MESON Chess Problem Database

Problem Display
PID: 7107 (3K1RNr/7p/3p1np1/3r1kpp/4n3/5N2/4Q1PB/8 w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 1998

3K1RNr/7p/3p1np1/3r1kpp/4n3/5N2/4Q1PB/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Sh6#
    • 1...Ke6
      • 2.Rxf6#
    • 1...Rd4
      • 2.Sxd4#
    • 1...Ra5
      • 2.Sd4#
    • 1...Rb5
      • 2.Sd4#
    • 1...Rc5
      • 2.Sd4#
    • 1...Re5
      • 2.Sd4#
    • 1...Sd2
      • 2.Sh6#
    • 1...Sf2
      • 2.Sh6#
    • 1...Sc3
      • 2.Sh6#
    • 1...Sc5
      • 2.Sh6#
  • Tries
    • 1.Sh4+?
      • 1...Ke6
        • 2.Rxf6#
      • 1...gxh4!
    • 1.Rxf6+?
      • 1...Kg4
        • 2.Qxe4#
      • 1...Sxf6!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qc8#
      • 1...Kg4
        • 2.Sh6#
      • 1...Ke6
        • 2.Sd4#
      • 1...Rc5
        • 2.Sh6#
      • 1...Re5
        • 2.Sh6#
      • 1...Sd2
        • 2.Rxf6#
      • 1...Sf2
        • 2.Rxf6#
      • 1...Sc3
        • 2.Rxf6#
      • 1...Sg3
        • 2.Rxf6#
      • 1...Sc5
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 7
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • K(c);N_SPINS(g),S_FLIGHT::S(G)
    • K(c);N_SPINS(g),P_SPINS(a),S_FLIGHT::R1(F),XS(g)
    • R(b);N_GUARD::S(D),XR(b)
    • R(b);N_GUARD::S(D)
    • S(a);::S(G)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(c);N_SPINS(g),P_SPINS(a),S_FLIGHT::R1(F),XS(g)
      • Refutation
        • P(d);XS(D)
    • Try
      • R(F);CHECK,P_SPINS(G),XS(g)
      • Vars
        • K(c);S_FLIGHT::QAR2(A),XS(a)
      • Refutation
        • S(a);XR(F)
  • Actual
    • Q(A);
    • Threat
      • QAB(A)
    • Vars
      • K(c);N_SPINS(g),P_SPINS(a),S_FLIGHT::S(G)
      • K(c);N_SPINS(g),P_SPINR(b),S_FLIGHT::S(D)
      • R(b);::S(G)
      • S(a);N_GUARD::R1(F),XS(g)
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