MESON Chess Problem Database

Problem Display
PID: 28647 (5K2/7p/4B1k1/4P3/5p1Q/8/8/8 w - - 0 1)

Lincoln, Robert A

The Problemist, 2001

5K2/7p/4B1k1/4P3/5p1Q/8/8/8

#2

4 + 3

4883 Still More Fun with Chess Miniatures 2002

SOLUTION

  • SOUND
  • Tries
    • 1.Kg8?
      • 1...h5
        • 2.Qf6#
      • 1...h6
        • 2.Qg4#
      • 1...f3!
    • 1.Bg4?
      • threat
        • 2.Qf6#
        • 2.Qh5#
      • 1...h5
        • 2.Qxh5#
      • 1...h6!
    • 1.Bd5?
      • threat
        • 2.Be4#
      • 1...Kf5
        • 2.Qh5#
      • 1...h5!
    • 1.Bg8?
      • threat
        • 2.Bxh7#
      • 1...h5
        • 2.Qf6#
      • 1...h6
        • 2.Qg4#
      • 1...Kf5!
  • Keys
    • 1.Qxf4!
      • threat
        • 2.Bf7#
      • 1...Kh5
        • 2.Bf7#
      • 1...h6
        • 2.Qf5#
      • 1...h5
        • 2.Bf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • P(c);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • P(a);
    • Try
      • B(C);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::QAB1(A),XP(c)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Threat
        • B(C)
      • Vars
        • K(b);S_FLIGHT::QAR2(A)
      • Refutation
        • P(c);
    • Try
      • B(C);
      • Threat
        • B(C),XP(c)
      • Vars
        • P(c);SBLOCK::QAR1(A)
        • P(c);SBLOCK::QAR2(A)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);XP(a)
    • Threat
      • B(C)
    • Vars
      • K(b);S_FLIGHT::B(C)
      • P(c);SBLOCK::QAB1(A)
      • P(c);SBLOCK::B(C)
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