MESON Chess Problem Database

Problem Display
PID: 270289 (Q2N4/3p1r2/3n4/1pPNk1P1/1R3p2/2p4B/7K/b5Bb w - - 0 1)

Simoni, Francesco

L'Italia Scacchistica, 1992

Q2N4/3p1r2/3n4/1pPNk1P1/1R3p2/2p4B/7K/b5Bb

#2

9 + 9

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Bd4#
    • 1...Se4
      • 2.Sxf7#
      • 2.Bd4#
    • 1...Sc8
      • 2.Sxf7#
    • 1...Se8
      • 2.Sxf7#
  • Tries
    • 1.Qb8?
      • threat
        • 2.Qxd6#
      • 1...Kxd5
        • 2.Qxd6#
      • 1...Rf6!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Bd4#
      • 1...Sc4
        • 2.Sxf7#
      • 1...Sf5
        • 2.Sg4#
      • 1...c2
        • 2.Qxa1#
      • 1...f3
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(b);SBLOCK::B(A)
    • S(g);N_GUARD::S(I),XR(i)
  • Tries
    • Try
      • Q(H);P_PINS(g)
      • Threat
        • QAB1(H),XS(g)
      • Vars
        • K(f);N_SPINS(g),P-FLIGHT,XS(F)::QAR1(H),XS(g)
      • Refutation
        • R(i);
  • Actual
    • S(F);
    • Threat
      • B(A)
    • Vars
      • S(g);N_GUARD::S(I),XR(i)
      • S(g);SBLOCK::S(F)
      • P(c);OGATEB::QAB(H),XB(a)
      • P(d);S_CUTB(b)::QAR1(H)
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