MESON Chess Problem Database

Problem Display
PID: 95704 (4nQ2/2p4B/2p2q2/K6R/3p1k2/5p1P/5P2/8 w - - 0 1)

Sardella, Giuseppe

1st Comm., L'Italia Scacchistica, 1977

4nQ2/2p4B/2p2q2/K6R/3p1k2/5p1P/5P2/8

#2

6 + 7

14744 Nuova Antologia dei Problemisti Italiani 1992
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf5+
      • 2.Qxf5#
    • 1...Qf7
      • 2.Qh6#
  • Tries
    • 1.Rf5+?
      • 1...Qxf5+
        • 2.Qxf5#
      • 1...Ke4!
    • 1.Qh6+?
      • 1...Qg5+
        • 2.Qxg5#
      • 1...Qxh6!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qc1#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Qg6
        • 2.Qe5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qg5
        • 2.Qxg5#
      • 1...Qe7
        • 2.Qf5#
      • 1...Qe6
        • 2.Qg5#
      • 1...d3
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • Q(e);CHECK,OGATE::QAR1(F),XQ(e)
    • Q(e);N_GUARD::QAB(F)
  • Tries
    • Try
      • R(D);CHECK,N_PINQ(e)
      • Vars
        • Q(e);CHECK,OGATE,P_SPINQ(e),XR(D)::QAR1(F),XQ(e)
      • Refutation
        • K(c);P-FLIGHT
    • Try
      • Q(F);CHECK,N_PINQ(e)
      • Vars
        • Q(e);CHECK,N_GUARD,P_SPINQ(e)::QAB1(F),XQ(e)
      • Refutation
        • Q(e);XQ(F)
  • Actual
    • Q(F);N_PINQ(e)
    • Threat
      • QAB(F)
    • Vars
      • Q(e);N_GUARD,P_PINQ(F)::QAR1(F),XQ(e)
      • Q(e);N_GUARD::QAB1(F)
      • Q(e);N_GUARD,P_PINQ(F)::QAB1(F),XQ(e)
      • Q(e);N_GUARD::QAR1(F)
      • P(b);OGATE::QAB1(F)
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