MESON Chess Problem Database

Problem Display
PID: 74157 (8/5K2/8/1R1p1B2/2kp1n1Q/1R2b3/1qN5/5r2 w - - 0 1)

Buchwald, Julius

1st Prize, Zivkovic MT, 1955

8/5K2/8/1R1p1B2/2kp1n1Q/1R2b3/1qN5/5r2

#2

6 + 7

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Qa3
      • 2.Sxa3#
    • 1...Qc3
      • 2.Sa3#
    • 1...Qb1
      • 2.Sa3#
    • 1...Se2
      • 2.Sxe3#
    • 1...Sd3
      • 2.Sxe3#
    • 1...Sh3
      • 2.Sxe3#
    • 1...Sh5
      • 2.Sxe3#
    • 1...Se6
      • 2.Sxe3#
    • 1...Sg6
      • 2.Sxe3#
    • 1...d3
      • 2.Bxd3#
  • Tries
    • 1.Qe7?
      • threat
        • 2.R5b4#
        • 2.Qb4#
        • 2.Qc5#
        • 2.Qc7#
      • 1...Qxb3
        • 2.Rc5#
        • 2.Qc5#
      • 1...Qa3
        • 2.Sxa3#
      • 1...Qc3
        • 2.Sa3#
        • 2.Qc5#
        • 2.Qc7#
      • 1...Bd2
        • 2.Qc5#
        • 2.Qc7#
      • 1...Se6
        • 2.R5b4#
        • 2.Qb4#
      • 1...d3
        • 2.R5b4#
        • 2.Qb4#
      • 1...Sd3!
  • Keys
    • 1.Qf6!
      • threat
        • 2.Qc6#
      • 1...Qa3
        • 2.Sxa3#
      • 1...Sd3
        • 2.Bxd3#
      • 1...Se6
        • 2.Bd3#
      • 1...d3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::S(A),XQ(b)
    • Q(b);N_GUARD::S(A)
    • S(f);P_PINB(E),P_SPINP(e)::S(A),XB(c)
    • P(e);P_SPINS(f)::B(E),XP(e)
  • Tries
    • Try
      • Q(C);
      • Threat
        • DUALS(4)
      • Vars
        • Q(b);N_GUARD::S(A),XQ(b)
      • Refutation
        • S(f);P_PINB(E)
  • Actual
    • Q(C);
    • Threat
      • QAR2(C)
    • Vars
      • Q(b);N_GUARD::S(A),XQ(b)
      • S(f);N_GUARD::B(E),XS(f)
      • S(f);N_GUARD::B(E)
      • P(e);N_GUARD::S(A),XB(c)
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