MESON Chess Problem Database

Problem Display
PID: 145387 (Q4K2/6Bk/8/8/8/3b4/5n2/3B4 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 2012

Q4K2/6Bk/8/8/8/3b4/5n2/3B4

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Qf3?
      • threat
        • 2.Qh5#
      • 1...Kg6
        • 2.Qh5#
      • 1...Be2
        • 2.Qf5#
      • 1...Sg4
        • 2.Qxd3#
      • 1...Bg6!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qh5#
      • 1...Kg6
        • 2.Qh5#
      • 1...Be2
        • 2.Qf5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Bg6
        • 2.Qg8#
      • 1...Sg4
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • K(c);S_FLIGHT::QAB1(C)
        • B(b);N_GUARD::QAB(C)
        • S(a);N_GUARD::QAB(C),XB(b)
      • Refutation
        • B(b);
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • K(c);S_FLIGHT::QAB1(C)
      • B(b);N_GUARD::QAB(C)
      • B(b);N_GUARD::QAB(C),XB(b)
      • B(b);SBLOCK::QAB1(C)
      • S(a);N_GUARD::QAB(C),XB(b)
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