MESON Chess Problem Database

Problem Display
PID: 199869 (7B/K3Q3/8/3pPp2/1P2k2P/3pPp2/8/4R1N1 w - - 0 1)

Servais, Albert

Bekroonde Problemen, 2002

7B/K3Q3/8/3pPp2/1P2k2P/3pPp2/8/4R1N1

#2

9 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qb7#
    • 1...f4
      • 2.Qh7#
  • Tries
    • 1.Qc5?
      • threat
        • 2.Qd4#
      • 1...d4
        • 2.Qxd4#
        • 2.Qc6#
      • 1...f4!
    • 1.Qc7?
      • 1...d2
        • 2.Qc2#
      • 1...d4
        • 2.Qc6#
        • 2.Qb7#
      • 1...f4
        • 2.Qh7#
      • 1...f2!
    • 1.Qg7?
      • 1...d4
        • 2.Qb7#
      • 1...f4
        • 2.Qg6#
        • 2.Qh7#
      • 1...f2
        • 2.Qg2#
      • 1...d2!
  • Keys
    • 1.Sh3!
      • threat
        • 2.Sf2#
        • 2.Sg5#
      • 1...d2
        • 2.Sf2#
      • 1...f2
        • 2.Sg5#
      • 1...d4
        • 2.Qb7#
      • 1...f4
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB::QAB(H)
    • P(e);OGATEB::QAB(H)
  • Tries
    • Try
      • Q(H);
      • Threat
        • QAR1(H)
      • Refutation
        • P(e);
    • Try
      • Q(H);
      • Vars
        • P(a);OGATEB::QAB(H)
        • P(e);OGATEB::QAB(H)
      • Refutation
        • P(b);
    • Try
      • Q(H);
      • Vars
        • P(d);OGATEB::QAB(H)
        • P(b);OGATEB::QAB(H)
      • Refutation
        • P(a);
  • Actual
    • S(B);
    • Threat
      • DUALS(2)
    • Vars
      • P(a);::S(B)
      • P(b);::S(B)
      • P(d);OGATEB::QAB(H)
      • P(e);OGATEB::QAB(H)
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