MESON Chess Problem Database

Problem Display
PID: 176294 (3R4/8/7B/4p3/n1BPk2N/8/8/R3Kn2 w Q - 0 1)

Racz, Erich

Schach-Echo, 1971

3R4/8/7B/4p3/n1BPk2N/8/8/R3Kn2

#2

7 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...exd4
      • 2.Re8#
  • Tries
    • 1.Rd1?
      • threat
        • 2.Bd3#
        • 2.Bd5#
      • 1...exd4
        • 2.Re8#
      • 1...Se3
        • 2.Bd3#
      • 1...Sb2
        • 2.Bd5#
      • 1...Sc3
        • 2.Bd3#
      • 1...Sc5
        • 2.Bd5#
      • 1...Sb6
        • 2.Bd3#
      • 1...Sd2!
  • Keys
    • 1.0-0-0!
      • threat
        • 2.Bd3#
        • 2.Bd5#
      • 1...exd4
        • 2.Re8#
      • 1...Sd2
        • 2.Re1#
      • 1...Se3
        • 2.Bd3#
      • 1...Sb2
        • 2.Bd5#
      • 1...Sc3
        • 2.Bd3#
      • 1...Sc5
        • 2.Bd5#
      • 1...Sb6
        • 2.Bd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB,SBLOCK,XP(D)::R(G)
  • Tries
    • Try
      • R(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(d);OGATEB,XP(D)::R(G)
        • S(a);::B(C)
        • S(b);::B(C)
      • Refutation
        • S(a);
  • Actual
    • K(B);0-0-0
    • Threat
      • DUALS(2)
    • Vars
      • P(d);OGATEB,XP(D)::R(G)
      • S(a);N_GUARD::R(A)
      • S(a);::B(C)
      • S(b);::B(C)
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