MESON Chess Problem Database

Problem Display
PID: 11933 (1Q6/1N2n1B1/5q2/b2b1R2/2kP4/K7/2PP4/2R5 w - - 0 1)

di Vincenzi, Renato

Unpublished, 1973

1Q6/1N2n1B1/5q2/b2b1R2/2kP4/K7/2PP4/2R5

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Qh4
      • 2.Sxa5#
      • 2.Sd6#
    • 1...Qg5
      • 2.Sxa5#
      • 2.Sd6#
    • 1...Qxf5
      • 2.Sxa5#
      • 2.Sd6#
    • 1...Qc6
      • 2.Sxa5#
    • 1...Qd6+
      • 2.Sxd6#
    • 1...Qe6
      • 2.Sxa5#
    • 1...Qg6
      • 2.Sxa5#
    • 1...Qh6
      • 2.Sxa5#
    • 1...Qf7
      • 2.Sxa5#
      • 2.Sd6#
    • 1...Qf8
      • 2.Sxa5#
      • 2.Sd6#
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qc5#
      • 1...Qxd6+
        • 2.Sxd6#
      • 1...Bb4+
        • 2.Qxb4#
      • 1...Kxd4
        • 2.Rf4#
      • 1...Kb5
        • 2.c4#
      • 1...Qxd4
        • 2.Qa6#
      • 1...Bb6
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • Q(d);::S(G),XB(b)
    • Q(d);CHECK,N_GUARD::S(G),XQ(d)
  • Actual
    • Q(I);
    • Threat
      • QAR1(I)
    • Vars
      • Q(d);CHECK,XQ(I)::S(G),XQ(d)
      • B(b);CHECK,N_GUARD::QAR1(I),XB(b)
      • K(a);OGATEB,P-FLIGHT,P_SPINB(c),P_SPINQ(d),XP(E)::R(F)
      • K(a);OGATE,P_SPINB(c),S_FLIGHT::P(B)
      • Q(d);N_GUARD,XP(E)::QAB(I)
      • B(b);N_GUARD::QAR1(I)
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