MESON Chess Problem Database

Problem Display
PID: 7997 (6Q1/4pp1K/4B1N1/6k1/6P1/4P3/8/8 w - - 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

6Q1/4pp1K/4B1N1/6k1/6P1/4P3/8/8

#2

6 + 3

3713 Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sf4+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Kh4!
    • 1.Sf8+?
      • 1...Kf6
        • 2.Qg7#
      • 1...Kh4!
  • Keys
    • 1.Qf8!
      • 1...Kf6
        • 2.Qxe7#
      • 1...fxe6
        • 2.Qf4#
      • 1...fxg6
        • 2.Qxe7#
      • 1...f5
        • 2.Qxf5#
      • 1...f6
        • 2.Qh6#

This anticipates 104659(1998)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);P_SPINP(c),S_FLIGHT::QAB1(F),XP(b)
      • P(c);OGATE,XB(C)::QAB1(F)
      • P(c);N_GUARD,XS(D)::QAB(F),XP(b)
      • P(c);OGATE::QAR1(F),XP(c)
      • P(c);SBLOCK::QAB1(F)
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