MESON Chess Problem Database

Problem Display
PID: 69922 (K7/3P1PQn/2p1p3/b3Nn2/R2pkBP1/3p3b/B2p1R2/5N2 w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 1999

K7/3P1PQn/2p1p3/b3Nn2/R2pkBP1/3p3b/B2p1R2/5N2

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bb6
      • 2.Sxd2#
    • 1...Bc7
      • 2.Sxd2#
    • 1...Bd8
      • 2.Sxd2#
    • 1...Se3
      • 2.Sg3#
    • 1...Sg3
      • 2.Sxg3#
    • 1...Sh4
      • 2.Sg3#
    • 1...Sd6
      • 2.Sg3#
    • 1...Sh6
      • 2.Sg3#
    • 1...Se7
      • 2.Sg3#
    • 1...Sxg7
      • 2.Sg3#
  • Tries
    • 1.Sc4?
      • threat
        • 2.Qe5#
      • 1...Kd5
        • 2.Qe5#
      • 1...Sxg7
        • 2.Sd6#
      • 1...Bc7
        • 2.Scxd2#
      • 1...e5
        • 2.Qxe5#
      • 1...Sf6!
    • 1.Sxc6?
      • threat
        • 2.Qe5#
      • 1...Sxg7
        • 2.Sg3#
        • 2.Rxd4#
      • 1...Bc7
        • 2.Sxd2#
      • 1...e5
        • 2.Qxe5#
      • 1...Sf6!
    • 1.Sg6?
      • threat
        • 2.Qe5#
      • 1...Sxg7
        • 2.Sg3#
      • 1...Bc7
        • 2.Sxd2#
      • 1...e5
        • 2.Qxe5#
      • 1...Sf6!
    • 1.Rxd4+?
      • 1...Sxd4
        • 2.Sg3#
      • 1...Kxd4!
    • 1.gxf5?
      • threat
        • 2.Sg3#
      • 1...Kxf5
        • 2.Sg3#
        • 2.Qg6#
      • 1...Bxf1!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qe5#
      • 1...Kxf4
        • 2.S3xd2#
      • 1...Sxg7
        • 2.Rxd4#
      • 1...Bc7
        • 2.S3xd2#
      • 1...Sf6
        • 2.Sg5#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • B(f);N_GUARD::S(A),XP(a)
    • S(g);N_GUARD::S(A)
    • S(g);N_GUARD::S(A),XS(g)
    • S(g);N_GUARD,XQ(J)::S(A)
  • Tries
    • Try
      • S(G);N_PINP(d)
      • Threat
        • QAR1(J)
      • Vars
        • K(e);S_FLIGHT::QAR1(J)
        • S(g);N_GUARD,XQ(J)::S(G)
        • B(f);N_GUARD::S(G),XP(a)
        • P(i);::QAR1(J),XP(i)
      • Refutation
        • S(j);
    • Try
      • S(G);XP(h)
      • Threat
        • QAR1(J)
      • Vars
        • B(f);N_GUARD::S(A),XP(a)
        • P(i);::QAR1(J),XP(i)
      • Refutation
        • S(j);
    • Try
      • S(G);
      • Threat
        • QAR1(J)
      • Vars
        • S(g);N_GUARD,XQ(J)::S(A)
        • B(f);N_GUARD::S(A),XP(a)
        • P(i);::QAR1(J),XP(i)
      • Refutation
        • S(j);
    • Try
      • R(D);CHECK,XP(d)
      • Vars
        • S(g);SBLOCK,XR(D)::S(A)
      • Refutation
        • K(e);P-FLIGHT,XR(D)
    • Try
      • P(F);XS(g)
      • Threat
        • S(A)
      • Refutation
        • B(c);XS(A)
  • Actual
    • S(G);
    • Threat
      • QAR1(J)
    • Vars
      • K(e);P-FLIGHT,XB(E)::R(C)+S(G),XP(a)
      • S(g);N_GUARD,XQ(J)::R1(D),XP(d)
      • B(f);N_GUARD::S(G),XP(a)
      • S(j);N_GUARD::S(G)
      • P(i);::QAR1(J),XP(i)
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