MESON Chess Problem Database

Problem Display
PID: 167741 (k1B5/p2N4/2N5/K7/P7/8/8/8 w - - 0 1)

Shmatov, Vladimir Afanasievich

Themes-64, 1995

k1B5/p2N4/2N5/K7/P7/8/8/8

#2

5 + 2

145 StrateGems 2017
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...a6
      • 2.Sb6#
  • Tries
    • 1.Kb4?
      • 1...a6
        • 2.Sb6#
      • 1...a5+!
    • 1.Kb5?
      • 1...a5
        • 2.Sb6#
      • 1...a6+!
  • Keys
    • 1.Sc5!
      • 1...a6
        • 2.Bb7#

Anticipated by 261931(1964)

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::S(D)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(a);N_GUARD::S(D)
      • Refutation
        • P(a);CHECK
    • Try
      • K(B);P-FLIGHT
      • Vars
        • P(a);N_GUARD::S(D)
      • Refutation
        • P(a);CHECK
  • Actual
    • S(D);
    • Vars
      • P(a);::B(E)
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