MESON Chess Problem Database

Problem Display
PID: 7112 (8/8/3B4/1PPkPP2/5r2/1P1KQ3/8/8 w - - 0 1)

Franco, Francesco

L'Italia Scacchistica, 1998

8/8/3B4/1PPkPP2/5r2/1P1KQ3/8/8

#2

8 + 2

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Qd4#
      • 2.Qe4#
    • 1...Rf2
      • 2.Qd4#
      • 2.Qe4#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rc4
      • 2.bxc4#
    • 1...Rd4+
      • 2.Qxd4#
    • 1...Re4
      • 2.Qxe4#
  • Tries
    • 1.Qf3+?
      • 1...Re4
        • 2.Qxe4#
      • 1...Rxf3+!
    • 1.c6?
      • threat
        • 2.Qc5#
      • 1...Rd4+
        • 2.Qxd4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Rc4
        • 2.bxc4#
      • 1...Rxf5!
  • Keys
    • 1.e6!
      • threat
        • 2.Qe5#
      • 1...Rd4+
        • 2.Qxd4#
      • 1...Rxf5
        • 2.Qe4#
      • 1...Rf3
        • 2.Qxf3#
      • 1...Re4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD,P_PINQ(C)::QAB(C),XR(a)
    • R(a);OGATE::P(A),XR(a)
    • R(a);CHECK,N_GUARD::QAR1(C),XR(a)
    • R(a);N_GUARD::QAB1(C),XR(a)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • R(a);N_GUARD,P_SPINR(a)::QAB1(C),XR(a)
      • Refutation
        • R(a);CHECK,XQ(C)
    • Try
      • P(E);
      • Threat
        • QAR1(C)
      • Vars
        • R(a);CHECK,N_GUARD::QAR1(C),XR(a)
        • R(a);N_GUARD,P_PINQ(C)::QAB(C),XR(a)
        • R(a);OGATE::P(A),XR(a)
      • Refutation
        • R(a);XP(G)
  • Actual
    • P(F);
    • Threat
      • QAR1(C)
    • Vars
      • R(a);CHECK,N_GUARD::QAR1(C),XR(a)
      • R(a);N_GUARD,XP(G)::QAB1(C)
      • R(a);N_GUARD,P_PINQ(C)::QAB(C),XR(a)
      • R(a);N_GUARD::QAB1(C),XR(a)
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