MESON Chess Problem Database

Problem Display
PID: 137618 (3B1Qn1/5Ppn/6kp/5p2/7K/8/8/8 w - - 0 1)

Minost, Andre

Phenix, 1993

3B1Qn1/5Ppn/6kp/5p2/7K/8/8/8

#2

4 + 6

5454 Near Snap 2014

SOLUTION

  • SOUND
  • Tries
    • 1.fxg8Q?
      • threat
        • 2.Qfxg7#
        • 2.Qgf7#
        • 2.Qff7#
        • 2.Qe8#
        • 2.Qgxg7#
      • 1...h5
        • 2.Qfxg7#
        • 2.Qgxg7#
      • 1...Sg5
        • 2.Qfxg7#
        • 2.Qf6#
        • 2.Qgxg7#
      • 1...Sf6
        • 2.Qfxg7#
        • 2.Qxf6#
        • 2.Qff7#
        • 2.Qgxg7#
      • 1...f4
        • 2.Qgf7#
        • 2.Qff7#
        • 2.Qgxg7#
      • 1...Sxf8!
    • 1.fxg8R?
      • threat
        • 2.Rxg7#
        • 2.Qxg7#
        • 2.Qe8#
      • 1...Sg5
        • 2.Rxg7#
        • 2.Qxg7#
      • 1...Sf6
        • 2.Rxg7#
        • 2.Qxg7#
      • 1...h5
        • 2.Qxg7#
      • 1...f4
        • 2.Rxg7#
      • 1...Sxf8!
  • Keys
    • 1.Qe8!
      • threat
        • 2.fxg8Q#
        • 2.fxg8S#
        • 2.fxg8B#
        • 2.fxg8R#
        • 2.f8Q#
        • 2.f8S#
        • 2.f8B#
        • 2.f8R#
      • 1...Sg5
        • 2.f8S#
      • 1...Shf6
        • 2.f8S#
      • 1...h5
        • 2.fxg8S#
      • 1...Sgf6
        • 2.f8S#

Anticipated by 36167(1967)

This is after 24465

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);P_PINP(d),XS(f)
      • Threat
        • DUALS(5)
      • Refutation
        • S(e);XQ(D)
    • Try
      • P(B);P_PINP(d),XS(f)
      • Threat
        • DUALS(3)
      • Vars
        • P(c);::QAR1(D),XP(d)
        • P(a);::R1(B),XP(d)
      • Refutation
        • S(e);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • DUALS(8)
    • Vars
      • S(e);::P=S
      • P(c);::PXS(f)=S
      • S(f);::P=S
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