MESON Chess Problem Database

Problem Display
PID: 68937 (Q2N4/2K1pR2/4p3/4k3/2p4r/3b4/8/3R2B1 w - - 0 1)

Dobrescu, Emilian

6th Place, Match: Belgrade - Bucharest, 1957-1958

Q2N4/2K1pR2/4p3/4k3/2p4r/3b4/8/3R2B1

#2

6 + 6

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Re4
      • 2.Qa5#
    • 1...Be4
      • 2.Bd4#
  • Tries
    • 1.Re1+?
      • 1...Re4
        • 2.Qa5#
      • 1...Be4
        • 2.Qa5#
      • 1...Be2!
    • 1.Qg2?
      • threat
        • 2.Sc6#
      • 1...Re4
        • 2.Qg5#
      • 1...Be4
        • 2.Qg7#
      • 1...Bf5!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Sc6#
      • 1...Re4
        • 2.Qh5#
      • 1...Be4
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::QAR(E)
    • B(a);S_CUTR(c)::B(B)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • R(c);P_SPINR(c)::QAR(E)
        • B(a);P_SPINB(a)::QAR(E)
      • Refutation
        • B(a);P_SPINB(a)
    • Try
      • Q(E);
      • Threat
        • S(F)
      • Vars
        • R(c);SBLOCK,S_CUTB(a)::QAR2(E)
        • B(a);SBLOCK::QAB(E)
      • Refutation
        • B(a);
  • Actual
    • Q(E);
    • Threat
      • S(F)
    • Vars
      • R(c);N_GUARD,SBLOCK,S_CUTB(a)::QAR(E)
      • B(a);OGATE,SBLOCK::QAB(E)
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