MESON Chess Problem Database

Problem Display
PID: 239873 (1B6/1pP2k2/8/1R1p2K1/8/8/8/8 w - - 0 1)

Lincoln, Robert A

Variantim, 2009

1B6/1pP2k2/8/1R1p2K1/8/8/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.c8Q?
      • threat
        • 2.Rxb7#
      • 1...Ke7
        • 2.Rxb7#
      • 1...Kg7
        • 2.Rxb7#
      • 1...b6!
  • Keys
    • 1.Rxb7!
      • threat
        • 2.c8Q#
      • 1...Ke6
        • 2.c8Q#
        • 2.c8B#
      • 1...Ke7
        • 2.c8Q#
      • 1...Kg7
        • 2.c8Q#
        • 2.c8R#
      • 1...Ke8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kf8
        • 2.c8Q#
        • 2.c8R#
      • 1...Kg8
        • 2.c8Q#
        • 2.c8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(C);
      • Threat
        • R(A),XP(b)
      • Vars
        • K(c);P-FLIGHT::R(A),XP(b)
      • Refutation
        • P(b);
  • Actual
    • R(A);XP(b)
    • Threat
      • P=Q
    • Vars
      • K(c);S_FLIGHT::P=Q
      • K(c);P-FLIGHT::P=Q
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