MESON Chess Problem Database

Problem Display
PID: 260828 (1K2b3/p2NB2Q/2k1pp2/8/5p2/N1P1b3/3n1n2/3R1Br1 w - - 0 1)

de Barbieri, Vittorio

Nuova Rivista degli Scacchi, 1887

1K2b3/p2NB2Q/2k1pp2/8/5p2/N1P1b3/3n1n2/3R1Br1

#2

8 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd7
      • 2.Bb5#
    • 1...Sb1
      • 2.Bb5#
      • 2.Rd6#
    • 1...Sxf1
      • 2.Rd6#
    • 1...Sb3
      • 2.Bb5#
      • 2.Rd6#
    • 1...Sf3
      • 2.Bb5#
      • 2.Rd6#
    • 1...Sde4
      • 2.Bb5#
  • Tries
    • 1.Qe4+?
      • 1...Kxd7
        • 2.Qb7#
      • 1...Sdxe4
        • 2.Bb5#
      • 1...Sfxe4!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qb5#
        • 2.Qb7#
      • 1...Kd5
        • 2.Qb7#
      • 1...Kxd7
        • 2.Qb7#
      • 1...Sxb1
        • 2.Bb5#
        • 2.Rd6#
      • 1...Rg5
        • 2.Qb7#
      • 1...Bc5
        • 2.Qb7#
      • 1...Bb6
        • 2.Qb5#
      • 1...Sb3
        • 2.Bb5#
        • 2.Rd6#
      • 1...a6
        • 2.Qb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • K(f);N_GUARD,P_SPINS(b),S_FLIGHT,XS(E)::B(B)
    • S(b);OGATE,XB(B)::R1(A)
    • S(b);::B(B)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(f);OGATE,P_SPINS(b),S_FLIGHT,XS(E)::QAR2(G)
        • S(b);XQ(G)::B(B)
      • Refutation
        • S(c);XQ(G)
  • Actual
    • Q(G);
    • Threat
      • DUALS(2)
    • Vars
      • K(f);P_SPINS(b),S_FLIGHT::QAB(G)
      • K(f);P_SPINS(b),S_FLIGHT,XS(E)::QAR2(G)
      • R(a);::QAB1(G)
      • B(d);::QAB1(G)
      • P(i);::QAB1(G)
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