MESON Chess Problem Database

Problem Display
PID: 39735 (1BK5/1pP5/k7/8/1Q6/r7/8/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

1BK5/1pP5/k7/8/1Q6/r7/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Ra5
      • 2.Qxb7#
  • Tries
    • 1.Qa4+?
      • 1...Kb6
        • 2.Ba7#
      • 1...Rxa4!
  • Keys
    • 1.Ba7!
      • threat
        • 2.Qb6#
      • 1...Kxa7
        • 2.Qxb7#
      • 1...Rb3
        • 2.Qa4#
      • 1...b5
        • 2.Qxa3#
      • 1...b6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • R(a);SBLOCK::QAB1(A),XP(c)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::B(C)
      • Refutation
        • R(a);XQ(A)
  • Actual
    • B(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT,XB(C)::QAR1(A),XP(c)
      • R(a);N_GUARD::QAR2(A)
      • P(c);SBLOCK::QAR(A),XR(a)
      • P(c);::QAR1(A),XP(c)
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Developed and maintained by Brian Stephenson.
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