MESON Chess Problem Database

Problem Display
PID: 48093 (R7/2K5/4kp2/8/3P4/4BQ2/8/8 w - - 0 1)

Lincoln, Robert A

Still More Fun with Chess Miniatures, 2002

R7/2K5/4kp2/8/3P4/4BQ2/8/8

#2

5 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Rf8?
      • threat
        • 2.Qe4#
      • 1...Ke7
        • 2.Qxf6#
      • 1...f5!
    • 1.Qd5+?
      • 1...Ke7
        • 2.Qd7#
      • 1...Kxd5!
    • 1.Qh5?
      • threat
        • 2.Re8#
      • 1...Ke7
        • 2.Re8#
        • 2.Qe8#
      • 1...f5!
    • 1.Qxf6+?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kxf6!
  • Keys
    • 1.Bg5!
      • 1...Ke7
        • 2.Qxf6#
      • 1...Kf7
        • 2.Qxf6#
      • 1...fxg5
        • 2.Re8#
      • 1...f5
        • 2.Qb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(E);
      • Threat
        • QAR2(B)
      • Vars
        • K(a);P-FLIGHT::QAB1(B),XP(b)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
    • Try
      • Q(B);
      • Threat
        • R(E)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK,XP(b)
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XQ(B)
  • Actual
    • B(A);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b)::QAB1(B),XP(b)
      • K(a);P_SPINP(b),S_FLIGHT::QAR1(B),XP(b)
      • P(b);XB(A)::R(E)
      • P(b);SBLOCK::QAB(B)
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