MESON Chess Problem Database

Problem Display
PID: 194861 (4k2r/7p/4K3/4N1N1/4R1Q1/8/8/8 w - - 0 1)

White, Alain Campbell

Good Companions, 1918

4k2r/7p/4K3/4N1N1/4R1Q1/8/8/8

#2

5 + 3

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kd6?
      • threat
        • 2.Qc8#
      • 1...Kd8
        • 2.Sc6#
        • 2.Sef7#
        • 2.Qd7#
      • 1...Kf8!
    • 1.Qh5+?
      • 1...Kf8
        • 2.Qf7#
      • 1...Kd8!
  • Keys
    • 1.Kf6!
      • threat
        • 2.Qc8#
      • 1...Rf8+
        • 2.Sef7#
      • 1...Kd8
        • 2.Qd7#
      • 1...Kf8
        • 2.Qc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Threat
        • QAR2(B)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • K(E);P-FLIGHT
    • Threat
      • QAR2(B)
    • Vars
      • R(c);CHECK,SBLOCK::R(A)+S(C)
      • K(b);P-FLIGHT::QAR1(B)
      • K(b);P-FLIGHT::QAR(B)
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