MESON Chess Problem Database

Problem Display
PID: 155822 (8/1b6/4pp2/4P3/2QNkp2/3p1N2/3K4/8 w - - 0 1)

de Haas, Bastian Evert

Probleemblad, 2015

8/1b6/4pp2/4P3/2QNkp2/3p1N2/3K4/8

#2

5 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd3#
    • 1...Ba6
      • 2.Qc6#
    • 1...Bc6
      • 2.Qxc6#
    • 1...Bc8
      • 2.Qc6#
    • 1...fxe5
      • 2.Sg5#
  • Tries
    • 1.Qb5?
      • threat
        • 2.Qxb7#
      • 1...Bd5
        • 2.Qxd3#
      • 1...Ba6
        • 2.Qc6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Bc8
        • 2.Qc6#
      • 1...Ba8!
    • 1.Qxe6?
      • threat
        • 2.exf6#
      • 1...fxe5
        • 2.Qxe5#
      • 1...Bd5
        • 2.Qf5#
      • 1...Bc8
        • 2.Qc6#
      • 1...f5!
  • Keys
    • 1.exf6!
      • threat
        • 2.Qxe6#
      • 1...Bd5
        • 2.Qxd3#
      • 1...Bc8
        • 2.Qc6#
      • 1...e5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • B(f);SBLOCK::QAB1(C),XP(a)
    • B(f);N_GUARD::QAB(C)
    • B(f);N_GUARD::QAB(C),XB(f)
    • P(e);N_GUARD,SBLOCK,XP(E)::S(B)
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAB(C),XB(f)
      • Vars
        • B(f);SBLOCK::QAB1(C),XP(a)
        • B(f);N_GUARD::QAB(C)
        • B(f);N_GUARD::QAB(C),XB(f)
      • Refutation
        • B(f);
    • Try
      • Q(C);XP(d)
      • Threat
        • QAR(C)+P(E),XP(e)
      • Vars
        • P(e);OGATE,P_SPINP(e),XP(E)::QAR1(C),XP(e)
        • B(f);SBLOCK::QAB1(C)
        • B(f);N_GUARD::QAB(C)
      • Refutation
        • P(e);
  • Actual
    • P(E);XP(e)
    • Threat
      • QAR2(C),XP(d)
    • Vars
      • B(f);SBLOCK::QAB1(C),XP(a)
      • B(f);N_GUARD::QAB(C)
      • P(d);SBLOCK::S(B)
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