MESON Chess Problem Database

Problem Display
PID: 1050 (3Q3n/q7/pp2k1p1/4N2R/6P1/5p2/8/B4K2 w - - 0 1)

Shire, David J

The Problemist Supplement, 1998

3Q3n/q7/pp2k1p1/4N2R/6P1/5p2/8/B4K2

#2

6 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Qf6+?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kxf6!
    • 1.Qd7+?
      • 1...Kf6
        • 2.Sd3#
        • 2.Sxf3#
        • 2.Sc4#
        • 2.Sc6#
        • 2.Sf7#
        • 2.g5#
      • 1...Qxd7!
  • Keys
    • 1.Sxf3!
      • threat
        • 2.Sg5#
      • 1...Kf7
        • 2.Sg5#
      • 1...Qd7
        • 2.Qf6#
      • 1...Qe7
        • 2.Qd5#
      • 1...Qf7
        • 2.Re5#
      • 1...Sf7
        • 2.Sd4#
      • 1...g5
        • 2.Sxg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);OGATE,S_FLIGHT::QAB1(F)
      • Refutation
        • K(d);P-FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Refutation
        • Q(f);XQ(F)
  • Actual
    • S(D);XP(a)
    • Threat
      • S(D)
    • Vars
      • K(d);S_FLIGHT::S(D)
      • Q(f);SBLOCK::QAR1(F)
      • Q(f);SBLOCK::QAB1(F)
      • Q(f);P_PINS(D),SBLOCK::R1(E)
      • S(g);SBLOCK::S(D)
      • P(e);::S(D),XP(e)
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