MESON Chess Problem Database

Problem Display
PID: 155747 (8/b1N5/4K3/8/4k3/3R1R2/8/8 w - - 0 1)

Lincoln, Robert A

The Problemist Supplement, 2015

8/b1N5/4K3/8/4k3/3R1R2/8/8

#2

4 + 2

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • threat
        • 2.Sc3#
        • 2.Sf6#
      • 1...Be3
        • 2.Rfxe3#
      • 1...Bd4!
    • 1.Se8?
      • threat
        • 2.Sd6#
        • 2.Sf6#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bc5
        • 2.Sf6#
      • 1...Bb8
        • 2.Sf6#
      • 1...Be3!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sc3#
        • 2.Sd6#
      • 1...Be3
        • 2.Rdxe3#
      • 1...Bd4
        • 2.Sd6#
      • 1...Bc5
        • 2.Sc3#
      • 1...Bb8
        • 2.Sc3#
        • 2.Rde3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);N_GUARD::R1(B),XB(b)
      • Refutation
        • B(b);
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • B(b);::S(D)
      • Refutation
        • B(b);
  • Actual
    • S(D);
    • Threat
      • DUALS(2)
    • Vars
      • B(b);N_GUARD::R1(A),XB(b)
      • B(b);::S(D)
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