MESON Chess Problem Database

Problem Display
PID: 199543 (1b6/1kn5/4B3/2Q2K2/R7/8/8/8 w - - 0 1)

Ignatenko, Gennady Petrovich

Zadachi i Etyudi, 2015

1b6/1kn5/4B3/2Q2K2/R7/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Sb5
      • 2.Bd5#
      • 2.Bc8#
    • 1...Sd5
      • 2.Bxd5#
      • 2.Bc8#
    • 1...Sa6
      • 2.Bd5#
    • 1...Sa8
      • 2.Bd5#
      • 2.Bc8#
    • 1...Se8
      • 2.Bd5#
      • 2.Bc8#
  • Tries
    • 1.Bd7?
      • threat
        • 2.Qc6#
      • 1...Ba7
        • 2.Qxa7#
      • 1...Sa6!
  • Keys
    • 1.Ra6!
      • threat
        • 2.Qb6#
        • 2.Qc6#
      • 1...Kxa6
        • 2.Bc8#
      • 1...Sxa6
        • 2.Bd5#
      • 1...Sxe6
        • 2.Qc6#
      • 1...Ba7
        • 2.Qxa7#
      • 1...Sd5
        • 2.Bc8#
        • 2.Qc6#
        • 2.Qc8#
      • 1...Sa8
        • 2.Bc8#
        • 2.Qc6#
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::B(D)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAB1(B)
      • Vars
        • B(c);N_GUARD::QAR1(B),XB(c)
      • Refutation
        • S(b);
  • Actual
    • R(A);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);S_FLIGHT,XR(A)::B(D)
      • S(b);N_GUARD,SBLOCK,XR(A)::B(D)
      • S(b);XB(D)::QAB1(B)
      • B(c);N_GUARD::QAR1(B),XB(c)
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