MESON Chess Problem Database

Problem Display
PID: 175856 (8/3B4/8/1npk2N1/2N5/2pPP1b1/8/2K5 w - - 0 1)

Shire, David J

British Chess Magazine, 2018

8/3B4/8/1npk2N1/2N5/2pPP1b1/8/2K5

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4
      • 2.e4#
  • Tries
    • 1.Sf3?
      • threat
        • 2.e4#
      • 1...Sd6
        • 2.Sb6#
      • 1...Bf4!
    • 1.Se4?
      • threat
        • 2.Sf6#
      • 1...Be5
        • 2.Sb6#
      • 1...Bh4!
  • Keys
    • 1.Se6!
      • threat
        • 2.e4#
      • 1...Bf4
        • 2.Sxf4#
      • 1...Sd6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(c);SBLOCK::P(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • P(C)
      • Vars
        • S(c);SBLOCK::S(D)
      • Refutation
        • B(b);P_PINP(C)
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • B(b);SBLOCK::S(D)
      • Refutation
        • B(b);
  • Actual
    • S(E);
    • Threat
      • P(C)
    • Vars
      • B(b);N_GUARD,P_PINP(C)::S(E),XB(b)
      • S(c);N_GUARD,S_CUTB(b)::S(E)
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