MESON Chess Problem Database

Problem Display
PID: 77172 (2N5/5p1K/2B1k3/8/8/7N/8/Q7 w - - 0 1)

Hoffmann, Klaus Peter

Neue Osnabrucker Zeitung, 1994

2N5/5p1K/2B1k3/8/8/7N/8/Q7

#2

5 + 2

6114 Problemschach-Jahrbuch (1994) 1995

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Sg5#
  • Tries
    • 1.Kg7?
      • threat
        • 2.Qf6#
      • 1...f6
        • 2.Qxf6#
      • 1...Kf5!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Bd7#
      • 1...Kf5
        • 2.Bd7#
      • 1...f6
        • 2.Qd5#
      • 1...f5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(b);SBLOCK::S(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • QAR1(A)
      • Vars
        • P(b);::QAR1(A),XP(b)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • B(C)
    • Vars
      • K(a);S_FLIGHT::B(C)
      • P(b);SBLOCK::QAB1(A)
      • P(b);SBLOCK::S(B)
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