
      • P(c);SBLOCK::QAB(F)
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