MESON Chess Problem Database

Problem Display
PID: 75529 (2B3b1/p1P3nr/pN6/1k2N3/5nq1/K1Bp4/5Q2/8 w - - 0 1)

Alliney, Frederico

Sinfonie Scacchistiche, 1982

2B3b1/p1P3nr/pN6/1k2N3/5nq1/K1Bp4/5Q2/8

#2

7 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Bd7#
    • 1...Qe2
      • 2.Bd7#
    • 1...Qh5
      • 2.Bd7#
    • 1...Qd7
      • 2.Bxd7#
    • 1...Qg1
      • 2.Bd7#
    • 1...Qg3
      • 2.Bd7#
    • 1...Qh4
      • 2.Bd7#
    • 1...Qg5
      • 2.Bd7#
    • 1...Sfe6
      • 2.Bd7#
  • Tries
    • 1.Qb2+?
      • 1...Kc5
        • 2.Qb4#
      • 1...Bb3!
  • Keys
    • 1.Sa4!
      • threat
        • 2.Qc5#
      • 1...Qg1
        • 2.Bd7#
      • 1...Sfe6
        • 2.Bd7#
      • 1...Sge6
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::B(G)
    • Q(c);N_GUARD::B(G),XQ(c)
    • S(b);S_CUTQ(c)::B(G)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAB1(A)
      • Refutation
        • B(i);P_SPINB(i)
  • Actual
    • S(E);
    • Threat
      • QAR1(A)
    • Vars
      • Q(c);N_GUARD::B(G)
      • S(b);S_CUTQ(c)::B(G)
      • S(g);S_CUTB(i)::QAR(A)
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