MESON Chess Problem Database

Problem Display
PID: 18514 (8/8/3p1p1B/4k2B/8/1QK5/8/8 w - - 0 1)

Retter, Yosef

Israel Ring Ty., 1956

8/8/3p1p1B/4k2B/8/1QK5/8/8

#2

4 + 3

2838 Fun with Chess Miniatures 1996
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Qe6#
    • 1...Kf5
      • 2.Qd5#
  • Tries
    • 1.Qc4?
      • 1...Kf5
        • 2.Qd5#
      • 1...f5
        • 2.Bg7#
      • 1...d5!
  • Keys
    • 1.Bf7!
      • threat
        • 2.Qd5#
        • 2.Qe6#
      • 1...Ke4
        • 2.Qd5#
      • 1...Kf5
        • 2.Qe6#
      • 1...d5
        • 2.Qxd5#
      • 1...f5
        • 2.Qe6#

This anticipates 80041(1970)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR2(A)
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);P-FLIGHT::QAR2(A)
        • P(c);OGATEB,SBLOCK::B(D)
      • Refutation
        • P(b);
  • Actual
    • B(C);
    • Threat
      • DUALS(2)
    • Vars
      • K(a);P-FLIGHT::QAB1(A)
      • P(b);::QAR1(A),XP(b)
      • P(c);::QAR1(A)
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