MESON Chess Problem Database

Problem Display
PID: 51719 (r7/2p2Np1/bpp3P1/Rp4Qp/2PkB1p1/P4n2/2RN1P2/K4n2 w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 2004

r7/2p2Np1/bpp3P1/Rp4Qp/2PkB1p1/P4n2/2RN1P2/K4n2

#2

11 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...S1xd2
      • 2.Qe3#
    • 1...S1h2
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
      • 2.fxe3#
    • 1...Sg3
      • 2.Qe3#
    • 1...Se1
      • 2.Qe5#
    • 1...Sg1
      • 2.Qe5#
    • 1...S3xd2
      • 2.Qe5#
    • 1...S3h2
      • 2.Qe5#
    • 1...Sh4
      • 2.Qe5#
    • 1...Se5
      • 2.Qxe5#
    • 1...c5
      • 2.Qd5#
  • Tries
    • 1.Sxf3+?
      • 1...gxf3
        • 2.Qe5#
      • 1...Kxe4!
    • 1.Bf5?
      • threat
        • 2.Sb3#
      • 1...Kc5
        • 2.Sb3#
      • 1...S1xd2
        • 2.Qe3#
      • 1...bxc4
        • 2.Qf4#
      • 1...S3xd2!
    • 1.Qf6+?
      • 1...Kc5
        • 2.Sb3#
        • 2.cxb5#
      • 1...Se5
        • 2.Qxe5#
      • 1...gxf6!
    • 1.Qe7?
      • threat
        • 2.Sb3#
      • 1...S3xd2
        • 2.Qe5#
      • 1...bxc4
        • 2.Qd7#
      • 1...Se5
        • 2.Qxe5#
      • 1...S1xd2!
    • 1.Qd8+?
      • 1...Kc5
        • 2.Sb3#
        • 2.cxb5#
      • 1...Rxd8!
    • 1.Qc5+?
      • 1...Kxc5
        • 2.Sb3#
      • 1...bxc5!
    • 1.Qf5?
      • threat
        • 2.Sb3#
      • 1...S3xd2
        • 2.Qe5#
      • 1...bxc4
        • 2.Qd7#
      • 1...S1xd2!
    • 1.cxb5?
      • threat
        • 2.Rc4#
        • 2.Ra4#
      • 1...S1xd2
        • 2.Qe3#
      • 1...S3xd2
        • 2.Qe5#
      • 1...bxa5
        • 2.Rc4#
        • 2.Qc5#
      • 1...cxb5
        • 2.Qd5#
      • 1...Bb7
        • 2.Rc4#
      • 1...Bc8
        • 2.Rc4#
      • 1...Se3
        • 2.Qxe3#
        • 2.fxe3#
      • 1...Se5
        • 2.Qxe5#
      • 1...c5
        • 2.Rc4#
        • 2.Qd5#
      • 1...Bxb5!
  • Keys
    • 1.Qf4!
      • threat
        • 2.Sb3#
      • 1...Kc5
        • 2.Sb3#
      • 1...S1xd2
        • 2.Qe3#
      • 1...S3xd2
        • 2.Qe5#
      • 1...bxc4
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 8
  • Sets
    • S(a);N_GUARD,XS(C)::QAB1(I)
    • S(a);N_GUARD::QAB1(I)
    • S(b);N_GUARD::QAB1(I)
    • S(b);N_GUARD,XS(C)::QAB1(I)
    • S(b);N_GUARD::QAB1(I),XS(b)
    • P(i);N_GUARD::QAR1(I)
  • Tries
    • Try
      • S(C);CHECK,XS(b)
      • Vars
        • P(d);XS(C)::QAB1(I)
      • Refutation
        • K(c);P-FLIGHT,XB(G)
    • Try
      • B(G);
      • Threat
        • S(C)
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT::S(C)
        • S(a);N_GUARD,XS(C)::QAB1(I)
        • P(e);XP(F)::QAR2(I)
      • Refutation
        • S(b);XS(C)
    • Try
      • Q(I);CHECK
      • Vars
        • S(b);N_GUARD,P_SPINS(b)::QAB1(I),XS(b)
      • Refutation
        • P(k);XQ(I)
    • Try
      • Q(I);
      • Threat
        • S(C)
      • Vars
        • S(b);N_GUARD,XS(C)::QAB1(I)
        • P(e);XP(F)::QAR(I)
        • S(b);N_GUARD::QAB1(I),XS(b)
      • Refutation
        • S(a);XS(C)
    • Try
      • Q(I);CHECK
      • Refutation
        • R(l);XQ(I)
    • Try
      • Q(I);CHECK
      • Vars
        • K(c);P_SPINP(e),S_FLIGHT,XQ(I)::S(C)
      • Refutation
        • P(h);XQ(I)
    • Try
      • Q(I);
      • Threat
        • S(C)
      • Vars
        • S(b);N_GUARD,XS(C)::QAB1(I)
        • P(e);XP(F)::QAR(I)
      • Refutation
        • S(a);XS(C)
    • Try
      • P(F);XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);N_GUARD,XS(C)::QAB1(I)
        • S(b);N_GUARD,XS(C)::QAB1(I)
        • P(i);N_GUARD,XP(F)::QAR1(I)
        • B(g);::R1(B)
        • S(b);N_GUARD::QAB1(I),XS(b)
      • Refutation
        • B(g);XP(F)
  • Actual
    • Q(I);
    • Threat
      • S(C)
    • Vars
      • K(c);P_SPINP(e),S_FLIGHT::S(C)
      • S(a);N_GUARD,XS(C)::QAB1(I)
      • S(b);N_GUARD,XS(C)::QAB1(I)
      • P(e);XP(F)::QAR(I)+B(G)
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