MESON Chess Problem Database

Problem Display
PID: 273571 (2RK4/7Q/1p1N4/3p4/3k1B2/r7/4b3/8 w - - 0 1)

Buhler, Luigi

Die Tat, 1974

(First published on Fri Nov 15 1974)

2RK4/7Q/1p1N4/3p4/3k1B2/r7/4b3/8

#2

5 + 5

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sb5#
      • 2.Qg7#
      • 2.Qh8#
    • 1...Bd1
      • 2.Sb5#
    • 1...Bd3
      • 2.Qg7#
      • 2.Qh8#
    • 1...Bf3
      • 2.Sb5#
    • 1...Bg4
      • 2.Sb5#
    • 1...Bb5
      • 2.Sxb5#
    • 1...Bh5
      • 2.Sb5#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Sf5#
      • 1...Rd3
        • 2.Qb4#
        • 2.Qxb6#
      • 1...Bd3
        • 2.Qg1#
        • 2.Qxb6#
      • 1...Bg4
        • 2.Sb5#
      • 1...Bc4!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Sf5#
      • 1...Rd3
        • 2.Qa4#
      • 1...Bd3
        • 2.Qf2#
      • 1...Bg4
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::S(B)
    • B(a);N_GUARD::S(B),XB(a)
  • Tries
    • Try
      • Q(C);
      • Threat
        • S(B)
      • Vars
        • B(a);N_GUARD::S(B)
      • Refutation
        • B(a);
  • Actual
    • Q(C);
    • Threat
      • S(B)
    • Vars
      • R(b);N_GUARD,SBLOCK,S_CUTB(a)::QAR(C)
      • B(a);OGATE,SBLOCK::QAB(C)
      • B(a);N_GUARD::S(B)
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