MESON Chess Problem Database

Problem Display
PID: 57750 (7b/7Q/1pn5/pR6/R1bk1P2/3Nrq2/1KB5/4n1B1 w - - 0 1)

Garofalo, Antonio

8th Comm., Scacco!, 1995

7b/7Q/1pn5/pR6/R1bk1P2/3Nrq2/1KB5/4n1B1

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sxd3+
      • 2.Qxd3#
  • Tries
    • 1.Sxe1?
      • threat
        • 2.Sxf3#
        • 2.Qd3#
      • 1...Qxf4
        • 2.Qd3#
      • 1...Qd1
        • 2.Qe4#
        • 2.Qd7#
      • 1...Qh1
        • 2.Qd3#
      • 1...Qe2
        • 2.Qe4#
        • 2.Qd7#
      • 1...Qg2
        • 2.Qd3#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qg4
        • 2.Qd3#
        • 2.Qe4#
      • 1...Qd5
        • 2.Qd3#
      • 1...Qh5
        • 2.Qd3#
        • 2.Qe4#
      • 1...Qf1
        • 2.Qe4#
        • 2.Qd7#
      • 1...Qf2
        • 2.Qd7#
      • 1...Qg3
        • 2.Qd3#
        • 2.Qe4#
        • 2.Qd7#
      • 1...Qh3
        • 2.Qd3#
        • 2.Qe4#
      • 1...Sb4
        • 2.Sxf3#
        • 2.Qxh8#
      • 1...Se5!
    • 1.Qd7+?
      • 1...Qd5
        • 2.Qxd5#
      • 1...Ke4+!
    • 1.Qxh8+?
      • 1...Se5
        • 2.Qxe5#
      • 1...Ke4!
  • Keys
    • 1.Sc1!
      • threat
        • 2.Sb3#
      • 1...Sd3+
        • 2.Qxd3#
      • 1...Qf2
        • 2.Qd7#
      • 1...Sb4
        • 2.Qxh8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);CHECK,OGATE,XS(D)::QAR1(H),XS(a)
  • Tries
    • Try
      • S(D);XS(a)
      • Threat
        • DUALS(2)
      • Vars
        • Q(c);XP(F)::QAR1(H)
        • Q(c);::QAR1(H)
        • Q(c);P_PINB(C)::QAR1(H)
        • Q(c);N_GUARD::QAR1(H),XQ(c)
        • Q(c);N_GUARD,N_SPINR(b),P_PINB(C)::QAR(H)
      • Refutation
        • S(h);
    • Try
      • Q(H);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAR1(H),XQ(c)
      • Refutation
        • K(e);CHECK,N_SPINR(b),P-FLIGHT
    • Try
      • Q(H);CHECK,XB(i)
      • Vars
        • S(h);N_GUARD,P_SPINS(h)::QAB1(H),XS(h)
      • Refutation
        • K(e);N_SPINR(b),P-FLIGHT
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • S(a);CHECK,N_GUARD::QAR1(H),XS(a)
      • Q(c);N_GUARD,N_SPINR(b),P_PINB(C)::QAR(H)
      • S(h);N_GUARD,N_SPINB(d)::QAB(H),XB(i)
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