MESON Chess Problem Database

Problem Display
PID: 56681 (k6r/2p4p/PpN4K/3B4/8/8/8/6Q1 w - - 0 1)

Lamouroux, D

Bulletin de la FFE, 1923

k6r/2p4p/PpN4K/3B4/8/8/8/6Q1

#2

5 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rg8
      • 2.Qxg8#
    • 1...b5
      • 2.Qa7#
  • Tries
    • 1.Qxb6?
      • threat
        • 2.Qa7#
        • 2.Qb7#
      • 1...Rb8
        • 2.Qa7#
        • 2.Qxb8#
      • 1...cxb6!
  • Keys
    • 1.Bg8!
      • 1...Rxg8
        • 2.Qxg8#
      • 1...b5
        • 2.Qa7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(e);N_GUARD::QAR(A),XR(e)
    • P(a);OGATE::QAR1(A)
  • Tries
    • Try
      • Q(A);XP(a)
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XQ(A)
  • Actual
    • B(B);
    • Vars
      • R(e);OGATE,XB(B)::QAR(A),XR(e)
      • P(a);OGATE::QAR1(A)
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