MESON Chess Problem Database

Problem Display
PID: 136546 (4r3/1N6/p7/1PPP4/1kN3BR/p1nP4/1bQB2PK/2n5 w - - 0 1)

Fasano, Alessandro

L'Italia Scacchistica, 2000

4r3/1N6/p7/1PPP4/1kN3BR/p1nP4/1bQB2PK/2n5

#2

12 + 7

6490 yacpdb 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Sb6?
      • threat
        • 2.Qa4#
      • 1...Kxb5
        • 2.Bd7#
      • 1...axb5
        • 2.Be6#
      • 1...Sb3!
    • 1.Bxc3+?
      • 1...Kxb5
        • 2.Scd6#
        • 2.Bd7#
      • 1...Bxc3!
    • 1.Qxc3+?
      • 1...Ka4
        • 2.Qb4#
      • 1...Kxb5
        • 2.Bd7#
        • 2.Qb4#
        • 2.Qa5#
      • 1...Bxc3!
  • Keys
    • 1.Bd1!
      • threat
        • 2.Qa4#
      • 1...Kxb5
        • 2.Scd6#
      • 1...axb5
        • 2.Se5#
      • 1...Sb3
        • 2.Qxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(A)
      • Vars
        • K(e);N_SPINS(d),P-FLIGHT,XP(I)::B(G)
        • P(f);SBLOCK,XP(I)::R(H)+B(G)
      • Refutation
        • S(a);
    • Try
      • B(B);CHECK,XS(d)
      • Refutation
        • B(b);XB(B)
    • Try
      • Q(A);CHECK,XS(d)
      • Vars
        • K(e);P-FLIGHT::QAR1(A)
      • Refutation
        • B(b);P_SPINB(b),XQ(A)
  • Actual
    • B(G);
    • Threat
      • QAR1(A)
    • Vars
      • K(e);N_SPINS(d),P-FLIGHT,XP(I)::S(F)
      • P(f);SBLOCK,XP(I)::R(H)+S(F)
      • S(a);N_GUARD::QAR1(A),XS(a)
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