MESON Chess Problem Database

Problem Display
PID: 16019 (5n2/8/1pNp2p1/2kB2Q1/1nPp1N1B/4p3/2p4K/8 w - - 0 1)

Rallo, Vito

L'Italia Scacchistica, 2000

5n2/8/1pNp2p1/2kB2Q1/1nPp1N1B/4p3/2p4K/8

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sa2
      • 2.Sd3#
    • 1...Sd3
      • 2.Sxd3#
    • 1...Sxd5
      • 2.Qxd5#
    • 1...Sa6
      • 2.Sd3#
    • 1...Sxc6
      • 2.Sd3#
    • 1...Se6
      • 2.Sxe6#
    • 1...Sd7
      • 2.Se6#
    • 1...Sh7
      • 2.Se6#
  • Tries
    • 1.Be1?
      • threat
        • 2.Bxb4#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Sd3#
      • 1...Sa2
        • 2.Sd3#
      • 1...Sd3
        • 2.Sxd3#
      • 1...Sa6
        • 2.Sd3#
      • 1...b5!
    • 1.Qf6?
      • threat
        • 2.Qxd4#
      • 1...Sxc6
        • 2.Sd3#
      • 1...Se6
        • 2.Sxe6#
      • 1...d3
        • 2.Qd4#
      • 1...Sxd5!
  • Keys
    • 1.Qe5!
      • threat
        • 2.Qxd4#
      • 1...Sxd5
        • 2.Qxd5#
      • 1...Sxc6
        • 2.Sd3#
      • 1...dxe5
        • 2.Be7#
      • 1...Se6
        • 2.Sxe6#
      • 1...d3
        • 2.Qd4#
        • 2.Qxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::S(C)
    • S(c);N_GUARD::S(C),XS(c)
    • S(c);OGATE,P_SPINS(c),XB(E)::QAR1(F),XS(c)
    • S(c);N_GUARD,XS(G)::S(C)
    • S(i);N_GUARD::S(C),XS(i)
    • S(i);N_GUARD::S(C)
  • Tries
    • Try
      • B(D);
      • Threat
        • B(D),XS(c)
      • Vars
        • S(c);OGATE,P_SPINS(c),XB(E)::QAR1(F),XS(c)
        • S(c);N_GUARD,XS(G)::S(C)
        • S(c);N_GUARD::S(C)
        • S(c);N_GUARD::S(C),XS(c)
      • Refutation
        • P(f);
    • Try
      • Q(F);
      • Threat
        • QAB1(F),XP(d)
      • Vars
        • S(c);N_GUARD,XS(G)::S(C)
        • S(i);N_GUARD::S(C),XS(i)
        • P(d);::QAB1(F)
      • Refutation
        • S(c);XB(E)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XP(d)
    • Vars
      • S(c);OGATE,P_SPINS(c),XB(E)::QAR1(F),XS(c)
      • S(c);N_GUARD,XS(G)::S(C)
      • P(g);OGATEB,XQ(F)::B(D)
      • S(i);N_GUARD::S(C),XS(i)
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