MESON Chess Problem Database

Problem Display
PID: 15693 (8/1KQ3N1/1p3nB1/3k3r/7r/4p3/3PN3/7b w - - 0 1)

Chlubna, Friedrich

4th Prize, Deutsche Schachblatter, 1987

8/1KQ3N1/1p3nB1/3k3r/7r/4p3/3PN3/7b

#2

6 + 7

14730 Problempalette II (Chlubna/Wenda) 1991
3297 FIDE Album (1986-1988) 1995
4654 64 + 100 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.Sc3#
    • 1...Re5
      • 2.Qc6#
    • 1...Be4
      • 2.Bf7#
    • 1...Se4
      • 2.Bf7#
  • Tries
    • 1.dxe3?
      • threat
        • 2.Sc3#
      • 1...Se4
        • 2.Bf7#
      • 1...Rc4!
    • 1.d3?
      • threat
        • 2.Bf7#
      • 1...Re5
        • 2.Qc6#
      • 1...Re4!
  • Keys
    • 1.d4!
      • threat
        • 2.Qc6#
      • 1...Rxd4
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • R(c);SBLOCK::S(B)
    • R(e);SBLOCK::QAB1(E)
    • B(a);SBLOCK::B(C)
    • S(g);SBLOCK::B(C)
  • Tries
    • Try
      • P(A);XP(b)
      • Threat
        • S(B)
      • Vars
        • S(g);SBLOCK::B(C)
      • Refutation
        • R(c);
    • Try
      • P(A);
      • Threat
        • B(C)
      • Vars
        • R(e);SBLOCK::QAB1(E)
      • Refutation
        • R(c);
  • Actual
    • P(A);
    • Threat
      • QAB1(E)
    • Vars
      • R(c);SBLOCK,XP(A)::S(B)
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