MESON Chess Problem Database

Problem Display
PID: 24203 (3N1k1N/4nBn1/5K2/8/8/8/8/8 w - - 0 1)

White, James R

Canadian Illustrated News, 1880

3N1k1N/4nBn1/5K2/8/8/8/8/8

#2

4 + 3

145 StrateGems 1998
3248 Miniatures canadiennes 2000
2786 More Fun with Chess Miniatures 2000
136 Problem Observer 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sef5
      • 2.Sg6#
    • 1...Sc6
      • 2.Sg6#
    • 1...Sg6
      • 2.Sxg6#
    • 1...Sc8
      • 2.Sg6#
    • 1...Sgf5
      • 2.Se6#
    • 1...Se6
      • 2.Sxe6#
  • Tries
    • 1.Ke5?
      • 1...Sg6+
        • 2.Sxg6#
      • 1...Sd5
        • 2.Sg6#
      • 1...Sef5
        • 2.Sg6#
      • 1...Sc8
        • 2.Sg6#
      • 1...Sg8
        • 2.Sg6#
      • 1...Sgf5
        • 2.Se6#
      • 1...Sh5
        • 2.Se6#
      • 1...Se6
        • 2.Sxe6#
      • 1...Se8
        • 2.Se6#
      • 1...Sc6+!
  • Keys
    • 1.Kg5!
      • 1...Se6+
        • 2.Sxe6#
      • 1...Sd5
        • 2.Sg6#
      • 1...Sef5
        • 2.Sg6#
      • 1...Sc6
        • 2.Sg6#
      • 1...Sg6
        • 2.Sxg6#
      • 1...Sc8
        • 2.Sg6#
      • 1...Sg8
        • 2.Sg6#
      • 1...Sgf5
        • 2.Se6#
      • 1...Sh5
        • 2.Se6#
      • 1...Se8
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(D)
    • S(a);N_GUARD::S(D),XS(a)
    • S(b);N_GUARD::S(C)
    • S(b);N_GUARD::S(C),XS(b)
  • Tries
    • Try
      • K(A);S_FLIGHT
      • Vars
        • S(a);CHECK,N_GUARD::S(D),XS(a)
        • S(a);N_GUARD::S(D)
        • S(b);N_GUARD::S(C)
        • S(b);N_GUARD::S(C),XS(b)
      • Refutation
        • S(a);CHECK
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • S(b);CHECK,N_GUARD::S(C),XS(b)
      • S(a);N_GUARD::S(D)
      • S(a);N_GUARD::S(D),XS(a)
      • S(b);N_GUARD::S(C)
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