MESON Chess Problem Database

Problem Display
PID: 213220 (b4K1N/7k/5B1p/1RN5/8/8/8/7B w - - 0 1)

Riczu, Lajos

Land og Folk, 1971

b4K1N/7k/5B1p/1RN5/8/8/8/7B

#2

6 + 3

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Be4
      • 2.Bxe4#
    • 1...Bb7
      • 2.Rxb7#
  • Tries
    • 1.Bb7?
      • 1...Bxb7
        • 2.Rxb7#
      • 1...h5!
  • Keys
    • 1.Sb7!
      • threat
        • 2.Be4#
      • 1...Bxb7
        • 2.Rxb7#
      • 1...h5
        • 2.Rxh5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(c);N_GUARD::B(A),XB(c)
    • B(c);N_GUARD::R(B),XB(c)
  • Tries
    • Try
      • B(A);
      • Vars
        • B(c);OGATE,XB(A)::R(B),XB(c)
      • Refutation
        • P(a);
  • Actual
    • S(C);
    • Threat
      • B(A)
    • Vars
      • B(c);OGATE,XS(C)::R(B),XB(c)
      • P(a);OGATEB::R(B),XP(a)
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